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Dear Editor, Erdheim-Chester disease (ECD) is a rare non-Langerhans histiocytosis, usually affecting middle-aged to older adults. It is a multisystemic disease with protean clinical manifestations....

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INTRODUCTION In March 2022, the European Commission on cancer screening suggested the inclusion of low-dose computerised tomography (LDCT) for lung cancer, targeted at current...

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An 81-year-old woman of healthy weight presented with a 2-week history of a painless right axillary lump. Physical examination revealed a 2cm firm nodule...

Safe time interval for screening estimated glomerular filtration rate prior to gadolinium-enhanced MRI scan

Dear Editor, Magnetic resonance imaging (MRI) contrast media are commonly used in medical imaging and are usually gadolinium-based contrast agents (GBCAs). They can be divided...

The Lancet Commission on diagnostics: What it means for Singapore

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Reduction in Retake Rates and Radiation Dosage Through Computed Radiography

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Computed Tomographic and Magnetic Resonance Imaging Findings in Paranasal Sinus Involvement in Nasopharyngeal Carcinoma

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Book Review

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The Sixth SGH Lecture—Singapore: A New Venice of the 21st Century

Venice is one of the legendary cities of the world. Its beauty and physical setting make Venice unique. For almost 800 years, from 1000...

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A Review of the Role of Magnetic Resonance Imaging in the Evaluation of Shoulder Impingement Syndrome and Rotator Cuff Tendon Tears

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Percutaneous Needle Aspiration in the Treatment of Hepatic Abscess: Factors Influencing Patients’ Outcome

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Medicine and Surgery—History, Change and Challenge

Mr Koh Yong Guan, guest-of-honour; Dr Tan Ser Kiat, Master, Academy of Medicine; Dr K C Tan, Chairman, Chapter of Surgeons; Dr Robert Jalleh...

Imaging of Thoracic Manifestations of Scleroderma

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Overview of Imaging in Rheumatologic Diseases

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Current Continuing Medical Education Provision in Singapore

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Early 21st Century Professional Practice: Change and Challenge

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9th Seah Cheng Siang Memorial Lecture: Gastric Cancer—Where are we now?

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New Treatment and Research Strategies for the Improvement of Care of Cleft Lip and Palate Patients in the New Millennium

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Magnetic Resonance Imaging of Brain Metastases: Magnetisation Transfer or Triple Dose Gadolinium?

Accurate detection of brain metastases is an important part of tumour staging. Magnetic resonance (MR) imaging is well accepted as a sensitive tool in...

Radiological Placement of 211 Central Venous Catheters: Outcome and Complications

Long-term central venous access is an important part of modern medical practice, especially in the haematology and oncology units. Central venous (CV) catheters are...

Young Investigator’s Award: Induction of Apoptosis Following Traumatic Head Injury in Humans

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8th Seah Cheng Siang Memorial Lecture: New Antithrombotic Agents

The tremendous interest in finding new anti-aggregating agents stems from the preeminent role that platelets play, not only in haemostasis and thrombosis, but also...

3rd Yahya Cohen Lecture: The Role of the Myofibroblast-Like Cell in Hepatocellular Carcinoma—Host Defence?

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9th Chapter of Surgeons’ Lecture: The Orthopaedic Surgeon: Historical Perspective, Ethical Considerations and the Future

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1998 Distinguished Academician Lecture: Hepatic Resection— A Western Perspective

Although debridement of portions of liver that prolapsed through war wounds was recorded from distant times, attempts at resection of a solid liver tumour...

1998 Runme Shaw Memorial Lecture: Somatic Evolution of Cancer

The interpretation of cancer as a somatic evolutionary process involving genetic mutation followed by selection, goes back to the early years of this century....

14th Gordon Arthur Ransome Oration: Continuity and Change

Deputy Prime Minister Lee Hsien Loong, Datuk Dr Yeoh Poh Hong, Dr Chee Yam Cheng, distinguished guests, ladies and gentlemen, I am deeply honoured...

The Future of Medicine from the Standpoint of the Practising Paediatrician

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Tissue Microangiography Using a Simplified Barium Sulphate Cadaver Injection Technique

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Radionuclide Studies of Articular Cartilage in the Early Diagnosis of Arthritis in the Rabbit

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Retroperitoneal Castleman’s Disease in the Perinephric Space—Imaging Appearance: A Case Report and a Review of the Literature

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Evaluation of Technetium-99m Ciprofloxacin (Infecton) in the Imaging of Infection

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Address by the Master, Academy of Medicine, Singapore at the 2000 Annual Induction Dinner—Learn the Past, Ensure the Future

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Response by the Representative of Inductees, Academy of Medicine, Singapore at the 2000 Annual Induction Ceremony—A Call to Patient Advocacy

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Address by the Master, Academy of Medicine, Singapore at the 2000 Annual Induction Ceremony—The EQ & IQ of Specialist Doctors

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8th SGH Lecture: Genomics, Talent and the Development of the Life Sciences Industry in Singapore

In a few months’ time, one of the most significant advances, possibly the most significant advance ever in the history of biology and medicine,...

3rd Tan Tock Seng Hospital Oration: The Changing Fabric of Medicine—An Ethical and Social Revolution

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Management of Growth Arrest with Tissue-engineered Cells

Before I go on to the scientific aspects of my talk, I would like to pay tribute to Dr Yahya Cohen. Dr Cohen was...

10th Chapter of Surgeons’ Lecture: The Challenges in Surgery—Past, Present and Future, and in Search of the 4Cs

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Opening Address by Dr Chee Yam Cheng, Master, Academy of Medicine, Singapore at the 33rd Annual Combined Surgical Meeting on 4 November 1999 at the COMB Auditorium

It is a pleasure to be present with you all at your 33rd Annual Combined Surgical Meeting for 1999 with less than 60 days...

Funding and Future Diagnosis Related Group Development

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Clinical Pathways or Case Management

Supplement on Casemix Conference Singapore 2001 held on 17-19 August 2001 in Singapore This article is available only as a PDF. Please click on “Download...

Getting Clinicians Involved: The Australian Experience

Supplement on Casemix Conference Singapore 2001 held on 17-19 August 2001 in Singapore This article is available only as a PDF. Please click on “Download...

The 4th Tan Tock Seng Hospital Oration: Challenge for the Medical Profession in the 21st Century

I am greatly honoured to speak at the 4th TTSH Oration following such distinguished luminaries like Dr Chew Chin Hin, Dr Chen Ai Ju...

Alternate Modes of Financing Health Care Technology

Alternative financing of health care delivery is one of the most vexing problems facing medicine today. Intensive care in many ways is a perfect...

2nd Chapter of Paediatricians Lecture: The Future of Paediatrics in Singapore

When I was first invited to give this 2nd Chapter of Paediatricians Lecture by the Chapter, my obvious answer was no. I could think...

10th Seah Cheng Siang Memorial Lecture: Going Places—A Rheumatological Odyssey

I am greatly honoured to deliver the 10th Seah Cheng Siang memorial lecture. I came into direct contact with Professor Seah in January 1965...

5th Yahya Cohen Lecture: Angiosomes and Extension of Skin Flaps—Anatomic Study and Clinical Implications

I would like to express my gratitude to the Chapter of Surgeons and the Academy of Medicine, Singapore for the honour of presenting this...

11th Chapter of Surgeons Lecture—The Art of Letting Go

These observations were made by a Persian mathematician some 900 years ago. His sentiments are self-evident but no less easy to accept especially for...

15th Gordon Arthur Ransome Oration: A Journey of Care—Mission Impossible?

I am deeply honoured by the invitation to deliver the 15th Sir Gordon Arthur Ransome Oration. This article is available only as a PDF. Please...

The Runme Shaw Memorial Lecture 2000—Treating VIPs in Washington

My lecture is about people, power, illness, and the patient-physician relationship. It is the personality of the politician or official, the ego elevation conferred...

12th Chapter of Surgeons Lecture: Shifting Paradigms in the Management of Breast Cancer—A Surgical Perspective

The recorded history of breast cancer management spans four millennia. This story about breast cancer management is also one about change, about resistance to...

5th Tan Tock Seng Hospital Oration: Advances for Life

I am honoured and privileged to have been invited to deliver the 5th Tan Tock Seng Hospital (TTSH) Oration at the Opening of your...

6th Yahya Cohen Lecture: Visual Experience During Cataract Surgery

What a patient can see during his or her surgery can be a cause of anxiety for the patient. It may cause additional stress...

Magnetic Resonance Arthrography of the Labral-Ligamentous Complex of the Shoulder: An Update

Shoulder instability is a frequently encountered clinical problem in young active people following injury, particularly in athletes. The labral-ligamentous complex is increasingly recognised as...

Limited Magnetic Resonance Imaging (MRI) and the Occult Hip Fracture

Worldwide, in the past decade, the application of magnetic resonance imaging (MRI) has increased tremendously in the management of musculoskeletal trauma. Not least is...

Technetium-99m Methoxyisobutylisonitrile Imaging in the Follow-up of Differentiated Thyroid Carcinoma

Differentiated thyroid carcinoma (DTC) is not an uncommon tumour in Thailand.1 A high percentage of 10-year survival results in long-term follow-up. I-131 total-body scan...

Embolisation of a Renal Artery Pseudoaneurysm in a Patient with Renal Malrotation and Chronic Aortic Dissection

A 40-year-old Chinese male presented with severe right loin pain. He had a history of chronic abdominal aortic dissection of unknown aetiology. He was...

Single Centre Review of Radiologically-guided Percutaneous Nephrostomies: A Report of 273 Procedures

Percutaneous nephrostomy (PCN) is a well-established technique in the armamentarium of an interventional radiologist when dealing with urinary obstruction. It provides temporary relief in...

To Establish the Normal Bone Mineral Density Reference Database for the Singapore Male

Bone mineral densitometry was developed as a means to quantify the bone mineral content of the skeleton accurately and has been used in the...

Percutaneous Vertebroplasty in the Management of Osteoporotic Vertebral Compression Fractures: Initial Experience

With the general increase in life expectancy in the local population, the incidence of osteoporosis is anticipated to rise as well. Even with screening...

Differentiation of Malignant Vertebral Collapse from Osteoporotic and Other Benign Causes Using Magnetic Resonance Imaging

An elderly patient presenting with backache and vertebral collapse on plain X-ray is a common clinical scenario and a diagnostic challenge. It is difficult...

Is Healthcare Competition Healthy?

There are many problems which all Health Ministers worry about. But we can generally boil them down to one common problem: “money no enough”. This...

Letter to the Editor

We would like to draw the attention of your readers to the comments made in the editorial of the recent Imaging issue of your...

Imaging-guided Bone Biopsy

Biopsy may be performed at surgery (open biopsy) or percutaneously (closed biopsy). Percutaneous bone biopsies are usually performed under imaging guidance using a variety...

Carcinoma of the Cervix: Role of MR Imaging

In females with cancer, cervical carcinoma is second to breast cancer in both incidence and mortality worldwide. About 465,000 new cases are diagnosed each...

Intracerebral Schwannoma—A Rare Cause of Epilepsy

Schwannomas are extra-axial neoplasms derived from the nerve sheath of peripheral or cranial nerves. They represent approximately 8% of all intracranial tumours, arising predominantly...

Radiographic Features of a Case of Severe Acute Respiratory Syndrome with Fatal Outcome

Severe acute respiratory syndrome (SARS) is an atypical pneumonia that was first reported in early 2003. Reports of outbreaks of cases rapidly appeared in...

Clinical Applications of MR Cholangiopancreatography

Magnetic resonance cholangiopancreatography (MRCP) has attracted a lot of interest from clinicians because it is a non-invasive method of obtaining a cholangiographic image without...

Imaging of Paediatric Mediastinal Masses

A review of mediastinal masses in children, emphasising imaging features, is important for several reasons. Firstly, the mediastinum is the most common location for...

Clinical Positron Emission Tomography Imaging—Current Applications

Like other radionuclide techniques, positron emission tomography (PET) is based on the tracer principle – a small amount of labelled ligand is used to...

MR Imaging and MR Spectroscopy of Adenocarcinoma of the Prostate

Prostate cancer is usually suspected due to an abnormal digital rectal examination, elevated serum prostate specific antigen (PSA) level or both. The diagnosis of...

Imaging of Congenital Middle Ear Deafness

When a child or young adult with morphologically normal external ears and no previous history of ear discharge or trauma presents with conductive hearing...

MR Imaging of the Fetal Brain and Spine: A Maturing Technology

The introduction of a new diagnostic test into a clinical arena goes through a number of stages. The first stage is technical development. This article...

Imaging of Acquired Immunodeficiency Syndrome (AIDS)

The pandemic of human immunodeficiency virus (HIV)/acquired immunodeficiency syndrome (AIDS) is a global healthcare problem and HIV infection is the most common cause of...

The Singapore National Breast Screening Programme: Principles and Implementation

In January 2002, the first population-based national mammographic breast screening programme in Asia, the Singapore National Breast Screening Programme (BreastScreen Singapore), was launched. The...

Brachiocephalic-Superior Vena Cava Metallic Stenting in Malignant Superior Vena Cava Obstruction

A large majority of superior vena cava (SVC) syndrome is caused by malignancy (74% to 95%). This can either be due to direct SVC...

Pilot Study Using Technetium-99m Pertechnetate Sequential Radionuclide-Sialography to Assess Salivary Gland Function in Nasopharyngeal Cancer Patients on Radiation Therapy

Nasopharyngeal carcinoma (NPC) is an epithelial malignancy occurring worldwide with particularly high frequencies in the Far East. The incidence is highest in Hong Kong...

Breath-hold Fast Recovery Fast Spin Echo versus Conventional Non-Breath-hold Fast Spin Echo T2-Weighted MR Imaging of Focal Liver Lesions

T2-weighted magnetic resonance (MR) imaging is an important sequence for characterisation of focal liver lesion. Accurate characterisation of benign lesions, such as haemangioma or...

Diffusion-weighted MR Imaging in Intracranial Infections

Diffusion-weighted magnetic resonance (MR) imaging (DWMRI) is becoming essential to the assessment of acute cerebral infarction and has also been applied to distinguish cerebral...

Preoperative High Resolution CT and MR Imaging in Cochlear Implantation

Candidates for cochlear implantation undergo a thorough audiological and medical assessment. The audiological assessment is done to ensure that these candidates who have bilateral...

Non-consensual Double Reading in the Singapore Breast Screening Project: Benefits and Limitations

Double reading of mammogram is not the standard practice in the United Kingdom National Health Service Breast Screening Programme (NHSBSP). Rather, single reading of...

Breast Cancer in Women Under 40 Years: Preoperative Detection by Mammography

The incidence of breast cancer peaks between the ages of 45 and 55 years. Approximately 7% of breast cancers occur below 40 years of...

The Past Decade of Diagnostic Radiology in Singapore: How Much Progress Have We Really Made?

It has been 10 years since the first ever issue of Annals dedicated to “Radiology” was published in Volume 22 No. 5 September 1993....

Neonatology In Singapore: The Way We Were, The Way Forward

Over a span of 35 years of my working life, I have witnessed the growth of, and also grown together with, neonatology in Singapore....

Significance of the Lateral Epiphysis of the Acetabulum to Hip Joint Stability

Developmental dysplasia of the hip (DDH) remains one of the most difficult disorders to understand and treat in Paediatric Orthopaedics. The aetiology have not...

Craniofacial Anomalies: Clinical and Molecular Perspectives

Cleidocranial dysplasia is an autosomal dominant skeletal disorder characterized by short stature, brachycephaly, delayed closure of the fontanelles and sutures, Wormian bones, midface hypoplasia,...

Autoimmune Liver Disease in Children

Autoimmune liver disorders are inflammatory liver diseases characterised histologically by a dense mononuclear cell infiltrate, including plasma cells, in the portal tract (Fig. 1)...

HIV/AIDS in Children

The human immunodeficiency virus (HIV) infection and acquired immunodeficiency syndrome (AIDS) epidemic in Asia has grown from a handful of cases to a major...

Colorectal Hepatic Metastases: Role of Radiofrequency Ablation

Colorectal cancer is the second most common cancer in Singapore, accounting for 15.9% of all cancers registered with the Singapore Cancer Registry in the...

Computed Tomographic Appearance of Colorectal Hepatic Metastases

It is important to recognise the computed tomography (CT) appearance of hepatic metastases from colorectal primaries, as resection in a selected group may offer...

Current Status in Imaging of Colorectal Liver Metastases

Colorectal cancer is a common primary that metastasizes to the liver. About 20% of patients with colorectal cancer will have detectable metastases at the...

Routine Abdominal and Pelvic Ultrasound Examinations: An Audit Comparing Radiographers and Radiologists

Since its introduction into clinical practice in the early 1970s, ultrasound (US) has become firmly established as an extremely valuable imaging modality and widely...

Clinical Utility of Selective Intra-arterial Calcium-stimulated Hepatic Venous Sampling in Regionalisation of Insulinomas—The Singapore Experience

Insulinomas are small tumours with dimensions that seldom exceed 2.0 cm in diameter. Preoperative non-invasive localisation using trans-abdominal ultrasound and conventional computed tomography (CT)...

Inaugural College of Obstetricians & Gynaecologists Lecture: Recent Developments in Obstetric Care and Maternal Fetal Medicine in Singapore

Has it done any good to pregnancy outcome as promised? This article is available only as a PDF. Please click on “Download PDF” on top...

Citation on Dr Andrew Chew Guan Kuan for Admission to Honorary Fellowship on 19 August 2004

It is indeed a great pleasure and honour to present to you Dr Andrew Chew Guan Khuan, who is already a Fellow of the...

Citation on Sir Donald Irvine – 17th Gordon Arthur Ransome Orator

It is my pleasure and privilege to introduce Sir Donald Irvine as the 17th Gordon Arthur Ransome Orator. This article is available only as a...

Address by Master, Academy of Medicine, Singapore at the Opening Ceremony of the 38th Singapore-Malaysia Congress of Medicine and Induction Ceremony

It is my pleasure to welcome you to the Opening Ceremony of the 38th Singapore-Malaysia Congress of Medicine with participation of the Hong Kong...

1st College of Physicians Lecture: The Role of Internal Medicine as a Specialty in the Era of Subspecialisation

It humbles me to accept the invitation to give this lecture, the First College of Physicians Lecture, titled “The Role of Internal Medicine as...

15th Chapter of Surgeons Lecture: Surgeon of the New Millennium – Surgeon, Scientist and Scholar

Next year, we celebrate a hundred years of medical education in Singapore. We have come a long way since 1821 – from a small,...

Standards and Revalidation or Recertification

In my Gordon Arthur Ransome Oration and other papers, I have described the nature and development of patient-centred professionalism, the key features of which...

Continuing Professional Development – a Surrogate for Recertification?

The Hong Kong Academy of Medicine is a statutory body set up in 1993 with the objectives of fostering the development of postgraduate medical...

Teaching and Learning of Professionalism in Medical Schools

There is now worldwide consensus that the elements of medical professionalism need to be enhanced and explicitly taught in medical schools. Medical schools in...

The Challenge of Teaching Professionalism

For the past 25 years, professionalisation, industrialisation, large-scale infusions of technology into the healthcare system and consumerism, to name a few factors, have definitely...

2004 Runme Shaw Memorial Lecture: Professionalism – A Concept in Need of Nurturing

It is a great honour to be invited to deliver the Runme Shaw Memorial Lecture. I am grateful to the Runme Shaw Foundation for...

17th Gordon Arthur Ransome Oration: Patient-centred Professionalism

When sickness strikes we all need doctors. People everywhere know that the quality of medical care can affect the outcome and possible consequences of...

Reflections of a Septuagenarian – Radiology: Past, Present and Future

Before I commence, I would like to thank the Singapore Radiological Society and the Chapter of Radiologists of the Academy of Medicine for inviting...

The Role of Public Health and Occupational Physicians in the New Millennium

I want to thank the Chapter and organisers for honouring me with this kind invitation to speak to you. This millennium is only 4...

Flap Prefabrication – The Bridge Between Conventional Flaps and Tissue-engineered Flaps

Flap prefabrication is one of the most exciting areas in Plastic Surgery because of its bridging role between conventional reconstructive surgery and tissue engineering....

Imaging Findings in Acute Neck Infection due to Pyriform Sinus Fistula

Pyriform sinus fistula is a developmental abnormality of the 3rd or 4th branchial pouch. It usually presents in childhood as acute inflammatory swelling of...

Audit of Diagnostic and Interventional Craniocervical Catheter Angiographic Procedures at the Singapore General Hospital

Catheter angiography has long been considered the diagnostic standard by which the accuracy of other vascular imaging modalities are compared, given its superior contrast...

Breast Ultrasound in Women With Familial Risk of Breast Cancer

Mammography is the modality of choice to screen for breast cancer in asymptomatic women. However, it is known that about 10% to 12% of...

Coronary Artery Disease: Comprehensive Evaluation by Cardiovascular Magnetic Resonance Imaging

Coronary artery disease (CAD) is a major health problem worldwide. With advances in CAD intervention and improvements in treatment and management of CAD, there...

Refining Clinical Practice: Transforming Science Research into the Art of Medicine

I am humbled by the invitation given to me by Changi General Hospital to deliver this lecture at your 5th Annual Scientific Meeting with...

14th Chapter of Surgeons Lecture: Back to Basics

I am happy to be among old friends. As surgeons, we share a kindred spirit. I wish to thank the Academy for the honour...

A Case of Right Loin Pain: Septic Ovarian Vein Thrombosis Due to Campylobacter fetus Bacteraemia

Septic ovarian venous thrombosis is an uncommon entity. Classically, it occurs as a postpartum complication with reported frequency of 1 in 600 to 2000...

Clinical Indications for Positron Emission Tomography (PET) Scanning

The purpose of these guidelines is to provide a broad framework for clinicians considering the use of positron emission tomography (PET) scanning for their...

Semi-Quantitative Measurements of Normal Organs With Variable Metabolic Activity on FDG PET Imaging

Positron emission tomography (PET) has a proven clinical role in oncology, cardiology and neurology that primarily uses 2-deoxy-2--fluoro-deoxyglucose (FDG). FDG is an analogue of...

Clinical Applications of Positron Emission Tomography in Cardiology: A Review

Ischaemic heart disease associated with depressed left ventricular function is a common clinical management dilemma. There is overwhelming evidence that such patients have a...

The Role of FDG-PET in the Management of Non-small Cell Lung Carcinoma

Carcinoma of the lung is the leading cause of cancer death in both men and women and is the second most common malignancy in...

Clinical PET Imaging – An Asian Perspective

Positron emission tomography (PET) is distinct from other imaging modalities in its ability to probe the physiology and biochemistry of normal and abnormal tissues....

PET Tracers and Radiochemistry

Positron emission tomography (PET) has become a powerful scientific and clinical tool for probing biochemical processes in the human body. This is due, in...

Physical Principles and Technology of Clinical PET Imaging

The past few years have seen the transition of positron emission tomography (PET) from the research domain into mainstream clinical applications for oncology. The...

Positron Emission Tomography – A Vital Component of Molecular Imaging

Contemporary medical imaging is progressing towards quantification of tissue function in addition to merely providing anatomical information, as illustrated by the rising use of...

Use of D-dimer and Lower Extremity Doppler Ultrasound Results to Obviate the Need for Computerised Tomographic Pulmonary Angiography

The diagnosis of pulmonary embolism (PE) can be a challenging problem. It depends on clinical suspicion and the interpretation of a combination of clinical...

Image-guided Radiofrequency Ablation of Liver Malignancies: Experience at Singapore General Hospital

Radiofrequency (RF) ablation for the treatment of focal liver malignancies is a relatively new image-guided procedure that is gaining increasing acceptance in the radiologic...

3rd College of Physicians’ Lecture – Translational Research: From Bench to Bedside and From Bedside to Bench; Incorporating a Clinical Research Journey in IgA Nephritis (1976 to 2006)

In our quest to pursue knowledge regarding a patient’s illness or seek a cure for the disease, as doctors we have to derive the...

16th Seah Cheng Siang Memorial Lecture – The Changing Face of Cardiology Practice, Training and Research in Singapore

Professor Seah Cheng Siang was one of the most illustrious physicians of his era. During his professional career, he held the following positions: Head,...

Building Collaboration in Cardiac Imaging

Publicity about new developments in medical technology is not at all unusual. But the degree with which multi-slice computed tomography (MSCT) for coronary artery...

Singapore National Medical Image Resource Centre (SN.MIRC): A World Wide Web Resource for Radiology Education

Radiological images are critical for diagnosis, teaching and research. In radiology education, learners must be exposed to large amounts of visual information, and assimilation...

Teleradiology in Singapore – Taking Stock and Looking Ahead

Teleradiology is the electronic transmission of radiologic images from one location to another for the purposes of interpretation and/or consultation. The current interest in...

Radiographic Features of SARS in Paediatric Patients: A Review of Cases in Singapore

Severe acute respiratory syndrome (SARS) is a newly emerged atypical pneumonia caused by the SARS-associated coronavirus (SARS-CoV). It is easily transmitted via droplet infection...

10th Yahya Cohen Memorial Lecture: Clinical Predictors in Obstructive Sleep Apnoea Patients with Computer-assisted Quantitative Videoendoscopic Upper Airway Analysis

Obstructive sleep apnoea (OSA) is a common disease, which is estimated to affect up to 2% of middle-aged women and 4% of middle-aged men.1...

New Treatments for Atopic Dermatitis – Facts, Comparisons and Uncertainties

Atopic dermatitis is associated with asthma and allergic rhinitis, and presents with a typical morphology and distribution. Eighty-four per cent of cases of atopic...

A Case of Cystic Schwannoma of the Lesser Sac

Schwannoma or neurilemmoma (NL) is a well-defined, usually benign, tumour arising from the nerve sheath (Schwann cell). It may present as a solitary mass...

5th College of Physicians Lecture – A Physician’s Odyssey: Recollections and Reflections

Allow me to thank you Mr President and your Council for asking me to deliver the 5th College of Physicians Lecture. Your President has...

Brachytherapy – One Man’s Meat, A Personal Journey in Radiation Oncology

Dr Tan Kim Ping, Chairman for the Dr FY Khoo Memorial Lecture, Ladies and Gentlemen – It is a signal honour for me to...

Retinal and Cardiovascular Diseases: The “Common Soil” Theory

There is increasing evidence that retinal and cardiovascular diseases share a “common soil”. Risk factors for cardiovascular disease, such as hypertension, diabetes, hyperlipidaemia and...

4th FY Khoo Memorial Lecture 2008: Nasopharyngeal Cancer Workgroup – The Past, The Present and The Future

Thank you Madam Chairman. First, I would like to thank the Singapore Radiological Society and the College of Radiologists, Academy of Medicine Singapore for...

3rd College of Paediatrics and Child Health Lecture – The Past, the Present and the Shape of Things to Come…

In the post-war days of the 1950s, Singapore children were faced with problems of malnutrition and infectious diseases. There was poverty, overcrowded housing and...

Magnetic Resonance Imaging of Sports Injuries of the Knee

Sports-related knee injuries are common, with contact sports and sports involving twisting movements being the most frequent causes. Sports injuries may affect any of...

Local Experience of Endorectal Magnetic Resonance Imaging of Prostate with Correlation to Radical Prostatectomy Specimens

Prostate cancer ranks among the top 10 cancers in Singapore. The incidence of prostate cancer has risen by 5% to 118% in most Asian...

The Role of Electrophysiology in the Diagnosis and Management of Cervical Spondylotic Myelopathy

Cervical spondylosis is an extremely common condition managed by both physicians and surgeons in daily clinical practice. Cervical spondylotic myelopathy (CSM), resulting from longstanding...

Demands and Challenges of Modern Medicine

I am deeply honoured by the invitation to deliver the 16th Tun Dr Ismail Oration and I wish to thank the Master and Council...

Happenings in Histopathology – A Post-World War II Perspective

During the past few decades, there have been many significant developments in the practice of histopathology, the specialty that is also referred to as...

Tumour Interstitial Fluid Pressure May Regulate Angiogenic Factors in Osteosarcoma

Solid tumours have states of raised interstitial fluid pressure (IFP) that cause significant changes to their physiology.1-3 We have previously shown that human osteosarcomas...

Surgical Training – The Challenge of Change

President of the College of Surgeons, distinguished guests, friends, ladies and gentlemen. It is a great honour and a unique privilege for me to...

Preparedness for Terrorism: Managing Nuclear, Biological and Chemical Threats

Preparedness for terrorism in the 21st century includes addressing the management of nuclear, biological and chemical (NBC) terrorism events. Understanding the terrorist threat and...

5th College of Surgeons Lectureship: Surgery beyond Scalpels

The training of surgeons composed of two aspects: (1) Clinical skill and competence; (2) The ‘soft’ skill and ‘art’ of surgery. With the gradual...

Medical Misadventure: Barium Extravasation in Colorectal Cancer

Double contrast barium enema (DCBE) is a safe and accurate diagnostic procedure for colorectal cancer. It is often the next diagnostic test after incomplete...

The Evolution of Radiology from Paraclinical to Clinical

I would like to thank the Academy of Medicine and the Singapore Radiological Society for giving me the honour of delivering this year’s F...

Durian Seed Masquerading as Gallstone Ileus on Computed Tomography

Bezoars and gallstones are unusual causes of small bowel obstruction, with well-described imaging features on CT. We present a case of intestinal obstruction caused...

A Survey of Local Preclinical and Clinical Medical Students’ Attitudes towards Radiology

Radiology is not a popular specialty for undergraduate student electives or postgraduate training amongst students from a local undergraduate medical school which is based...

Primary Epithelioid Angiosarcoma of the Lung Presenting as Left-sided Shoulder Pain

Primary angiosarcoma of the lung is a rare, often difficult to diagnose disorder with non-specific respiratory manifestations. Angiosarcoma involving the lung is usually a...

Macronodular Tuberculosis: Imaging Resemblance of Cholangiocarcinoma

The ability of multiphasic computed tomography (CT) and magnetic resonance (MR) studies in the diagnosis of liver tumours such as hepatocellular carcinoma and cholangiocarcinoma...

Central Clot Score at Computed Tomography as a Predictor of 30-day Mortality after Acute Pulmonary Embolism

Multi-detector Computed Tomography (MDCT) pulmonary angiography is currently the method of choice for the detection of acute pulmonary embolism (PE), because of its convenience,...

3rd College of Surgeons Lecture — Bringing up Surgeons

I am greatly honoured to be given the privilege of delivering the 3rd College of Surgeons Lecture, especially when I have retired from surgery...

12th Yahya Cohen Memorial Lecture – The Cellular and Molecular Basis of Radiation-induced Sensori-neural Hearing Loss

Radiation-induced sensori-neural hearing loss (SNHL) has long been recognised as a complication of radiotherapy (RT) for head and neck tumours, if the auditory pathways...

11th Yahya Cohen Memorial Lecture – An In vivo Comparative Study of the Ability of Derived Mesenchymal Stem Cells in the Treatment of Partial Growth Arrest

It has been my greatest pleasure and honour to accept this, the 11th Yahya Cohen Memorial Lectureship on the anniversary of a half century...

Challenges and Pitfalls in the Introduction of Pharmacogenetics for Cancer

Pharmacogenetics, by definition, refers to the study of genetic differences in metabolic pathways which can affect an individual’s responses to drugs in terms of...

7th College of Physicians Lecture — The Changing Face of Medicine, Medicine – Past, Present and Future

When we think about medicine, just like we do about other things in life in the past and the present, we usually reflect on...

15th Yahya Cohen Memorial Lecture – The Relationship between the Air-bone Gap and the Size of Superior Semicircular Canal Dehiscence

Superior semicircular canal dehiscence (SSCD) can result in a characteristic constellation of vestibular and auditory features, including autophony, oscillopsia, and vertigo, and characteristic eye...

5th Chao Tze Cheng Memorial Lecture—Recent Developments in Informed Consent

The question of informed consent is a concern of recent origin and has engaged the mind of the medical profession here for only some...

7th Tan Tock Seng Oration: Surgical Excellence at TTSH—100 Years on and onward

Mr SR Nathan, our guest of honour, Mr Gan Kim Yong, Minister for Health, Madam Kay Kuok, Chairman of NHG Board, Board members, colleagues,...

8th FY Khoo Memorial Lecture 2012 —Why Radiologists Need Philosophy

Firstly, I wish to thank the Singapore Radiological Society and the College of Radiologists, Singapore for deeply honouring me with the invitation to give...

6th College of Surgeons Lecture The Philosophy of Balance: The Art of Healing

With the rise of high tech medicine, and emphasis on the scientific aspects of medicine, there is danger that we may lose the balanced...

Periarticular FDG Uptake on PET/CT in Malignant Melanoma—Metastatic or Misleading?

A 74-year-old male with newly diagnosed melanoma of the right mastoid region, underwent resection of the lesion followed by F-18 fluoro-deoxyglucose (FDG) positron emission tomography/computed...

2013 Runme Shaw Memorial Lecture: Clinical Applications of Stem Cells in Modern Medicine—21st Century and Beyond

The rapid advancement of biomedical research in the recent years was propelled by a series of groundbreaking technological inventions and breakthrough discoveries. In this...

22nd Gordon Arthur Ransome Oration: Is Medicine Still an Art?

Distinguished guests and colleagues in medicine, I am deeply honoured to have been invited to deliver this 22nd oration in honour of Sir Gordon...

Ultrasound-Guided Thyroid Fine Needle Aspiration Biopsy—The Way Forward

I read with great interest the recent article published in the Annals of Academy of Medicine Singapore entitled, ‘Surgeon-Performed Ultrasound-Guided Fine Needle Aspiration Cytology...

Relationships between Prostatic Volume and Intravesical Prostatic Protrusion on Transabdominal Ultrasound and Benign Prostatic Obstruction in Patients with Lower Urinary Tract Symptoms

Benign prostatic hyperplasia (BPH) is one of the commonest diseases of ageing men. It can be associated with bothersome lower urinary tract symptoms (LUTS)...

Are Pregnant Women Adequately Equipped for Autonomy in Pregnancy Screening?

The concept of first trimester screening (FTS) to evaluate the risk of fetal aneuploidies was first introduced in 1997 by Orlandi et al. The...

24th Seah Cheng Siang Lecture: Seeing Better, Doing Better—Evolution and Application of Gastrointestinal (GI) Endoscopy

Man’s innate curiosity to study the internal organs of the human body dates back to the time of Hippocrates where basic speculums were invented...

A Follow-up Longitudinal Survey on a Cohort of Undergraduate Medical Students’ Attitudes towards Radiology

As a follow-up to an earlier study comparing the attitudes of first year undergraduate medical students following the introduction of a new radiology curriculum...

Transthyretin amyloid cardiomyopathy: The emerging role of cardiac amyloid imaging

Transthyretin amyloidosis (or ATTR amyloidosis) is an under-recognised multisystemic disorder, arising from misfolding of transthyretin proteins into insoluble amyloid fibrils. As amyloid fibrils deposit...