A 49-year-old woman presented with mild pain in her lower abdomen and changes in bowel habits for 2 months. She also experienced 20kg of weight loss over 7 months. She previously had an intrauterine device (IUD) for 5 years, removed 2 years prior to presentation. Vital signs were stable, and no fever was noted. Physical examination revealed a palpable pelvic mass without rebound pain. Laboratory examinations showed leukocytosis (12,000/mm3 ), anaemia (haemoglobin, 5.1g/dL), elevated cancer antigen (CA)-125 (50.6U/mL), negative hepatitis B and hepatitis C serology, normal alpha-fetoprotein, and negative carcinoembryonic antigen. Sonography revealed 2 heterogeneous hypoechoic mass lesions in segment 8 of the liver measuring up to 7x4cm. Computed tomography (CT) (Fig. 1) and magnetic resonance imaging (MRI) (Fig 2) were performed for further analysis.
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