Introduction:
Granulosa cell tumours of the ovary (GCT) account for approximately 35% of all ovarian malignant tumours. They are divided into 2 subtypes: adult granulosa cell tumours (AGCT) and juvenile granulosa cell tumours (JGCT). AGCTs, are the more common type, accounting for approximately 95% of all cases they mainly present in peri- or postmenopausal women aged ≥40 years. They are usually asymptomatic but may present with menstrual problems. Ascites is a postmenopausal woman who is suggestive of the epithelial ovarian tumour as the first diagnosis. The presentation of AGCT as ascites is extremely rare. However, rarity does not rule out the diagnosis.
Case report:
A 57-year-old postmenopausal woman presented with massive abdominal distension and ascites. Her CA125 level was significantly raised. Abdominal MRI showed enlarged right ovary with prominent vascularity and a cyst within, gross ascites and omental thickening. With the working diagnosis of ovarian malignancy, staging laparotomy was performed. Surprisingly, histological and immunohistochemical results were suggestive of adult GCT.
Key words: ascites, ovarian tumour, granulosa cell tumour, treatment
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