A 28-year-old mother of two children reported to gynaecology OPD with history of gradual swelling of the abdomen for the last six months. She also gave history of increased frequency of micturation for the last two months. Menstrual cycles were regular with normal flow and duration. On examination her vitals were stable and systemic examination was within normal limits. Per abdomen examination showed a mass extending beyond the umbilicus about 28-30 weeks size of a gravid uterus Figure 1. It had a smooth margin, and was non-tender and cystic in nature. Per vaginum, groove sign was present but size of the uterus cannot be made as the mass was occupying whole of the pelvis. Ultra sonography showed a 19x20cm2 size unilocular cyst with no solid components and right ovary was not seen separately. Uterus and left ovary were normal. All biochemical and haematological investigations were within normal limits. Ca_(125) was marginally raised (51.2IU/mL). The RMI score of the patient was 51.2.
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