Filipa S*, Daniela M, Fernando C, João PM, Ana LA, Guilherme T and Paulo M
Ovarian sex cord-stromal tumours differ clinically and morphologically from epithelial tumours. A small number of cases are reported during pregnancy, making diagnosis difficult. We present a case of a 23-year-old healthy nulliparous woman with left-flank abdominal pain for 4 weeks associated with a 20-centimetre painless abdominal mass. Pregnancy had evolved normally until that point. Due to a rise in inflammatory parameters, the differential diagnosis first pointed to an infectious process. The absence of resolution with antibiotic therapy associated with the radiological aspects (consistent with a mesenteric, intestinal or ovarian tumour) required surgical investigation. A caesarean was performed at 34 weeks of gestation; excision of the tumour was carried out, the origin of which was extremely difficult to determine. Histological examination was the key to a definitive diagnosis and clinical follow-up.
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