Benign Cystic Mesothelioma of the Uterus: Myth or Reality?

Mesothelioma is a very rare tumor of mesodermal origin that covers the surface of body organs such as the peritoneum, pleura and pericardium. This tumour in the majority of cases presents in its malignant form where it represents some characteristics: increased cellularity, cytological atypia, papillary formations, even invasion. We report the case of Mrs AB, 37 years old, blood group A positive with no particular pathological history, nulli gesture nulli pare, consulted for pelvic pain and abdominal bloating. The clinical examination showed a distended bloated abdomen with a 20 centimetre pelvic mass with regular contours and painlessness. Abdominal and pelvic ultrasound showed a globular uterus increased in size by 200 millimetres with a multilocular cystic image intra myometrial (corporal anterior and fundial) of 188*79 millimetres. Intraoperatively, a globular uterus was found to be enlarged with a 15 centimetre parovascular cystic mass, dependent on the anterior aspect of the uterus, with a rock water fluid content, without any other associated abnormalities The postoperative course was simple. To conclude, Benign cystic mesothelioma of the uterus is a tumour of diagnostic value. This tumour is spleen. The preoperative evaluation allows the diagnosis to be suspected, especially by pelvic magnetic resonance imaging.