Sarcomatoid mesothelioma is not very common, mesothelioma is directly attributable to occupational asbestos exposure, with 90% of cases showing a history of exposure. A 66-year-old male was admitted with an abdominal pain that persisted for 3 weeks. He had no abdominal mass. Computed tomography showed soft tissue thickening in perihepatic space and nodularities in omentum and peritoneum with ascites. There was no absolute diagnosis evidence in ascites analysis. Although the pathology of ascites was free for malignancy, the patient underwent omentum biopsy for definitive diagnosis. In laproscopic exploration, there was omental cake, peritoneal nodular seeding. It was suspected cancer carcinomatosis. Immunohistochemical findings suggested that it was sarcomatoid masothelioma. This is the rare case of a peritoneal sarcomatoid mesothelioma, without any exposure to asbestos.

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• Sarcomatoid malignant peritoneal mesothelioma presenting as a localized mesenteric tumor with no previous asbestos exposure
  Yves Alain Notue, Ulrich Igor Mbessoh, Grace Nganwa, Judith Ngo Pambe, Alain Chichom Mefire, Boniface Moifo, Zacharie Sando
  Journal of Surgical Case Reports.2020;[Epub]     CrossRef