This case illustrates the difficult differential diagnosis between this type of tumor and mesothelioma, in special of the surface of the ovary and the pelvic peritoneum. Both tumors may exhibit windows between the cells, and microvilli in their surface. There is no immunochemistry test of real value, and the only certainty is done by the surgical exploration, as done in this case, where the pelvic peritoneum was free of disease, and the ovary had a typical serous cystadenocarcinoma papillary tumor. Their coelomic epithelial common origin explains their extreme similarities. Sometimes they both have ciliated cells besides microvilli in their surface. |
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