TY - JOUR TI - Primary malignant mesothelioma of the peritoneum: a clinical and immunohistochemical study AU - Markaki, S AU - Protopapas, A AU - Milingos, S AU - Lazaris, D and AU - Antsaklis, A AU - Michalas, S JO - Gynecologic Oncology PY - 2005 VL - 96 TODO - 3 SP - 860-864 PB - ACADEMIC PRESS INC ELSEVIER SCIENCE SN - 0090-8258, 1095-6859 TODO - 10.1016/j.ygyno.2004.11.014 TODO - malignant mesothelioma; peritoneum; immunohistochemistry TODO - Background. Primary peritoneal mesothelioma is regarded as a fatal disease that presents with progressive ascites at a relatively late stage of its natural history. Differential diagnosis between this rare tumor and both serous papillary carcinoma of the peritoneum and ovary can be problematic. Case. A 54-year-old woman presented to our institution with a 4-month history of dull epigastric pain and increased abdominal girth. Exploratory laparotomy revealed the presence of extensive intraperitoneal dissemination of a malignant neoplasm without a recognizable primary site. Suboptimal cytoreduction was carried out, and histological diagnosis was that of a malignant epithelioid mesothelioma. This was confirmed with a panel of immunohistochemical markers. The patient despite having a complete response after adjuvant chemotherapy died 18 months after primary surgery. Conclusion. No single immunohistochemical stain is pathognomonic of peritoneal primary malignant mesothelioma (PMM), and the results of a panel of antibodies should be interpreted to set the diagnosis. (c) 2004 Published by Elsevier Inc. ER -