Abstract
Free-floating peritoneal masses found during laparotomy should arouse a suspicion of benign multicystic peritoneal mesothelioma and they must be removed and subjected to histopathological examination and immunochemical staining to ascertain their benign nature. The objective of the study was to report a rare case of benign multicystic peritoneal mesotheliomas. We report an incidental finding of multiple free-floating peritoneal masses in a pregnant primigravida woman with a normal antenatal course who underwent a cesarean section in a rural hospital setting in India for fetal distress. The masses were removed from the peritoneal cavity during the surgery and subjected to histopathological examination and found to be benign multicystic peritoneal mesotheliomas. Immunohistochemistry of the cysts revealed that the mesothelial cells lining the cysts were positive for calretinin and WT1 and negative for CD31.
Highlights
Benign multicystic peritoneal mesotheliomas (BMPM)are rare accidental findings in a laparotomy procedure and are usually seen in young women of their reproductive age.[1]
We report this case because of its rarity and the accidental nature of finding them during a routine cesarean section in an asymptomatic patient and the need to recognize it as an obfuscating but benign lesion encountered during routine laparotomy
At the time of cesarean section, multiple free-floating masses of size 7 x 4 x 2 and 5 x 4 x 2 cm were seen in the peritoneum which were readily picked up, preserved, and sent for histopathological examination as they were a source of perplexity and concern to the operating surgeon
Summary
Free-floating peritoneal masses found during laparotomy should arouse a suspicion of benign multicystic peritoneal mesothelioma and they must be removed and subjected to histopathological examination and immunochemical staining to ascertain their benign nature. The objective of the study was to report a rare case of benign multicystic peritoneal mesotheliomas. We report an incidental finding of multiple free-floating peritoneal masses in a pregnant primigravida woman with a normal antenatal course who underwent a cesarean section in a rural hospital setting in India for fetal distress. The masses were removed from the peritoneal cavity during the surgery and subjected to histopathological examination and found to be benign multicystic peritoneal mesotheliomas. Immunohistochemistry of the cysts revealed that the mesothelial cells lining the cysts were positive for calretinin and WT1 and negative for CD31.
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