Florid Tubulopapillary Mesothelial Hyperplasia: A Lesion Mistaken for Carcinoma—a Case Report

Mesothelial surface injury is often followed by the vascular events of inflammation and shortly thereafter the exfoliation of mesothelial cells. Persistence of this injury ultimately leads to mesothelial hyperplasia. The separation of mesothelial hyperplasia from early malignant mesothelioma and adenocarcinoma remains one of the most difficult problems in histopathology. A case of mesothelial hyperplasia that was misinterpreted as papillary carcinoma is presented. (J GYNECOL SURG 21:25)