BENIGN papilloma of the peritoneum is a rare lesion, seldom noted except incidental to laparotomy or to postmortem examination. In fact, it is improbable that a diagnosis of this lesion can be made except by direct visualization of the peritoneum.
A review of the literature reveals confusion with regard to this tumor and the more commonly reported mesothelioma of the peritoneum to which it bears a poorly understood relationship. So far as can be reasonably determined, this lesion was first recognized by Wells,1 in 1935, who described the tumor as a benign, branching villous papilloma. The lesion was noted as an incidental finding at autopsy of a 79-year-old man whose death was secondary to suprapubic prostatectomy. Wells found this tumor to consist of numerous villous processes, covered by cuboidal cells continuous with the mesothelium of the peritoneum; the stoma was coarse, composed of connective tissue, and multiple lesions were
BACON HE, LOWELL EJ, AEGERTER EE, TRIMPI HD. BENIGN PAPILLOMA OF THE PERITONEUMReport of a Case (Incident to Surgery for Removal of Adenomatous Polyp of the Sigmoid Colon) and Review of the Literature. AMA Arch Surg. 1952;65(6):849-853. doi:10.1001/archsurg.1952.01260020843007