Pathology and Classification of Peritoneal Surface Malignancies.

Peritoneal surface malignancies are rare and represent a diverse group of neoplasms associated with poor prognosis. We review board classification of the primary and secondary peritoneal neoplasms with emphasis on the pathology and recent updates and challenges in the areas of mesothelial neoplasms, peritoneal metastasis, and pseudomyxoma peritonei.