Benign Peritoneal Mesothelioma, also known as mesothelioma of peritoneum, is related to sarcomatoid mesothelioma and lymphangioma. An important gene associated with Benign Peritoneal Mesothelioma is CALB2 (Calbindin 2), and among its related pathways/superpathways are Keratinization and COPI-independent Golgi-to-ER retrograde traffic. Related phenotypes are homeostasis/metabolism and growth/size/body region