label: obsolete disorder of peritoneum
label_lc: obsolete disorder of peritoneum
description: "OBSOLETE. A non-neoplastic or neoplastic disorder that affects the peritoneal cavity. Representative examples of non-neoplastic disorders include peritonitis and panniculitis. Representative examples of neoplastic disorders include adenomatoid tumor, primary peritoneal carcinoma, metastatic carcinoma to the peritoneum, and malignant mesothelioma."