Adenomatoid Tumor

**Semantic type:** Neoplastic Process

**Definition:** A benign, well-circumscribed neoplasm arising from mesothelial cells. It is characterized by the formation of glandular and tubular patterns. It usually involves the paratesticular region, uterus, and fallopian tube. Rare cases involving the pleura, peritoneum, adrenal gland, and liver have also been reported.

**Synonyms:** - Adenomatoid Tumor, Benign - Adenomatoid tumor, NOS - Benign Localized Epithelial Mesothelioma - Benign Mesothelial Neoplasm - Benign Mesothelial Neoplasm - Benign Mesothelial Tumor - Benign Mesothelial Tumor - Benign Mesothelioma - Benign Mesothelioma - Benign Neoplasm of Mesothelium - Benign Neoplasm of the Mesothelium - Benign Tumor of Mesothelium - Benign Tumor of the Mesothelium - MESOTHELIOMA, BENIGN - Mesothelioma, Benign - Mesothelioma, benign