Paratesticular Endometrioid Tumor

**Semantic type:** Neoplastic Process

**Definition:** A group of very rare tumors with endometrioid epithelial differentiation arising from the paratesticular structures. It includes benign tumors, borderline tumors (tumors with atypical epithelial proliferation), and malignant tumors (endometrioid adenocarcinomas).

**Synonyms:** - Testicular Adnexa Endometrioid Tumor