Medulloepithelioma Not Otherwise Specified

**Semantic type:** Neoplastic Process

**Definition:** A rare, unilateral, benign or malignant embryonic neoplasm typically presenting as a cilliary body mass during childhood. It is composed of medullary epithelial cells.

**Synonyms:** - Medulloepithelioma, NOS - Medulloepithelioma, NOS