Head and Neck EBV-Associated Smooth Muscle Tumor

**Semantic type:** Neoplastic Process

**Definition:** A rare neoplasm of uncertain biological potential that arises from the head and neck. It is associated with EBV infection, exhibits smooth muscle differentiation, and occurs in immunocompromised patients. The most frequent sites of involvement are the larynx, oropharynx, and eye/orbit.

**Synonyms:** - Head and Neck Epstein-Barr Virus-Associated Smooth Muscle Neoplasm - Head and Neck Epstein-Barr Virus-Associated Smooth Muscle Tumor