Head and Neck Phosphaturic Mesenchymal Tumor

**Semantic type:** Neoplastic Process

**Definition:** A phosphaturic mesenchymal tumor that arises from the head and neck. It usually affects the paranasal sinuses. The head and neck region is the most frequently involved site for phosphaturic mesenchymal tumors, following the appendicular skeleton.

**Synonyms:** - Head and Neck PMT