Primary Intraosseous Squamous Cell Carcinoma-Solid Type

**Semantic type:** Neoplastic Process

**Definition:** A non-keratinizing or keratinizing squamous cell carcinoma that arises centrally from the jaw. It is characterized by a solid pattern, infiltration of the marrow spaces, and osseous resorption.

**Synonyms:** - Primary Intraosseous Squamous Cell Carcinoma Arising De Novo