Locally Advanced Sinonasal Squamous Cell Carcinoma

**Semantic type:** Neoplastic Process

**Definition:** A squamous cell carcinoma that arises from the nasal cavity and/or paranasal sinuses and has spread from its original site of growth to nearby tissues or lymph nodes.

**Synonyms:** - Locally Advanced Nasal Cavity and Paranasal Sinus Squamous Cell Carcinoma - Locally Advanced Nasal Cavity and Paranasal Sinus Squamous Cell Carcinoma - Locally Advanced Squamous Cell Carcinoma of the Nasal Cavity and Paranasal Sinus - Locally Advanced Squamous Cell Carcinoma of the Nasal Cavity and/or Paranasal Sinuses