Pyriform Fossa Squamous Cell Carcinoma

**Semantic type:** Neoplastic Process

**Definition:** A squamous cell carcinoma that arises from the pyriform sinus. Patients usually present with advanced stage disease and the prognosis is poor.

**Synonyms:** - Epidermoid Carcinoma of Pyriform Fossa - Epidermoid Carcinoma of Pyriform Sinus - Epidermoid Carcinoma of the Pyriform Fossa - Epidermoid Carcinoma of the Pyriform Sinus - Pyriform Fossa Epidermoid Carcinoma - Pyriform Sinus Epidermoid Carcinoma - Pyriform Sinus Squamous Cell Carcinoma - Squamous Cell Carcinoma of Pyriform Fossa - Squamous Cell Carcinoma of Pyriform Sinus - Squamous Cell Carcinoma of the Pyriform Fossa - Squamous Cell Carcinoma of the Pyriform Sinus