NCIt synonyms : Squamous Cell Carcinoma of the Pyriform Fossa; Epidermoid Carcinoma of Pyriform Sinus; Epidermoid Carcinoma of Pyriform Fossa; Pyriform Sinus Epidermoid Carcinoma; Epidermoid Carcinoma of the Pyriform Fossa; Squamous Cell Carcinoma of Pyriform Sinus; Squamous Cell Carcinoma of the Pyriform Sinus; Squamous Cell Carcinoma of Pyriform Fossa; Pyriform Sinus Squamous Cell Carcinoma; Pyriform Fossa Epidermoid Carcinoma; Epidermoid Carcinoma of the Pyriform Sinus;
NCIt definition : A squamous cell carcinoma that arises from the pyriform sinus. Patients usually present
with advanced stage disease and the prognosis is poor.;