Supraglottis Squamous Cell Carcinoma, also known as epidermoid carcinoma of the supraglottis, is related to gastric ulcer and pleomorphic adenoma. An important gene associated with Supraglottis Squamous Cell Carcinoma is NOS2 (Nitric Oxide Synthase 2), and among its related pathways/superpathways are PI3K-Akt signaling pathway and Immune response IL-23 signaling pathway.