External Ear Squamous Cell Carcinoma, also known as epidermoid carcinoma of the external ear, is related to otopalatodigital syndrome, type i and brain stem glioma. An important gene associated with External Ear Squamous Cell Carcinoma is CUL2 (Cullin 2), and among its related pathways/superpathways are Cell Cycle, Mitotic and Cellular responses to stimuli. Affiliated tissues include external ear.