Definitions

Lip, Oral Cavity and Oropharynx
ICD-O-3 topography code:	C00-C06, C09-C10, C14

A rare, benign epithelial neoplasm with a uniform, monomorphic appearance that is dominated by basaloid cells with eosinophilic cytoplasms forming solid, trabecular,
tubular, or membranous patterns.

Salivary glands
ICD-O-3 topography code:	C07-C08

A rare, benign epithelial neoplasm with a uniform, monomorphic appearance that is dominated by basaloid cells with eosinophilic cytoplasms forming solid, trabecular,
tubular, or membranous patterns.

Prostate gland
ICD-O-3 topography code:	C61

A rare, benign epithelial neoplasm with a uniform, monomorphic appearance that is dominated by basaloid cells with eosinophilic cytoplasms forming solid, trabecular,
tubular, or membranous patterns.