An epithelial neoplasm of the anterior pituitary gland in which the neoplastic cells do not stain with acidic or basic dyes. The disease is chromophobe adenoma (Monarch Disease Ontology identifier MONDO_0006701). Also known as: chromophobe adenoma of pituitary gland, chromophobe adenoma of the pituitary gland, pituitary chromophobe adenoma, pituitary gland chromophobe adenoma.