what is a comedo naevus
, comedo nevus (nÄ'vÅ­s kom'Ä-dÅ-nÄ«'kÅ­s, kom'Ä-dÅ). Congenital or childhood linear keratinous cystic invaginations of the epidermis, with failure of development of normal pilosebaceous follicles. comedo nevus (nÄ'vÅ­s kom'Ä-dÅ-nÄ«'kÅ­s, kom'Ä-dÅ). Congenital or childhood linear keratinous cystic invaginations of the epidermis, with failure of development of normal pilosebaceous follicles.