nasal dorsum fistula/cyst https://github.com/monarch-initiative/mondo/issues/5963 https://www.malacards.org/card/nasal_dorsum_fistula Orphanet:141219 MEDGEN:573381 A rare otorhinolaryngologic disease characterized by the presence of a dermoid cyst, located on the dorsum of the nose, which presents a fistula, often extending to the intracranial region. Patients present a firm, slow-growing mass, which contains skin and dermal elements (including hair follicles and sebaceous glands), that do not transilluminate or compress, and may be associated with intermittent or chronic discharge of sebaceous material, soft tissue and skeletal deformity, and local infection. Meningitis, convulsions and cerebral abscess may be observed if intracranial extension exists. GARD:0019963 UMLS:C0339853 MONDO:0015410 cysts and fistulae of the face and oral cavity