title: [Parotid cyst with branchiogenic part as remains of the first cleft and equivalent of a neck- ear-fistula (author's transl)].
abstract: Report on a rarity, consisting in the anatomic connexion of a parotid cyst with serous fluid and a congenital dysontogenesis near the ear. The latter will reduced to remains of the ectoderm of the first branchial cleft, remaining during the migration of the ear-"anlage" to the upper dorsal direction and interpreted as equivalent of a neck-ear-fistula. During embryogenesis apparently happens a collision between the remains of ectoderm and the ducts of the parotid-"anlage", developing from the buccal cavity. Clinical aspects, diagnosis, differential diagnosis and treatment were discussed. The management comprises exstirpation of the cyst after parotidectomy with preservation of the facial nerve.
mesh_terms: D000328:Adult; D001935:Branchioma / Q000601:surgery*; D003560:Cysts / Q000601:surgery*; D004476:Ectodermal Dysplasia / Q000175:diagnosis; D005260:Female; D006801:Humans; D010305:Parotid Diseases / Q000196:embryology* / Q000601:surgery; D010306:Parotid Gland / Q000601:surgery
vernacular_title: Parotiszyste mit branchiogenem Anteil als Relikt der 1. Kiemenfurche und Aquivalent einer Hals-Ohrfistel.