| 释义 |
branchial cleft cyst
bran·chi·al cysta cervical cyst arising from developmental persistence of an ectodermal pharyngeal groove, usually the second. It is frequently located anterior to the inferior third of the sternocleidomastoid muscle. Synonym(s): branchial cleft cystbranchial cleft cyst A benign developmental cyst arising from the persistence of ectodermal branchial cleft (groove) or endodermal pharyngeal pouches. Management Surgical excision if needed.branchial cleft cyst Branchial cyst A cyst-like embryologic rest–remnant present at birth, which arises from branchial clefts, usually the 2nd, at the end of the trachea and branch into the lungs; BCCs often present as asymptomatic unilateral fluctuant masses posteroinferior to the angle of the jaw and anterior to the sternocleidomastoid muscle; it is characterized by having cartilage as part of the supporting wall structure; BCCs may not be recognized until adolescence when enlarged; BCCs may develop a sinus or drainage path to the skin surface from which mucus can be expressed Management Total surgical excision; recurrence is rare |