title: Unilateral agenesis of the sternocleidomastoid muscle.
abstract: An eight-year-old girl with an asymmetrical appearance of the neck is presented. Physical examination and ultrasonographic (USG) findings revealed the absence of the patient's right sternocleidomastoid muscle.
authors.affiliation: Department of Pediatrics, Hacettepe University Faculty of Medicine, Ankara, Turkey.
authors.forename: G
authors.initials: G
authors.lastname: Koçak
authors.forename: S
authors.initials: S
authors.lastname: Aysun
authors.forename: O
authors.initials: O
authors.lastname: Akhan
mesh_terms: D002648:Child; D005260:Female; D006801:Humans; D009334:Neck Muscles / Q000002:abnormalities* / Q000000981:diagnostic imaging; D012135:Respiratory Sounds / Q000209:etiology; D014463:Ultrasonography