title: The third head of gastrocnemius in CT images.
abstract: A 17 year old male patient was undergoing a CT scan for pain and swelling of the left knee. The CT images of both legs, taken simultaneously, revealed an asymmetry of the musculature in the popliteal fossa of the right leg. Serial images indicated the presence of a third head joining the medial head of gastrocnemius.
authors.affiliation: Department of Anatomy, University of Iowa College of Medicine, Iowa City 52242, USA.
authors.forename: R A
authors.initials: RA
authors.lastname: Bergman
authors.forename: C W
authors.initials: CW
authors.lastname: Walker
authors.forename: G Y
authors.initials: GY
authors.lastname: el-Khour
mesh_terms: D000293:Adolescent; D050723:Fractures, Bone / Q000503:physiopathology; D006801:Humans; D007719:Knee Joint; D008297:Male; D018482:Muscle, Skeletal / Q000033:anatomy & histology* / Q000000981:diagnostic imaging*; D010146:Pain; D010329:Patella / Q000293:injuries*; D013710:Tendons / Q000033:anatomy & histology / Q000000981:diagnostic imaging; D014057:Tomography, X-Ray Computed