title: MRI of an accessory semimembranosus muscle.
authors: Department of Radiology, State University of New York, Health Science Center at Brooklyn 11203.
authors: J M
authors: JM
authors: Stoane
authors: D H
authors: DH
authors: Gordon
mesh_terms: D000293:Adolescent; D006801:Humans; D007717:Knee / Q000473:pathology*; D008279:Magnetic Resonance Imaging; D008297:Male; D018482:Muscle, Skeletal / Q000002:abnormalities*