title: Painless unilateral calf mass in a 14-year-old girl.
authors.affiliation: University of Pennsylvania School of Medicine, Philadelphia, PA, USA.
authors.forename: Ali
authors.initials: A
authors.lastname: Behbahani
authors.forename: Alexandre
authors.initials: A
authors.lastname: Arkader
authors.forename: Jeffrey A
authors.initials: JA
authors.lastname: Golden
authors.forename: John P
authors.initials: JP
authors.lastname: Dormans
mesh_terms: D000293:Adolescent; D003937:Diagnosis, Differential; D005260:Female; D006801:Humans; D007866:Leg; D008279:Magnetic Resonance Imaging; D009220:Myositis / Q000175:diagnosis* / Q000473:pathology; D010808:Physical Examination