title: Knee pain in a 28-year-old man. Chondrosarcoma, grade II.
authors.affiliation: Department of Orthopaedic Surgery, Hospital of the University of Pennsylvania Philadelphia 19104.
authors.forename: S M
authors.initials: SM
authors.lastname: Horowitz
authors.forename: D A
authors.initials: DA
authors.lastname: Rubin
authors.forename: M K
authors.initials: MK
authors.lastname: Dalinka
authors.forename: F H
authors.initials: FH
authors.lastname: Gannon
mesh_terms: D000328:Adult; D001859:Bone Neoplasms / Q000150:complications / Q000175:diagnosis* / Q000601:surgery; D002813:Chondrosarcoma / Q000150:complications / Q000175:diagnosis* / Q000601:surgery; D003937:Diagnosis, Differential; D006801:Humans; D007717:Knee; D008297:Male; D010146:Pain / Q000209:etiology*