title: Primary malignant mesenchymoma of bone: case report, literature review, and distinction of this entity from mesenchymal and dedifferentiated chondrosarcoma.
abstract: The seventh case of primary malignant mesenchymoma of bone is reported. It is compared to the other six cases in the literature and clinicopathologic pattern of this entity is developed. Primary malignant mesenchymoma of bone is compared to mesenchymal chondrosarcoma and dedifferentiated chondrosarcoma. Differences as well as similarities are discussed and a more current classification scheme for malignant mesenchymoma of bone is proposed.
authors.affiliation: Department of Pathology, Oregon Health Sciences University, Portland, 97201, USA.
authors.forename: S
authors.initials: S
authors.lastname: Kessler
authors.forename: J M
authors.initials: JM
authors.lastname: Mirra
authors.forename: T
authors.initials: T
authors.lastname: Ishii
authors.forename: J C
authors.initials: JC
authors.lastname: Thompson
authors.forename: E W
authors.initials: EW
authors.lastname: Brien
mesh_terms: D001859:Bone Neoplasms / Q000175:diagnosis* / Q000453:epidemiology / Q000628:therapy; D002813:Chondrosarcoma / Q000175:diagnosis*; D018211:Chondrosarcoma, Mesenchymal / Q000175:diagnosis*; D003131:Combined Modality Therapy; D003937:Diagnosis, Differential; D006801:Humans; D006811:Humerus / Q000000981:diagnostic imaging / Q000473:pathology; D008297:Male; D008637:Mesenchymoma / Q000175:diagnosis* / Q000453:epidemiology / Q000628:therapy; D008875:Middle Aged; D011859:Radiography