title: Ewing's sarcoma of the ilium presenting as unilateral sacroiliitis.
abstract: We describe a 24-year-old man who presented with unilateral sacroiliac pain associated with constitutional symptoms. Subsequent biopsy and pathohistologic evaluation demonstrated Ewing's sarcoma. We emphasize a consideration of Ewing's sarcoma in the differential diagnosis of unilateral sacroiliac pain.
authors.affiliation: Department of Internal Medicine, University of South Florida, College of Medicine, Tampa 33612.
authors.forename: H M
authors.initials: HM
authors.lastname: Adelman
authors.forename: P M
authors.initials: PM
authors.lastname: Wallach
authors.forename: M T
authors.initials: MT
authors.lastname: Flannery
mesh_terms: D000328:Adult; D001168:Arthritis / Q000175:diagnosis*; D001416:Back Pain / Q000175:diagnosis; D001706:Biopsy; D001859:Bone Neoplasms / Q000175:diagnosis* / Q000000981:diagnostic imaging; D003937:Diagnosis, Differential; D006801:Humans; D007085:Ilium / Q000000981:diagnostic imaging / Q000473:pathology; D008297:Male; D011859:Radiography; D012446:Sacroiliac Joint; D012512:Sarcoma, Ewing / Q000175:diagnosis* / Q000000981:diagnostic imaging