title: [Chronic monoarthritis caused by osteoid osteoma].
abstract: Osteoid osteoma is a nonmalignant tumour that rarely localizes intraarticularly. When this happens, the tumour provokes arthritis and its recognition is delayed from months to years. We report the case of a 34 year old man with a previously known HIV infection, but no evidence of immunosuppression. He develops a chronic monoarthritis of the left elbow that is initially interpreted as infectious disease. CT provides diagnostic suspicion of osteoma, that is confirmed by pathologic examination two years after the onset of the clinical complaints. CT is the radiologic technique of election in the evaluation of osteoid osteoma. Synovitis is interpreted in the literature as secondary to prostaglandin secretion by the tumour.
authors.affiliation: Sección de Reumatología, Hospital de Basurto, Bilbao.
authors.forename: M L
authors.initials: ML
authors.lastname: García-Vivar
authors.forename: E
authors.initials: E
authors.lastname: Galindez
authors.forename: J
authors.initials: J
authors.lastname: Aróstegui
authors.forename: F
authors.initials: F
authors.lastname: García Llorente
authors.forename: E
authors.initials: E
authors.lastname: Uriarte
authors.forename: J M
authors.initials: JM
authors.lastname: Aramburu
mesh_terms: D000163:Acquired Immunodeficiency Syndrome / Q000150:complications; D000328:Adult; D001859:Bone Neoplasms / Q000150:complications* / Q000175:diagnosis / Q000601:surgery; D002908:Chronic Disease; D004551:Elbow Joint; D006801:Humans; D008297:Male; D010017:Osteoma, Osteoid / Q000150:complications* / Q000175:diagnosis / Q000601:surgery; D015819:Substance Abuse, Intravenous / Q000150:complications; D013585:Synovitis / Q000209:etiology*; D014457:Ulna / Q000601:surgery
vernacular_title: Monoartritis crónica por osteoma osteoide.