title: Malignant Fibrohisticytoma of the Knee in a Patient with HIV.
abstract: This case report describes a patient presenting with anterior knee pain (extensor mechanism pain), a poorly studied complaint in the HIV population. The final diagnosis was malignant fibrohistiocytoma, a rare condition among knee pathologies, successfully treated with endoprosthesis after tumor resection. This article focuses on what the authors learned after treating this patient, particularly on the difficulty in making a correct diagnosis of this group of patients due to lack of adequate epidemiological characterization. By assuming that the pathology was related to long-term infection and treatment of HIV (knee hoffitis), the authors underestimated the gravity of the case, almost compromising the result of treatment.
authors: Department of Orthopedics and Traumatology, University of São Paulo (SP), Brazil.
authors: Riccardo Gomes
authors: RG
authors: Gobbi
authors: Daniel Sequel
authors: DS
authors: Rebolledo
authors: Ana Lúcia Munhoz
authors: AL
authors: Lima
authors: Alexandre Leme Godoy
authors: AL
authors: Dos Santos
keywords: HIV infections; Knee; Lipodystrophy; Sarcoma