%0 Case Reports %T A case of histological diagnosis of Toxoplasma gondii myositis in a person living with HIV. %A De Benedetto I %A Biagini F %A Urbano G %A Mongini TE %A Cassetta I %A Scaglione L %A Curtoni A %A Calleri G %A Calcagno A %A De Rosa FG %A Corcione S %J Infez Med %V 31 %N 3 %D 2023 %M 37701394 暂无%R 10.53854/liim-3103-16 %X We report the case of a 58-year-old male with a recent diagnosis of HIV infection admitted for progressive muscular weakness and psychomotor impairment. Cerebrospinal examination documented a mild hyperproteinorrachia, with normal cells count and reduced glycorrhachia. Brain gadolinium-enhanced MRI showed bilateral T2 and FLAIR hyperintensities in the nucleo-capsular region and irregular contrast-enhancement of the globi pallidi and the right putamen. The histologic analysis of a quadriceps biopsy showed several foci of inflammatory infiltrates with concomitant muscular fiber atrophy and degeneration. Scattered intracytoplasmic inclusions were observed in muscle fibers, representing the main pathological feature. A positive PCR for Toxoplasma gondii and a Toxoplasma gondii specific monoclonal antibody immunohistochemical staining confirmed the diagnosis.