Linfocitopenia T CD4+ idiopática: reporte de caso

We present the case of an elder man who was admitted for four months of left progressive hemiparesis with suspected neoplastic etiol-ogy. A stereotactic brain biopsy was performed with pathological findings of granulomatous le-sions and intracellular fungal structures compat-ible with histoplasma. Additionally, the patient previously had an orchidectomy because of a testicular mass with a biopsy showing a granu-lomatous lesion. The HIV test and the viral load were negative, the CD4+ lymphocyte count was below 300 cells/μl and a M. tuberculosis PCR on testicular biopsy was positive. We performed a new CD4+ lymphocyte count after six weeks of diagnosis that once again were below 300 cells/μl, confirming the clinical suspicion of idiopath-ic T CD4+ lymphocytopenia.