摘要:: This paper shows the results of a retrospective observational analytical study that has enrolled 166 HIV positive patients diagnosed with a neurological complication between June 2012 and June 2020, in Clinical Infectious Diseases Hospital of Constanta. 119 patients (71,69%) were diagnosed with one of the three neurological complications: HIV associated dementia (HAD), Progressive Multifocal Leukoencephalopathy (PML) and CNS Toxoplasmosis (CT). We have noted CD4 levels, viral loads, and the presence/absence of other infections like: HBV, HCV, Treponema pallidum, Mycobacterium Tuberculosis.