Rad

Brain Lesion in HIV

search

Brain Lesion in HIV, Focal Brain Lesion in HIV, HIV-Related Focal Brain Lesion

  • Indication
  1. Approach to suspected Focal Brain Lesion in HIV patient
  1. Head CT Positive: Go to Step 2 below
  2. Head CT Negative
    1. Obtain more detailed imaging
      1. CT with double-dose contrast or
      2. MRI with gadolinium
    2. Interpretation of secondary imaging
      1. Positive: Go to Step 2 below
      2. Negative: Lumbar Puncture and treat per results
  • Step 2 Focal Lesion
  • Check contrast enhancement
  1. Positive Contrast Enhancement: Go to Step 3 below
  2. Negative for contrast enhancement
    1. Perform MRI with Contrast
    2. Interpret for contrast enhancement
      1. Positive: Go to step 3 below
      2. Negative: Obtain PCR for JC Virus
        1. Pos: Progressive Multifocal Leukoencephalopathy
        2. Neg: Consider LP, other studies
  • Step 3 Contrast Enhancing
  • Check for Mass Effect
  1. Positive: Neurosurgical consult
    1. Treat intracranial Hypertension
    2. Open biopsy with decompression
  2. Negative: Check ToxoplasmosisSerology
    1. Positive: Evaluate for effective therapy
    2. Negative: Obtain Epstein-Barr VirusSerology
      1. Positive: Evaluate with biopsy for Lymphoma
      2. Negative
        1. Single CNS Lesion: Biopsy
        2. Multiple CNS Lesions: Lumbar Puncture
  • References
  1. Weisberg (2001) South Med J 94:272 [PubMed]