Case Presentation: A 32 year old Caucasian female with a fourteen year history of relapsing-remitting MS was admitted to the hospital for evaluation of severe headache, fatigue and dizziness. On physical exam she was tachycardic and very pale. Pertinent labs were as follows: hemoglobin (Hb) 4.1 mg/dL (baseline Hb 10.5 mg/dL), red cell distribution width [...]

Case Presentation: A 69 year old male presented with one week history of worsening delusional behavior and encephalopathy. His medical history included hepatitis C (in remission), hypertension, hyperlipidemia, and polysubstance abuse (cocaine, alcohol). Initial CT head revealed a hypodensity involving right temporal, parietal, and occipital lobes suggestive of acute infarction. Subsequent MRI brain revealed T2 [...]