4 results
Idiopathic CD4 Lymphopenia (ICL) / Lymphocytopenia 

DIAGNOSTIC CRITERIA FOR ICL
 • Persistent CD4 T-cell lymphopenia
 •
Lymphocytopenia DIAGNOSTIC ... T-cell count of 300 cells ... • Infections - HIV ... Lymphopenia #ICL #diagnosis ... #hematology #Differential
Rickettsialpox Eschar

40 homeless male from NY admitted with fever, chills, headache, myalgias. Diagnosis?
Rickettsialpox R akari classic
Diagnosis? ... triad of fever, vesiclar ... not endothelial cells ... rakari #clinical #photo ... #skinrash #dermatology
Cold Agglutinin Disease

3 Types of Cold Sensitive Antibodies:
  1. Cold Agglutinins (CAD)
  2. Donath-Landsteiner
Agglutination in the nose, ears ... hemolysis • C3↓ C4 ... Mycoplasma, EBV, HIV ... younger pts) Differential ... hemolytic #anemia #hematology
Vasculitis - Differential Diagnosis Framework

When to Consider Vasculitis:
• Purpura, ischemic skin lesions
• Mononeuritis multiplex
• Hematuria, proteinuria,
Diagnosis Framework ... HTN • Check: HBV ... legs), cutaneous vesicles ... well as inner ear ... #Diagnosis #Rheumatology