23 results
Autoimmune Hemolytic Anemia (AIHA) Pathophysiology - Warm vs Cold AIHA
Warm AIHA:
 - 70%; IgG mediated
 -
Autoimmune Hemolytic ... C3 positive or negative ... mediated - DAT: IgG negative ... Pathophysiology #diagnosis ... #hematology
Autoimmune Hemolytic Anemia (AIHA) - Differential Diagnosis Table

Warm AIHA (48-70%)
Cold AHA (16-32%)
 • Donath-Landsteiner HA (paroxysmal
Autoimmune Hemolytic ... - Differential Diagnosis ... AIHA (7-8%) DAT-negative ... #Differential #Diagnosis ... #Table #hematology
Expected DAT Results in Autoimmune Hemolysis
DAT Negative Hemolysis
 • DAT Poly ( - ), IgG (
DAT Results in Autoimmune ... Hemolysis DAT Negative ... antiglobulin #test #DAT #Autoimmune ... #Hemolysis #hematology ... #diagnosis
Warm vs Cold Autoimmune Hemolytic Anemia
Warm Autoimmune Hemolytic Anemia:
 • Mechanism: IgG and Complement-mediated
 • Etiology:
Warm vs Cold Autoimmune ... Hemolytic Anemia Warm Autoimmune ... Splenectomy Cold Autoimmune ... Hemolytic #Anemia #hematology ... #diagnosis #comparison
Summary of Coagulation Deficiencies
Inherited:
 • Hemophilia A - Deficiency of Factor VIII
 • Hemophilia B -
Viral hepatitis, Autoimmune ... - Malignancy, Autoimmune ... Summary #table #comparison ... #diagnosis #hematology
Connective tissue disease-associated interstitial lung diseases

LIP: lymphoid interstitial pneumonia. NSIP: nonspecific interstitial pneumonia. OP: organizing pneumonia.
LungDisease #CTILD #Diagnosis ... #Differential #Comparison ... #Table #Pulmonary ... #Rheumatology #
Rapidly Progressive Glomerulonephritis (RPGN)
RPGN has three primary pathophysiologic causes differentiated by immunofluorescence

Immune Complex Mediated (granular staining):
With associated pulmonary ... Pauci-immune mediated (Negative ... #differential #diagnosis ... #algorithm #rheumatology
Hodgkin's Lymphoma vs Non-Hodgkin's Lymphoma - Comparison

Hodgkin's Lymphoma:
 • Epidemiology: young adults 20-30, older 50-70
 •
Non-Hodgkin's Lymphoma - Comparison ... EBV infection, Autoimmune ... Pylori) - Autoimmune ... #oncology #diagnosis ... #differential #hematology
Cryofibrinogenemia Summary

Cryofibrinogenemia Epidemiology:
 • 40-70 years with a modest female predominance

Cryofibrinogenemia:
 • The precipitation of a
associated with autoimmune ... thrombophlebitis, pulmonary ... levels >1g/L • Negative ... #rheumatology # ... hematology
Inflammatory Myopathies
Dermatomyositis
 • Onset: Subacute
 • Pattern: Proximal
 • CK: Up to 50X ULN
 • Autoantibodies:
Associated Features: Diagnosis ... exclusion Necrotizing Autoimmune ... over years, often diagnosed ... #differential #diagnosis ... #comparison #rheumatology