6 results
Purpura - Differential Diagnosis Framework

Non-blanchable, dark red to purple, hemorrhagic skin lesions that result from leakage
Purpura - Differential ... to platelet disorders ... /Quantity: • Primary ... Diagnosis #hematology ... #rheumatology #
Diagnostic Framework for Hemolysis - Intravascular vs Extravascular Causes
Intravascular Hemolysis:
 • Mechanical Trauma (Microangiopathic hemolytic anemia):
purpura (TTP), ... usually IgM) (e.g. primary ... cold agglutin disease ... #Causes #differential ... #diagnosis #hematology
Causes of Thrombocytopenia and Platelet Disorders - Differential Diagnosis and Workup
History:
 - Prior platelet count, family
and Platelet Disorders ... (CVID, WAS), (neurologic ... hematologic disorder ... #Platelet #Disorders ... #hematology
Cold Agglutinin Disease

3 Types of Cold Sensitive Antibodies:
  1. Cold Agglutinins (CAD)
  2. Donath-Landsteiner
15% of AIHA Primary ... Agglutinin Disease ... younger pts) Differential ... the RBCs causing intravascular ... #anemia #hematology
Hemolytic Anemia - Differential Diagnosis Algorithm
 • Sickle cells - Consider sickle cell disease (diverse genotypes):
with or without platelet ... Agglutination - Cold agglutinins ... Schistocytes, thrombocytopenia ... Consider RBC membrane disorder ... #workup #hematology
Causes of Petechial Rash - Differential Diagnosis Algorithm

Pinpoint areas (less than 2 mm) of hemorrhage, which
Abnormalities in primary ... or secondary hemostasis ... : - Thrombocytopenia ... - Abnormal platelet ... deficiency Work