15 results
Diagnostic Framework for Hemolysis - Intravascular vs Extravascular Causes
Intravascular Hemolysis:
 • Mechanical Trauma (Microangiopathic hemolytic anemia):
Extravascular Causes ... hemoglobinuria (PNH ... idiopathic) - Autoimmune ... Extravascular #Causes ... differential #diagnosis #hematology
Causes of Extravascular and Intravascular Hemolysis - Differential Diagnosis Algorithm
Extravascular - Spleen and RES-mediated hemolysis
 -
Causes of Extravascular ... Cold AIHA • Alloimmune ... • PCH • PNH ... Diagnosis #Algorithm #Causes ... #Hematology
Autoimmune Hemolytic Anemia (AIHA) - Differential Diagnosis Table

Warm AIHA (48-70%)
Cold AHA (16-32%)
 • Donath-Landsteiner HA (paroxysmal
Autoimmune Hemolytic ... Differential Diagnosis Table ... MatthewHoMD #Autoimmune ... #Hemolytic #Anemia ... #hematology
Causes of Thrombocytosis - Differential Diagnosis
Secondary Thrombocytosis (a.k.a Reactive Thrombocytosis):
 • Acute infection
 • Solid organ
Causes of Thrombocytosis ... iron deficiency, hemolysis ... disorders (e.g. autoimmune ... Differential #Diagnosis #Causes ... #hematology #secondary
Hemolysis - Differential Diagnosis Framework

1) Environment
  - Fragmentation
  - MAHA: TTP, HUS, DIC, HELLP
Hemolysis - Differential ... Membrane): - Autoimmune ... Liver Disease, PNH ... Urobilinogen #Hemolysis ... Differential #Diagnosis #hematology
Algorithmic Approach to Anemia - Differential Diagnosis Framework by MCV

Microcytic (MCV < 80) "TAILS":
 • Thalassemia
-100): • Non-hemolytic ... anemia, CKD • Hemolytic ... PK, HbC, HbSS, PNH ... - Extrinsic: Autoimmune ... Differential #Diagnosis #hematology
Hemolytic Anemia - Differential Diagnosis Algorithm
 • Sickle cells - Consider sickle cell disease (diverse genotypes):
Hemolytic Anemia ... platelet decrease - PNH ... elliptocytosis, autoimmune ... @ARUPLabs #Hemolytic ... Algorithm #workup #hematology
Purpura - Differential Diagnosis Framework

Non-blanchable, dark red to purple, hemorrhagic skin lesions that result from leakage
• Secondary Causes ... DIC/TTP/HUS - Hemolytic ... deficiencies - PNH ... Differential #Diagnosis #hematology ... #rheumatology #
Thrombocytopenia and Pregnancy
Three syndromes in the critically ill pregnant woman who presents with coagulation defects.
1) HELLP
defects. 1) HELLP (Hemolysis ... child * Severe cases ... Obstetrics #OBGyn #Hematology ... Diagnosis #Comparison #Table
Cold Agglutinin Disease

3 Types of Cold Sensitive Antibodies:
  1. Cold Agglutinins (CAD)
  2. Donath-Landsteiner
Viral infection, autoimmune ... influenza (younger pts ... CLL (older) • Autoimmune ... disease (younger pts ... #anemia #hematology