13 results
hemolysis algorithm extravascular intravascular oncology antibody classification cold common cvid disease gap globulin hodgkins hypogammaglobulinemia immunodeficiency immunology lymphoma monoclonal pancytopenia
Diagnostic Framework for Hemolysis - Intravascular vs Extravascular Causes Intravascular Hemolysis: • Mechanical Trauma (Microangiopathic hemolytic anemia):
Diagnostic Framework ... anemia): ... . primary cold agglutin ... #differential # ... diagnosis #hematology
Warm Antibody Autoimmune Hemolytic Anemia 1) DIAGNOSE AIHA • Anemia: macrocytic > normocytic, ↑ reticulocytes •
Hemolytic Anemia ... 2) LOOK FOR a cause ... #Hemolytic #Anemia ... #diagnosis #management ... #treatment #rheumatology
Hemolytic Anemia - Differential Diagnosis Algorithm • Sickle cells - Consider sickle cell disease (diverse genotypes):
Hemolytic Anemia ... Agglutination - Cold agglutinins ... elliptocytosis, autoimmune ... #Anemia #Differential ... #workup #hematology
Cold Agglutinin Disease 3 Types of Cold Sensitive Antibodies: 1. Cold Agglutinins (CAD) 2. Donath-Landsteiner
Syndrome (CAS): ... Diagnosis: • hemolytic ... Blood smear - RBC ... younger pts) Differential ... #anemia #hematology
Causes of Extravascular and Intravascular Hemolysis - Differential Diagnosis Algorithm Extravascular - Spleen and RES-mediated hemolysis -
Causes of Extravascular ... - Differential ... Diagnosis Algorithm ... anemia • ... #Causes #Hematology
Pancytopenia - Differential Diagnosis Congenital Diseases: • GATA2 deficiency • Fanconi’s anemia • Wiskott-Aldrich syndrome • Ribosomopathy or telomeropathy Cancer: • Leukemia • Lymphoma Inflammatory
deficiency • Fanconi’s anemia ... Wiskott-Aldrich syndrome ... Inflammatory and Autoimmune ... Diseases: • Systemic ... #Diagnosis #Hematology
Causes of Thrombocytosis - Differential Diagnosis Secondary Thrombocytosis (a.k.a Reactive Thrombocytosis): • Acute infection • Solid organ
malignancies • Anemia ... iron deficiency, hemolysis ... disorders (e.g. autoimmune ... #Diagnosis #Causes ... #hematology #secondary
Hemolysis - Differential Diagnosis Framework 1) Environment - Fragmentation - MAHA: TTP, HUS, DIC, HELLP
Hemolysis - Differential ... Membrane): - Autoimmune ... Drug-associated, PCH, Evans Syndrome ... Defects: Sickle cell anemia ... Diagnosis #hematology
TTP - Laboratory Evaluation for Thrombotic Thrombocytopenic Purpura Activity of von Willebrand factor-cleaving protease activity - A
result in severe anemia ... anemia Indirect ... from ischemia WBC ... count and differential ... #Workup #Hematology
Common Variable Immunodeficiency (CVID) What? CVID: Immunodeficiency disorder with hypogammaglobulinemia -> increased infection risk secondary to impaired B-cell
hemolytic anemia ... ) • Systemic granulomatous ... DDX - Other causes ... hypogammaglobulinemia #immunology #hematology ... #diagnosis #management
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