12 results
Cold Agglutinin Disease

3 Types of Cold Sensitive Antibodies:
  1. Cold Agglutinins (CAD)
  2. Donath-Landsteiner
Disease (CAD): ... Secondary Cold ... Agglutinin Syndrome ... anemiaCold ... #hematology #diagnosis
Purpura - Differential Diagnosis Framework

Non-blanchable, dark red to purple, hemorrhagic skin lesions that result from leakage
Purpura - Differential ... - Hemolytic anemia ... #Diagnosis #hematology ... #rheumatology # ... #nonpalpable #dermatology
Causes of Thrombocytopenia and Platelet Disorders - Differential Diagnosis and Workup
History:
 - Prior platelet count, family
Diagnosis and Workup ... IgA, IgG, IgM (CVID ... changes), high MCV anemia ... Diagnosis #Causes ... #Workup #hematology
Pruritus - Generalized Differential Diagnosis Algorithm - Systemic and Primary Causes
== Primary Skin Lesions ==
Macules /
Differential Diagnosis ... Myelodisplastic syndrome ... #primary #secondary ... #generalized #dermatology ... Diagnosis #Algorithm
Hemolytic Anemia - Differential Diagnosis Algorithm
 • Sickle cells - Consider sickle cell disease (diverse genotypes):
Diagnosis Algorithm ... Agglutination - Cold ... agglutinins disease ... Diagnosis #Algorithm ... #workup #hematology
Diagnostic Framework for Hemolysis - Intravascular vs Extravascular Causes
Intravascular Hemolysis:
 • Mechanical Trauma (Microangiopathic hemolytic anemia):
Diagnostic Framework ... agglutin disease ... lymphoproliferative disorders ... #differential # ... diagnosis #hematology
Pruritus - No Primary Skin Lesion - Differential Diagnosis Algorithm

Blood Glucose:
 • Diabetes Mellitus
Liver Function Tests/Enzymes:
Diagnosis Algorithm ... #secondary #systemic ... #generalized #dermatology ... Diagnosis #Algorithm ... #causes
Nail Disorders secondary to Systemic Diseases
Nail Fold Abnormality
 • SLE
 • Scleroderma
 • Dermatomyositis
Koilonychia - Spoon-shaped
Nail Disorders secondary ... • Nephrotic syndrome ... #dermatology #Differential ... #Diagnosis #Algorithm ... #causes
Common Variable Immunodeficiency (CVID)

What?
CVID: Immunodeficiency disorder with hypogammaglobulinemia -> increased infection risk secondary to impaired B-cell
disorder with hypogammaglobulinemia ... infection risk secondary ... DDX - Other causes ... hypogammaglobulinemia #immunology #hematology ... #diagnosis #management
Cryofibrinogenemia Summary

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

Cryofibrinogenemia:
 • The precipitation of a
• Painful or pruritic ... cryoglobulins • Negative causes ... Antiphospholipid syndrome ... #rheumatology # ... hematology