15 results
Antinuclear Antibodies (ANA)
ANA or Anti-NucIear Antibody refers to antibodies against antigens in the nucleus → like
Antinuclear Antibodies ... SLE), Sjogren's Syndrome ... (SS), Polymyositis ... Arthritis, Sjögren Syndrome ... #patterns #rheumatology
ANA Patterns and Associated Rheumatic Diseases:
 • Homogeneous: Systemic lupus erythematosus (SLE), Mixed connective tissue disease
ANA Patterns and ... SLE), Sjogren's Syndrome ... Kumfer @AnnKumfer #Antinuclear ... #Antibodies #ANA ... #patterns #rheumatology
Causes of Thrombocytopenia - Differential Diagnosis Algorithm
 
Decreased Megakaryopoiesis
 • Aplastic Anemia
 • Toxic Damage (e.g.
Megakaryopoiesis • Aplastic Anemia ... methotrexate) • Drugs Autoimmune ... • anti-HLA antibodies ... Non-lmmune: • HELLP Syndrome ... Algorithm #Causes #Hematology
Antinuclear antibodies and Systemic lupus
Anti-dsDNA	60-80%	Association with disease activity (when with Farr assay) and lupus nephritis. Can
Antinuclear antibodies ... 30-40% Target: SS-A ... SLE-SSc-AlM overlap syndromes ... Lupusreference #Antinuclear ... erythematosus #diagnosis #rheumatology
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 lupus ... Differential #Diagnosis #Hematology
ANA (Antinuclear Antibody) and ANCA (Antineutrophil cytoplasmic antibodies)
 • Systemic lupus erythematosus
   1. Anti-dsDNA
ANA (Antinuclear ... Antineutrophil cytoplasmic antibodies ... ) • Systemic lupus ... cases • Sjögren syndrome ... #diagnosis #rheumatology
Diagnostic Framework for Hemolysis - Intravascular vs Extravascular Causes
Intravascular Hemolysis:
 • Mechanical Trauma (Microangiopathic hemolytic anemia):
) - HELLP syndrome ... Hemolytic uremic syndrome ... usually IgG) (e.g. lupus ... differential #diagnosis #hematology ... #anemia
Causes of Petechial Rash - Differential Diagnosis Algorithm

Pinpoint areas (less than 2 mm) of hemorrhage, which
Palpable Rash: - Autoimmune ... Vasculitis (lupus ... Measurement of antinuclear ... antibodies, antineutrophil ... cytoplasmic antibodies
SLE (Systemic Lupus Erythematosus)

Suspect:
Clinical evidence of (fatigue, rash, photosensitivity, inflammatory arthritis, weight loss, and fever) and
disease • Non-autoimmune ... Malignancy (e.g. hematologic ... deficiencies • Autoimmune ... lymphopenia, low PLT • Anemia ... 1, SCL-70, RNP antibodies
Cold Agglutinin Disease

3 Types of Cold Sensitive Antibodies:
  1. Cold Agglutinins (CAD)
  2. Donath-Landsteiner
Cold Sensitive Antibodies ... Cold Agglutinin Syndrome ... Viral infection, autoimmune ... CLL (older) • Autoimmune ... #hematology #diagnosis