14 results
ANA Patterns and Associated Rheumatic Diseases:
 • Homogeneous: Systemic lupus erythematosus (SLE), Mixed connective tissue disease
ANA Patterns and ... disease (MCTD), Drug-induced ... #Antinuclear #Antibodies ... #ANA #patterns ... #rheumatology #diagnosis
Antinuclear Antibodies (ANA)
ANA or Anti-NucIear Antibody refers to antibodies against antigens in the nucleus → like
Antinuclear Antibodies ... Antibody refers to antibodies ... erythematosus ( ... erythematosus ( ... #rheumatology #diagnosis
Systemic Lupus Erythematosus - Diagnosis
Manifestations:
 - Arthritis 69%
 - Malar rash 40%
 - Fever 36%
 -
Systemic Lupus Erythematosus ... SLE-Related Auto-Antibodies ... : Drug-induced lupus ... #Erythematosus ... #differential #rheumatology
Causes of Abnormal PT and/or aPTT
Prolonged Prothrombin Time (PT)
1. Acquired deficiency of FVII
Early liver disease ... antiphospholipid antibodies ... Reduced liver synthesis ... Prolonged #Causes #diagnosis ... #differential #hematology
SLE (Systemic Lupus Erythematosus)

Suspect:
Clinical evidence of (fatigue, rash, photosensitivity, inflammatory arthritis, weight loss, and fever) and
Differential Diagnosis ... extremities Drug ... 1, SCL-70, RNP antibodies ... • Antihistone: Drug ... #Diagnosis #Rheumatology
Differential Diagnosis for a Prolonged PT and aPTT
If the PT and the aPTT are both prolonged,
Differential Diagnosis ... Drugs: Direct or ... antiphospholipid antibodies ... • Reduced liver ... #differential #hematology
Hair Loss (Alopecia) - General (Diffuse and Focal) Differential Diagnosis Algorithm

DIFFUSE
Scarring - Irreversible-biopsy required
 • Lupus
) Differential Diagnosis ... erythematosus ... planopilaris Pattern ... • Hyperthyroid drugs ... erythematosus
ANA (Antinuclear Antibody) and ANCA (Antineutrophil cytoplasmic antibodies)
 • Systemic lupus erythematosus
   1. Anti-dsDNA
Antineutrophil cytoplasmic antibodies ... ) • Systemic lupus ... erythematosus ... Anti-histone (in drug-induced ... #diagnosis #rheumatology
Allopecia - Differential Diagnosis Framework for Hair Loss

Localized / Focal Hair Loss Pattern:
 • Scarring Alopecia:
- Differential Diagnosis ... Disease: Discoid lupus ... erythematosus, ... Scarring Alopecia: Lupus ... erythematosus,
Antinuclear antibodies and Systemic lupus
Anti-dsDNA	60-80%	Association with disease activity (when with Farr assay) and lupus nephritis. Can
Antinuclear antibodies ... and Systemic lupus ... SLE (60-70%) & drug-induced ... #erythematosus ... #diagnosis #rheumatology