8 results
Antinuclear Antibody Testing - Nuclear and Cytoplasmic Patterns
Nuclear Patterns:
 • Homogeneous pattern: 
   -
Antinuclear Antibody ... SLE, SjS, CTD-ILD ... phenomenon - EJ, Jo-1, ... #differential # ... diagnosis #rheumatology
Antinuclear Antibody Testing Cytoplasmic Patterns
Reticular/AMA: 
 • PBC, SSc, PBC/SSc OS, PBC/SjS OS
 • AMA
Speckled:
 •
Antinuclear Antibody ... SLE, SjS, CTD-ILD ... phenomenon • EJ, Jo-1, ... #differential # ... diagnosis #rheumatology
Platelet disorders and Aggregometry
Glanzmann Thrombasthenia
 • Defective aggregation to all agonists except ristocetin
 • Normal platelet,
similar aggregation pattern ... cytometry — GP Ilb ... agonists • This pattern ... either severe Type 1 ... Platelet #disorders #hematology
Causes of Abnormal PT and/or aPTT
Prolonged Prothrombin Time (PT)
1. Acquired deficiency of FVII
of Abnormal PT and ... FVIII antibody ... aPTT 1. ... Causes #diagnosis #differential ... #hematology #coagulation
Approach to Joint Pain - Arthritis Differential Diagnosis Framework

Inflammatory Versus Noninflammatory Pain
 • Is it inflammatory
Pain - Arthritis Differential ... • Is there a pattern ... lasting > 30 mins - 1 ... asymmetric pattern ... #Joint #pain #Differential
SLE (Systemic Lupus Erythematosus)

Suspect:
Clinical evidence of (fatigue, rash, photosensitivity, inflammatory arthritis, weight loss, and fever) and
permanent alopecia Differential ... Non-autoimmune rheumatologic ... • Acute lupus pneumonitis ... titers > 1:80 ... Ro/La, anti-Jo-1,
Anti-NXP-2 Dermatomyositis

What?
DM with generalized subcutaneous edema
Pts have more myalgias, more severe weakness, and an increased prevalence
levels • NXP-2 antibody ... Dermatomyositis: • ILD ... Prednisone at 1 ... diagnosis #management #rheumatology ... #dermatology
Autoimmune Myositis - Differential Diagnosis Framework

Inflammatory Myopathies: Commonly symmetric proximal muscle weakness, no substantial muscle pain
Autoimmune Myositis - Differential ... Anti-MDA5 (RP-ILD ... Ab • Anti-Jo-1 ... pattern of muscle ... #differential #