17 results
Systemic Lupus Erythematosus - Diagnosis
Manifestations:
 - Arthritis 69%
 - Malar rash 40%
 - Fever 36%
 -
Arthritis 69% - Malar ... Auto-Antibodies ... : - ANA 95-100% ... Diagnosis and Lupus ... #rheumatology
Antinuclear Antibodies (ANA)
ANA or Anti-NucIear Antibody refers to antibodies against antigens in the nucleus → like
Antinuclear Antibodies ... assay (IFA) is the main ... should be interpreted ... #rheumatology #diagnosis ... #differential
SLE (Systemic Lupus Erythematosus)

Suspect:
Clinical evidence of (fatigue, rash, photosensitivity, inflammatory arthritis, weight loss, and fever) and
SLE (Systemic Lupus ... permanent alopecia Differential ... Arthritis: • Joint pain ... Photosensitivity • Malar ... lymphopenia, low PLT • Anemia
Top 10 situations when to think about lupus
1) Inflammatory joint pain (especially in the wrists and
Inflammatory joint pain ... fingers, or pain ... the face (many differential ... #diagnosis #sle ... erythematosus #rheumatology
Diagnostic Framework for Hemolysis - Intravascular vs Extravascular Causes
Intravascular Hemolysis:
 • Mechanical Trauma (Microangiopathic hemolytic anemia):
Extravascular Causes ... usually IgG) (e.g. lupus ... • Infections: Malaria ... #differential # ... #anemia
Causes of Thrombocytopenia and Platelet Disorders - Differential Diagnosis and Workup
History:
 - Prior platelet count, family
- Differential ... function test, ANA ... (e.g., SLE), anti-phospholipid ... antibodies, Quantitative ... changes), high MCV anemia
Causes of Bone/Joint Pain in Sickle Cell Disease
Vaso-occlusive pain:
 • Mechanism: ischemic pain
 • Can present
Causes of Bone/Joint ... common sites: hip, shoulder ... XR, MRI to dx and ... dz difficult to see ... #hematology
Aortitis - Differential Diagnosis Framework
Non-Infectious Aortitis:
 • Vasculitides: Giant Cell Arteritis (GCA), Takayasu's arteritis, Cogan's Syndrome,
Aortitis - Differential ... Polyarteritis Nodosa (PAN ... (RA), Systemic lupus ... erythematosus (SLE ... #Diagnosis #rheumatology
Features That Differentiate Acute Pericarditis from Myocardial Ischemia or Infarction and Pulmonary Embolism

In contrast to the
Features That Differentiate ... associated with rheumatologic ... presentation of systemic lupus ... trapezius ridges or shoulders ... life-threatening causes
Rheumatology Workup - Laboratories Studies in Rheumatic Diseases

• Septic arthritis - Gram stain and culture of
joint • Systemic lupus ... antibodies, which ... RF test should ... the presence of anemia ... low back pain)