11 results
Antinuclear antibodies and Systemic lupus
Anti-dsDNA	60-80%	Association with disease activity (when with Farr assay) and lupus nephritis. Can
Antinuclear antibodies ... 40% Target: SS-A/Ro ... is clinically suspected ... #erythematosus ... #diagnosis #rheumatology
Joint Disorders - Differential Diagnosis Algorithm
Monoarthritis
 • Septic
 • Crystalline
     - Gout
Joint Disorders - Differential ... Diagnosis Algorithm ... Erythematosus ( ... SLE), should have ... Joint #Disorders #msk
SLE (Systemic Lupus Erythematosus)

Suspect:
Clinical evidence of (fatigue, rash, photosensitivity, inflammatory arthritis, weight loss, and fever) and
SLE (Systemic Lupus ... Suspect: Clinical ... permanent alopecia Differential ... Diagnosis: • ANCA-associated ... #Diagnosis #Rheumatology
Antinuclear Antibodies (ANA)
ANA or Anti-NucIear Antibody refers to antibodies against antigens in the nucleus → like
Antinuclear Antibodies ... likely it will be clinically ... Kumfer @AnnKumfer #Antinuclear ... #rheumatology #diagnosis ... #differential
Prior anterior glenohumeral joint dislocation with Hill-Sachs fracture and Perthes lesion
Imaging Findings:
 • The arrow is
- Difficult to see ... surgical repair Differential ... diagnosis: • Bankart ... #mri #clinical ... #msk
Rheumatology Workup - Laboratories Studies in Rheumatic Diseases

• Septic arthritis - Gram stain and culture of
joint • Systemic lupus ... erythematosus ( ... SLE) - Antinuclear ... (to support a diagnosis ... ANA and RF (if clinical
Sjogren's Syndrome Overview

Epidemiology:
• F > M: 9:1
• 5-6th Decades (can be any age)

Autoimmune exocrinopathy multisystemic disease
overlaps with RA, SLE ... Antibodies: Anti-Ro ... ab • RF • Antinuclear ... salivary ducts Clinical ... phenomenon (16%) MSK
Myasthenia Gravis Overview

Myasthenia Gravis is an autoimmune disorder of the postsynaptic neuromuscular junction.  Ab to
rheumatoid arthritis, SLE ... life-threatening Differential ... myasthenia Diagnosis ... immunologic assay - MuSK ... #management #neurology
Subchondral Insufficiency Fracture
Imaging Findings:
 • Circle demarcating the region of edema within the medial femoral condyle.
See a linear ... Differential diagnosis ... #clinical #mri ... #clinical #Radiology ... #diagnosis #msk
Transverse Myelitis Overview

Focal inflammatory disorder of the spinal cord resulting in rapid onset of weakness, sensory
Transverse Myelitis - Clinical ... Evaluate for NMO, SLE ... Disorders: - SLE ... #management #neurology ... #differential