17 results
Myositis and Myopathies
Polymyositis 
 • Progressive, symmetric muscle weakness 
 • Elevated CK, +Anti-Jo, +Anti-Mi2
Dermatomyositis
muscle weakness, rash ... load Drug-induced myopathy ... 5-15% of lupus myopathy ... #differential #diagnosis ... #comparison #rheumatology
Monoclonal Gammopathy of Clinical Significance (MGUS) - Differential Diagnosis

Neurologic-Centered:
 (+) Systemic Features: POEMS, AL amyloid, Cryoglobulinemia
- Differential Diagnosis ... late-onset nemaline myopathy ... Cutaneous-centered ... #Differential #Diagnosis ... #hematology #oncology
Idiopathic Inflammatory Myopathies (IIM's)

RASH + MUSCLE WEAKNESS → Consider idiopathic inflammatory myopathies (IIM's)

 • Overlap Myositis
Myopathies (IIM's) RASH ... Myopathies #IIMs #diagnosis ... #rheumatology # ... dermatology #Myopathy ... #Rash
Cutaneous larva migrans skin Rash
25 F recent Caribbean vacation, walked barefoot on sand and now with
migrans skin Rash ... . diagnosis? ... self-limited Diagnosis ... migrans #skinRash #dermatology ... #clinical #photo
Drug Induced Lupus vs SLE
Drug Induced Lupus (DIL):
 • Epidemiology: -10% of all lupus cases, drug-dependent,
NPSLE rare, Malar rash ... Rare (SSA+ for cutaneous ... druginduced #lupus #sle #comparison ... #table #rheumatology ... #diagnosis #management
Hodgkin's Lymphoma vs Non-Hodgkin's Lymphoma - Comparison

Hodgkin's Lymphoma:
 • Epidemiology: young adults 20-30, older 50-70
 •
Non-Hodgkin's Lymphoma - Comparison ... disease: GI, neuro, cutaneous ... Differential Diagnosis ... #oncology #diagnosis ... #differential #hematology
ANTI-MDA5 DERMATOMYOSITIS

Cutaneous manifestations:
• Periorbital heliotrope (blue-purple) rash with edema
• Erythematous rash on the face, or the
DERMATOMYOSITIS Cutaneous ... (blue-purple) rash ... • Erythematous rash ... Dermatomyositis #rheumatology ... #dermatology #diagnosis
Erythemas Summarized
Erythema ab igne
 • A dermatosis that results from repeated exposure to heat (fires, heating
causes: infections (cutaneous ... Rash is usually ... PrathitKulkarni #Erythemas #comparison ... #differential #diagnosis ... #dermatology #compared
Cold Agglutinin Disease

3 Types of Cold Sensitive Antibodies:
  1. Cold Agglutinins (CAD)
  2. Donath-Landsteiner
nose, ears, or fingers ... presentation) • Cutaneous ... Diagnosis: • hemolytic ... hemolytic #anemia #hematology ... #diagnosis
Paraproteinemias

Entities That Can Feature A Monoclonal Protein/M Component:
• MM
• WM
• MGUS
• MGCS
• MGRS
• Splenic Marginal Zone
gangrenosum • Cutaneous ... late-onset nemaline myopathy ... Paraproteinemias #Hematology ... #Differential #Diagnosis