41 results
Skin Conditions Associated with Joint Pain

Rash
	• Human parvovirus B19 infection

Malar rash
	• SLE
	• Human parvovirus B19 infection
	•
Joint Pain Rash ... infection Malar rash ... Seborrhea • Dermatomyositis ... Heliotrope • Dermatomyositis ... differential #diagnosis #rheumatology
ANTI-MDA5 DERMATOMYOSITIS

Cutaneous manifestations:
• Periorbital heliotrope (blue-purple) rash with edema
• Erythematous rash on the face, or the
ANTI-MDA5 DERMATOMYOSITIS ... (blue-purple) rash ... • Erythematous rash ... Men • ~50% of cases ... #rheumatology #
Autoimmune Myositis
Necrotizing myopathy is associated with higher CK levels, greater level of muscle weakness, less systemic
Dermatomyositis ... can present with rash ... including heliotrope rash ... Myositis #diagnosis #rheumatology
Dermatomyositis
A middle-aged man describes progressive difficulty combing his hair and rising from a seated position over
Dermatomyositis ... This is a case of ... dermatomyositis ... 1) heliotrope rash ... AndreMansoor #Dermatomyositis
Childhood Immunization Schedule: Why we immunize
 • Diphtheria Toxin -> URT inflammation causes pseudomembrane with hardened
cause quadriplegia ... & hemorrhagic rash ... Maternal viremia causes ... Vesicular & pruritic rash ... peds #pediatrics #pathophysiology
Dermatomyositis (DM) and Polymyositis (PM): Pathogenesis and clinical findings
Elevated Antinuclear Antibodies: Anti-Jo-1, Anti-OJ, Anti-Mi2, Anti-SRP, Anti-EJ,
Dermatomyositis ... -> Heliotrope Rash ... flexors affected #Dermatomyositis ... PM #Diagnosis #Pathophysiology
Myositis and Myopathies
Polymyositis 
 • Progressive, symmetric muscle weakness 
 • Elevated CK, +Anti-Jo, +Anti-Mi2
Dermatomyositis
Anti-Jo, +Anti-Mi2 Dermatomyositis ... muscle weakness, rash ... diagnosis #comparison #rheumatology
Hyperuricemia: Pathogenesis and Complications

 - Hypercalcemia (due to diseases like Sarcoidosis and Hyperparathyroidism) -> Accumulation of
blood - Tubular Poisons ... keto-acids) -> Poisons ... Release of purine bases ... Hyperuricemia #Pathophysiology
Rhabdomyolysis - Differential Diagnosis and Management Summary

Trauma:
 • Immobilization, Crush iniury, Compartment syndrome, Electrical injury
Exertional:
 •
Immobilization, Crush ... (polymyositis/Dermatomyositis ... ) AKI - Pathophysiology ... Management #Summary #causes
ANA (Antinuclear Antibody) and ANCA (Antineutrophil cytoplasmic antibodies)
 • Systemic lupus erythematosus
   1. Anti-dsDNA
Anti-dsDNA (in 70% of cases ... seen in 30—70% of cases ... Polymyositis and dermatomyositis ... antibodies #diagnosis #rheumatology