31 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 ... #differential #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 ... Papules #Clinical #Photo
Autoimmune Myositis
Necrotizing myopathy is associated with higher CK levels, greater level of muscle weakness, less systemic
Dermatomyositis ... can present with rash ... /full triad at diagnosis ... Autoimmune #Myositis #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 ... #rheumatology # ... dermatology #diagnosis
Inflammatory Joint Pain - Differential Diagnosis Algorithm 
Monoarticular
 • Gout (Podagra, Tophi)
 • Pseudogout
 • Early
- Differential Diagnosis ... (Polymyositis/Dermatomyositis ... #Differential #Diagnosis ... #Algorithm #Orthopedics ... #Causes
Infectious Joint Pain - Differential Diagnosis Algorithm 
Polyarticular Join Pain
 • Viral Myalgia
 • Viral Arthritis
- Differential Diagnosis ... & Symmetrical Rash ... #Differential #Diagnosis ... #Algorithm #Orthopedics ... #Causes
Myositis and Myopathies
Polymyositis 
 • Progressive, symmetric muscle weakness 
 • Elevated CK, +Anti-Jo, +Anti-Mi2
Dermatomyositis
Anti-Jo, +Anti-Mi2 Dermatomyositis ... muscle weakness, rash ... #differential #diagnosis ... #comparison #rheumatology
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 ... Antineutrophil #antibodies #diagnosis ... #rheumatology #
Causes of Bone/Joint Pain in Sickle Cell Disease
Vaso-occlusive pain:
 • Mechanism: ischemic pain
 • Can present
Causes of Bone/Joint ... predispose to other orthopedic ... #differential #diagnosis ... #causes #hematology
Top 10 situations when to think about lupus
1) Inflammatory joint pain (especially in the wrists and
everywhere) 2) A rash ... many differential diagnoses ... 6) An annular rash ... Lupusreference #lupus #diagnosis ... erythematosus #rheumatology