45 results
Skin Conditions Associated with Joint Pain

Rash
	• Human parvovirus B19 infection

Malar rash
	• SLE
	• Human parvovirus B19 infection
	•
Vesicopustule on erythematous ... Hypersensitivity vasculitis ... Antiphospholipid-antibody syndrome • Vasculitis ... Discoid lupus erythematosus ... #differential #diagnosis
Classification of Vasculitis 
Vasculitis of large vessels 
 - Arteritis temporalis (giant-cell arteritis) 
 - Takayasu
angiitis induced by drugs ... systemic lupus erythematosus ... #Vessels #Diagnosis ... #Rheumatology # ... Diagnosis
Vasculitis Involving the Skin - Differential Diagnosis Framework

Primary: 50% Cutaneous Vasculitis: Leukocytoclastic Vasculitis
Secondary: CTD: SLE, RA
- Differential Diagnosis ... , infections, drug ... #skin #dermatology ... #rheumatology # ... differential #diagnosis
Vasculitis and Vasculitides - Differential Diagnosis Framework

When to Consider Vasculitis:
 • Purpura, ischemic skin lesions
 •
- Differential Diagnosis ... • Drug Associated ... ischemia - Skin: erythematous ... systemic lupus erythematosus ... #rheumatology #
Vascular Skin Lesions - Differential Diagnosis Algorithm
 - Petechiae < 0.2 cm diameter
 - Purpura 0.2
- Differential Diagnosis ... with pressure - Erythematous ... #Vascular #Vasculitis ... #SkinRash #dermatology ... #Differential #Diagnosis
ANA Patterns and Associated Rheumatic Diseases:
 • Homogeneous: Systemic lupus erythematosus (SLE), Mixed connective tissue disease
Systemic lupus erythematosus ... disease (MCTD), Drug-induced ... Systemic lupus erythematosus ... ANA #patterns #rheumatology ... #diagnosis #differential
SLE (Systemic Lupus Erythematosus)

Suspect:
Clinical evidence of (fatigue, rash, photosensitivity, inflammatory arthritis, weight loss, and fever) and
Differential Diagnosis ... Malignancy (e.g. hematologic ... extremities Drug ... • Antihistone: Drug ... #Diagnosis #Rheumatology
Purpura - Differential Diagnosis Framework

Non-blanchable, dark red to purple, hemorrhagic skin lesions that result from leakage
- Differential Diagnosis ... Secondary Causes: - Drug ... spotted fever • Drug ... #Differential #Diagnosis ... #hematology #rheumatology
Dermatological semiology of Cutaneous Vasculitis 

Clinicopathologic correlations
 • Purpura, papules, pustules, necrosis: involvement of small vessels
semiology of Cutaneous Vasculitis ... angiitis (40%) • Drug-induced ... vasculitis (20% ... #dermpath #dermatology ... signs #lesions #diagnosis
Seronegative Inflammatory Arthritis - Differential Diagnosis
 • Seronegative Rheumatoid Arthritis 
 • Infectious Arthritis: Viral, Bacterial,
- Differential Diagnosis ... Systemic Lupus Erythematous ... , Systemic Vasculitis ... #Differential #Diagnosis ... #rheumatology