17 results
Rapidly Progressive Glomerulonephritis (RPGN)
RPGN has three primary pathophysiologic causes differentiated by immunofluorescence

Immune Complex Mediated (granular staining):
pathophysiologic causes ... ANCA (C-ANCA): GPA ... , MPA >>> GPA Stanford ... #differential #diagnosis ... #algorithm #rheumatology
Dermatologic Manifestations of Granulomatosis with Polyangiitis (GPA)

Skin involvement in granulomatosis with polyangiitis (GPA) is common and
Polyangiitis (GPA ... polyangiitis (GPA ... GPA causes disease ... #Polyangiitis #GPA ... #diagnosis #rheumatology
Anterior ischemic optic neuropathy (AION) - Recognition of giant cell arteritis (GCA)

1) Is visual loss caused
cell arteritis (GCA ... Typical symptoms of GCA ... GiantCellArteritis #GCA ... #Rheumatology # ... #Algorithm
Dermatological semiology of Cutaneous Vasculitis 

Clinicopathologic correlations
 • Purpura, papules, pustules, necrosis: involvement of small vessels
Dermatological semiology ... Identification of causes ... vasculitis (5%): PAN > GPA ... #semiology #signs ... #lesions #diagnosis
Aortitis - Differential Diagnosis Framework
Non-Infectious Aortitis:
 • Vasculitides: Giant Cell Arteritis (GCA), Takayasu's arteritis, Cogan's Syndrome,
- Differential Diagnosis ... Cell Arteritis (GCA ... Systemic lupus erythematosus ... #Differential #Diagnosis ... #rheumatology
Skin Conditions Associated with Joint Pain

Rash
	• Human parvovirus B19 infection

Malar rash
	• SLE
	• Human parvovirus B19 infection
	•
Vesicopustule on erythematous ... Sarcoidosis • GPA ... Sarcoidosis #dermatology ... #differential #diagnosis ... #rheumatology
Inflammatory Joint Pain - Differential Diagnosis Algorithm 
Monoarticular
 • Gout (Podagra, Tophi)
 • Pseudogout
 • Early
- Differential Diagnosis ... Algorithm Monoarticular ... Systemic Lupus Erythematosus ... polyangiitis (GPA ... #Causes
Purpura - Differential Diagnosis Framework

Non-blanchable, dark red to purple, hemorrhagic skin lesions that result from leakage
- Differential Diagnosis ... vasculitis - GPA ... #Differential #Diagnosis ... #hematology #rheumatology ... #nonpalpable #dermatology
Giant cell arteritis (GCA)

Giant cell arteritis (GCA) definition: Most common systemic inflammatory vasculitis in older adults
cell arteritis (GCA ... cell arteritis (GCA ... GCA versus Temporal ... GCA can present ... them, but urgent rheumatology
Papulosquamous Skin Rash - Differential Diagnosis Algorithm
Erythrematous or violaceous papules & plaques with overlying scale
 •
- Differential Diagnosis ... Algorithm Erythrematous ... Auspitz sign, Koebner's ... Papulosquamous #SkinRash #dermatology ... #Algorithm #causes