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

Immune Complex Mediated (granular staining):
ANCA (C-ANCA): GPA ... , MPA >>> GPA Stanford ... Glomerulonephritis #Vasculitis ... #differential #diagnosis ... #algorithm #rheumatology
Vasculitis Involving the Skin - Differential Diagnosis Framework

Primary: 50% Cutaneous Vasculitis: Leukocytoclastic Vasculitis
Secondary: CTD: SLE, RA
- Differential Diagnosis ... - GPA Cutaneous ... #skin #dermatology ... #rheumatology # ... differential #diagnosis
Dermatologic Manifestations of Granulomatosis with Polyangiitis (GPA)

Skin involvement in granulomatosis with polyangiitis (GPA) is common and
Polyangiitis (GPA ... polyangiitis (GPA ... GPA causes disease ... #dermatology #rash ... #diagnosis #rheumatology
Dermatological semiology of Cutaneous Vasculitis 

Clinicopathologic correlations
 • Purpura, papules, pustules, necrosis: involvement of small vessels
semiology of Cutaneous Vasculitis ... (5%): PAN > GPA ... , EGPA • Solid ... #dermpath #dermatology ... signs #lesions #diagnosis
ANCA-Associated Vasculitis
There are many definitions, but most come down to the presence of granulomas (pathologically or
ANCA-Associated Vasculitis ... polyangiitis (GPA ... StanfordChiefs #ANCA #Vasculitis ... #differential #diagnosis ... #algorithm #rheumatology
Purpura - Differential Diagnosis Framework

Non-blanchable, dark red to purple, hemorrhagic skin lesions that result from leakage
- Differential Diagnosis ... - GPA - EGPA ... #Differential #Diagnosis ... #hematology #rheumatology ... #nonpalpable #dermatology
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 ... Ophthalmology #Diagnosis ... #Algorithm
Skin Conditions Associated with Joint Pain

Rash
	• Human parvovirus B19 infection

Malar rash
	• SLE
	• Human parvovirus B19 infection
	•
Hypersensitivity vasculitis ... Sarcoidosis • GPA ... Antiphospholipid-antibody syndrome • Vasculitis ... Sarcoidosis #dermatology ... #differential #diagnosis
Causes of Petechial Rash - Differential Diagnosis Algorithm

Pinpoint areas (less than 2 mm) of hemorrhage, which
- Differential Diagnosis ... Algorithm Pinpoint ... RA, Sjogren's, GPA ... #Algorithm #Causes ... #dermatology #physicalexam
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 ... Treatment of GCA