11 results
Vasculitis Involving the Skin - Differential Diagnosis Framework

Primary: 50% Cutaneous Vasculitis: Leukocytoclastic Vasculitis
Secondary: CTD: SLE, RA
Secondary: CTD: SLE, RA ... Urticarial/LCV) - Cryoglobulinemic ... - GPA Cutaneous ... #skin #dermatology ... #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 ... burning sensation or pain ... #Polyangiitis #GPA
Dermatological semiology of Cutaneous Vasculitis 

Clinicopathologic correlations
 • Purpura, papules, pustules, necrosis: involvement of small vessels
(5%): PAN > GPA ... , EGPA • Solid ... hemopathies (4%) • Cryoglobulinemia ... #dermpath #dermatology ... #semiology #signs
Skin Conditions Associated with Joint Pain

Rash
	• Human parvovirus B19 infection

Malar rash
	• SLE
	• Human parvovirus B19 infection
	•
gangrenosum • IBD • RA ... Sarcoidosis • GPA ... Sarcoidosis #dermatology ... #joint #pain #skin ... differential #diagnosis #rheumatology
Vasculitis and Vasculitides - Differential Diagnosis Framework

When to Consider Vasculitis:
 • Purpura, ischemic skin lesions
 •
> PR3 60% • GPA ... Vasculitis - Skin ... and branches • GCA ... purpura: strong sign ... • ANCA (Dx: GPA
Cryoglobulinemia Summary

Cryoglobulins:
 • Cryoglobulins are Igs in the serum that precipitate in vitro at temperatures below
- Purpura - Skin ... - 10% SLE or RA ... reticularis & skin ... - GPA, EGPA, microscopic ... classification #rheumatology
Purpura - Differential Diagnosis Framework

Non-blanchable, dark red to purple, hemorrhagic skin lesions that result from leakage
purple, hemorrhagic skin ... /HSP • Cryoglobulinemia ... - GPA - EGPA ... Differential #Diagnosis #hematology ... #rheumatology #
Extra-articular and Other Conditions Associated with Joint Pain

Eyes
  • Iritis or uveitis - Spondyloarthropathies, Sarcoidosis,
, Sarcoidosis, GPA ... Spondyloarthropathies, SLE, GPA ... polychondritis, GPA ... cell arteritis, GPA ... severe sinusitis - GPA
Vasculitis - Differential Diagnosis Framework

When to Consider Vasculitis:
• Purpura, ischemic skin lesions
• Mononeuritis multiplex
• Hematuria, proteinuria,
purpura: Strong sign ... Elevated ESR and CRP GCA ... develop in pts with GCA ... MPO > PR3 60/ GPA ... / ANCA + MPO) Cryoglobulinemic
Causes of Petechial Rash - Differential Diagnosis Algorithm

Pinpoint areas (less than 2 mm) of hemorrhage, which
lesions • Severe pain ... (lupus, RA, Sjogren's ... , GPA, EGPA, Microscopic ... cryoglobulins • Skin ... Algorithm #Causes #dermatology