6 results
Causes of Petechial Rash - Differential Diagnosis Algorithm

Pinpoint areas (less than 2 mm) of hemorrhage, which
in primary or secondary ... RMSF - Henoch Schonlein ... RA, Sjogren's, GPA ... cryoglobulins • Skin ... #Petechiae #Rash
Dermatologic Manifestations of Granulomatosis with Polyangiitis (GPA)

Skin involvement in granulomatosis with polyangiitis (GPA) is common and
(GPA) Skin involvement ... Findings: • Petechiae ... Maculopapular rash ... • EGPA • Henoch-Schönlein ... #rash #diagnosis
Vasculitis Involving the Skin - Differential Diagnosis Framework

Primary: 50% Cutaneous Vasculitis: Leukocytoclastic Vasculitis
Secondary: CTD: SLE, RA
Leukocytoclastic Vasculitis Secondary ... related vasculitis, infections ... Small Vessel: Petechiae ... - Microscopic polyangiitis ... - EGPA - GPA
Cryoglobulinemia Summary

Cryoglobulins:
 • Cryoglobulins are Igs in the serum that precipitate in vitro at temperatures below
- Purpura - Skin ... Type III Often Secondary ... associated vasculitis - GPA ... polyangiitis ... vasculitis (Henoch-Schönlein
Vasculitis - Differential Diagnosis Framework

When to Consider Vasculitis:
• Purpura, ischemic skin lesions
• Mononeuritis multiplex
• Hematuria, proteinuria,
to exclude are infections ... , mucositis • Rash ... MPO > PR3 60/ GPA ... present) Henoch Schonlein ... , recent viral infection
Vasculitis and Vasculitides - Differential Diagnosis Framework

When to Consider Vasculitis:
 • Purpura, ischemic skin lesions
 •
• Microscopic Polyangiitis ... present • Henoch Schonlein ... mucositis - Rash ... to exclude are infections ... • ANCA (Dx: GPA