7 results
Petechial/Purpuric Rashes- THE ALGORITHMIC APPROACH 

These rashes can be especially challenging and are
associated with devastating differential
Nonpalpable purpura ... endocarditis, RMSF, and Henoch-Schönlein ... lesions may have a vasculitis ... as autoimmune vasculitis ... #Diagnosis #Dermatology
Dermatologic Manifestations of Granulomatosis with Polyangiitis (GPA)

Skin involvement in granulomatosis with polyangiitis (GPA) is common and
purpura (16%) ... purpura • Vesicles ... overlying purpuric ... purpura • Mixed ... Polyangiitis #GPA #dermatology
Skin Conditions Associated with Joint Pain

Rash
	• Human parvovirus B19 infection

Malar rash
	• SLE
	• Human parvovirus B19 infection
	•
purpura • Hypersensitivity ... Henoch Schönlein ... purpuraPAN ... Sarcoidosis #dermatology ... #rheumatology
Causes of Petechial Rash - Differential Diagnosis Algorithm

Pinpoint areas (less than 2 mm) of hemorrhage, which
Infection - Vasculitis ... Schonlein Purpura ... Rash: - Purpura ... #Algorithm #Causes ... #dermatology #physicalexam
Cryoglobulinemia Summary

Cryoglobulins:
 • Cryoglobulins are Igs in the serum that precipitate in vitro at temperatures below
Arthralgia - Purpura ... purpura, Arthralgia ... (Henoch-Schönlein ... purpura) • Cutaneous ... #rheumatology #
Vasculitis and Vasculitides - Differential Diagnosis Framework

When to Consider Vasculitis:
 • Purpura, ischemic skin lesions
 •
: • Purpura, ischemic ... Schonlein Purpura ... erythematous nodules, purpura ... purpura: strong ... purpura.
Vasculitis - Differential Diagnosis Framework

When to Consider Vasculitis:
• Purpura, ischemic skin lesions
• Mononeuritis multiplex
• Hematuria, proteinuria,
: • Purpura, ischemic ... Schonlein Purpura ... ) • Palpable purpura ... ) • Palpable purpura ... #Rheumatology