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

Immune Complex Mediated (granular staining):
nephropathy, Henoch-SchonIein ... Purpura Anti-GBM ... #differential # ... diagnosis #algorithm ... #rheumatology
Vasculitis Involving the Skin - Differential Diagnosis Framework

Primary: 50% Cutaneous Vasculitis: Leukocytoclastic Vasculitis
Secondary: CTD: SLE, RA
Petechiae, Palpable purpura ... : - Ig A (HSP) ... #skin #dermatology ... #rheumatology # ... differential #diagnosis
Purpura - Differential Diagnosis Framework

Non-blanchable, dark red to purple, hemorrhagic skin lesions that result from leakage
Purpura - Differential ... • Ig A vasculitis ... /HSPCryoglobulinemia ... Diagnosis #hematology ... #rheumatology #
Dermatologic Manifestations of Granulomatosis with Polyangiitis (GPA)

Skin involvement in granulomatosis with polyangiitis (GPA) is common and
Diagnosis: Vasculitis ... • Henoch-Schönlein ... purpura • Mixed ... #dermatology #rash ... #diagnosis #rheumatology
Skin Conditions Associated with Joint Pain

Rash
	• Human parvovirus B19 infection

Malar rash
	• SLE
	• Human parvovirus B19 infection
	•
disease Palpable purpura ... • Henoch Schönlein ... purpuraPAN ... Sarcoidosis #dermatology ... #diagnosis #rheumatology
Diagnosis of IgA Vasculitis (Henoch-Schönlein Purpura) - French Vasculitis Study Group 

1) Suggestive clinical manifestations
Vasculitis (Henoch-Schönlein ... Purpura) - French ... Symmetric palpable purpura ... #HSP #Diagnosis ... #Rheumatology #
Cryoglobulinemia Summary

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

When to Consider Vasculitis:
 • Purpura, ischemic skin lesions
 •
: • Purpura, ischemic ... Schonlein Purpura ... (IgA vasculitis ... differential #diagnosis ... #rheumatology #
Vasculitis - Differential Diagnosis Framework

When to Consider Vasculitis:
• Purpura, ischemic skin lesions
• Mononeuritis multiplex
• Hematuria, proteinuria,
Vasculitis - Differential ... : • Purpura, ischemic ... Differential Diagnosis ... Schonlein Purpura ... Diagnosis #Rheumatology
Causes of Petechial Rash - Differential Diagnosis Algorithm

Pinpoint areas (less than 2 mm) of hemorrhage, which
Diagnosis Algorithm ... Schonlein Purpura ... Non-Palpable Rash: - Purpura ... #Diagnosis #Algorithm ... #Causes #dermatology