15 results
Petechial/Purpuric Rashes- THE ALGORITHMIC APPROACH 

These rashes can be especially challenging and are
associated with devastating differential
Petechial/Purpuric ... ) purpura occurs ... endocarditis, RMSF, and Henoch-Schönlein ... purpura. ... purpura.
Henoch Schonlein Leg Rash - Palpable Purpura
Purpura: Low Platelets or Vasculitis?
45 years old, seen in our
Palpable purpura ... Tip: To differentiate ... Thrombocytopenia ... purpura (IgA), ... #dermatology #HSP
Causes of Purpura - Differential Diagnosis
Non-PalpabIe → Palpable
 • Thrombocytopenia (HIT, ITP/HUS), Coagulation defects (DIC, warfarin
Causes of Purpura ... - Differential ... Thrombocytopenia ... cryoglobulins, IgA ... BrighamChiefs #Purpura
Palpable Purpura seen in Henoch Schonlein Purpura (HSP, IgA Vasculitis)

55 year old male on tuberculosis treatment
Palpable Purpura ... seen in Henoch ... Schonlein Purpura ... (HSP, IgA Vasculitis ... #Purpura #Henoch
Glomerulonephritis - Differential Diagnosis Framework
ANCA:
 • C-ANCA: GPA (Wegener's)
 • P-ANCA: Microscopic Polyangiitis, Eosinophilic GPA (Churg
Glomerulonephritis ... - Differential ... , Henoch Schonlein ... Purpura SCVMC ... #differential #
Purpura - Differential Diagnosis Framework

Non-blanchable, dark red to purple, hemorrhagic skin lesions that result from leakage
Purpura - Differential ... PURPURA: Platelet ... Acute Infectious Purpura ... PURPURA: Vasculitis ... A vasculitis/HSP
Diagnosis of IgA Vasculitis (Henoch-Schönlein Purpura) - French Vasculitis Study Group 

1) Suggestive clinical manifestations
Vasculitis (Henoch-Schönlein ... Purpura) - French ... - Symmetric palpable ... purpura mainly ... HenochSchonleinPurpura #HSP
Rapidly Progressive Glomerulonephritis (RPGN)
RPGN has three primary pathophysiologic causes differentiated by immunofluorescence

Immune Complex Mediated (granular staining):
Rapidly Progressive Glomerulonephritis ... Normal Complement: IgA ... nephropathy, Henoch-SchonIein ... Purpura Anti-GBM ... #Vasculitis #differential
Vasculitis - Differential Diagnosis Framework

When to Consider Vasculitis:
• Purpura, ischemic skin lesions
• Mononeuritis multiplex
• Hematuria, proteinuria,
Vasculitis: • Purpura ... purpura: Strong ... purpura • Pauci ... purpura, joint ... purpura (lower
Vasculitis Involving the Skin - Differential Diagnosis Framework

Primary: 50% Cutaneous Vasculitis: Leukocytoclastic Vasculitis
Secondary: CTD: SLE, RA
Involving the Skin - Differential ... Vessel: Petechiae, Palpable ... purpura, Hemorrhagic ... A (HSP) - Anti-C1q ... #rheumatology #differential