11 results
Causes of Purpura - Differential Diagnosis
Non-PalpabIe → Palpable
 • Thrombocytopenia (HIT, ITP/HUS), Coagulation defects (DIC, warfarin
Causes of Purpura ... (HIT, ITP/HUS), ... (LCV), Immune complex ... cryoglobulins, IgA ... #Diagnosis #vasculitis
Vasculitis Involving the Skin - Differential Diagnosis Framework

Primary: 50% Cutaneous Vasculitis: Leukocytoclastic Vasculitis
Secondary: CTD: SLE, RA
- Differential Diagnosis ... Vessel: Petechiae, Palpable ... : - Ig A (HSP) ... Anti-C1q (Urticarial/LCV ... Disease • Cogan syndrome
Palpable Purpura seen in Henoch Schonlein Purpura (HSP, IgA Vasculitis)

55 year old male on tuberculosis treatment
, IgA Vasculitis ... pain involving knees ... #IgA #Vasculitis ... #clinical #photo ... dermatology #skin #rash #physicalexam
IgA Vasculitis – Henoch Scholein Purpura: Pathogenesis and Clinical Findings

 - Infectious Agents - 50% have
IgA Vasculitis – ... Pathogenesis and Clinical ... arthritis (especially knees ... #IgA #Vasculitis ... Pathophysiology #Diagnosis
Cryoglobulinemia Summary

Cryoglobulins:
 • Cryoglobulins are Igs in the serum that precipitate in vitro at temperatures below
• They can cause ... Cryoglobulins Cause ... : • Clinical triad ... of Palpable purpura ... • IgA vasculitis
Purpura - Differential Diagnosis Framework

Non-blanchable, dark red to purple, hemorrhagic skin lesions that result from leakage
- Differential Diagnosis ... Kasabach-Merritt syndrome ... CAUSES OF PALPABLE ... • Ig A vasculitis ... • HCV, HBV Not
Vancomycin induced Leukocytoclastic Vasculitis (LCV) of the Hand
70 M vertebral osteomyelitis on vancomycin and cefepime for
Presents with diffuse palpable ... Diagnosis? ... polyangiitis, HSP ... #dermatology #clinical ... #photo
Vasculitis - Differential Diagnosis Framework

When to Consider Vasculitis:
• Purpura, ischemic skin lesions
• Mononeuritis multiplex
• Hematuria, proteinuria,
Diagnosis Framework ... Differential Diagnosis ... of shoulder and hip ... tract, and often causes ... , IgA (cmpkx deposits
Vasculitis and Vasculitides - Differential Diagnosis Framework

When to Consider Vasculitis:
 • Purpura, ischemic skin lesions
 •
Schonlein Purpura (IgA ... tract, and often causes ... scleritis • Palpable ... Skin -> causing palpable ... • HBV HCV
Guillain-Barre Syndrome - Summary

Acute AIDP that presents with rapidly progressive flaccid weakness

Epidemiology:
 • 1-2 cases/100,000 per
Epidemiology: • 1-2 cases ... DTR’s • Onset: Few ... Guillain-Barre Clinical ... studies - EMG, NCV ... equina • GQ1b IgG