152 results
Causes of Purpura - Differential Diagnosis
Non-PalpabIe → Palpable
 • Thrombocytopenia (HIT, ITP/HUS), Coagulation defects (DIC, warfarin
Causes of Purpura ... - Differential ... (LCV), Immune complex ... #Differential # ... Diagnosis #vasculitis
Aortitis - Differential Diagnosis Framework
Non-Infectious Aortitis:
 • Vasculitides: Giant Cell Arteritis (GCA), Takayasu's arteritis, Cogan's Syndrome,
Aortitis - Differential ... Non-Infectious Aortitis: • Vasculitides ... ANCA associated vasculitis ... Erdheim-Chester), Immune ... swinndong #Aortitis #Differential
Vasculitis - Break down based on vessel size 
Distribution of vessel involvement by large vessel vasculitis,
Vasculitis - Break ... by large vessel vasculitis ... medium vessel vasculitis ... affected, although immune ... #Rheumatology #Differential
Causes of Thrombocytopenia - Differential Diagnosis Algorithm
 
Decreased Megakaryopoiesis
 • Aplastic Anemia
 • Toxic Damage (e.g.
Causes of Thrombocytopenia ... - Differential ... • Others Non-lmmune ... HUS • DIC • Vasculitis ... Diagnosis #Algorithm #Causes
Vasculitis Involving the Skin - Differential Diagnosis Framework

Primary: 50% Cutaneous Vasculitis: Leukocytoclastic Vasculitis
Secondary: CTD: SLE, RA
Vasculitis Involving ... the Skin - Differential ... : • Immune Complex ... Vasculitis: - ... #rheumatology #differential
Rapidly Progressive Glomerulonephritis (RPGN)
RPGN has three primary pathophysiologic causes differentiated by immunofluorescence

Immune Complex Mediated (granular staining):
pathophysiologic causes ... immunofluorescence Immune ... Goodpasture's) Pauci-immune ... Glomerulonephritis #Vasculitis ... #differential #
Vasculitis and Vasculitides - Differential Diagnosis Framework

When to Consider Vasculitis:
 • Purpura, ischemic skin lesions
 •
- Differential ... Necrotizing, pauci-immune ... respiratory tracts Immune ... tract, and often causes ... differential #diagnosis
Causes of Purpura - Differential Diagnosis
Disruption in Vascular Integrity: 
 • Trauma, Infection, Vasculitis, Drug induced
Causes of Purpura ... - Differential ... , Drug induced vasculitis ... nonpalpable #palpable #Causes ... #Differential #
Pulmonary Renal Syndrome

Definition: Diffuse alveolar hemorrhage + Glomerulonephritis
Presentation (Pulmonary and renal manifestations can occur weeks apart):
symptomatology Differential ... Syndromes: • Pauci-Immune ... ANCA-positive vasculitis ... Cryoglobulinemia) • Immune ... Renal #Syndrome #differential
ILD of Known Cause - Differential Diagnosis
Exposure:
 • Occupational: Asbestosis, Silicosis, Hypersensitivity, Pneumonitis
 • Treatment Related:
ILD of Known Cause ... - Differential ... Granulomatous DX with Vasculitis ... BrighamChiefs #ILD #Causes ... #Differential #