14 results
Vasculitis and Vasculitides - Differential Diagnosis Framework

When to Consider Vasculitis:
 • Purpura, ischemic skin lesions
 •
tract, and often causes ... often involved • Hypocomplementemic ... Urticaria and hypocomplementemia ... Vasculitis: + MPO-ANCA ... against MPO • Complement
Rapidly Progressive Glomerulonephritis (RPGN)
RPGN has three primary pathophysiologic causes differentiated by immunofluorescence

Immune Complex Mediated (granular staining):
pathophysiologic causes ... staining): • Low Complement ... Idiopathic • Normal Complement ... Glomerulonephritis #Vasculitis ... differential #diagnosis #algorithm
Acute Kidney Injury (AKI) - Differential Diagnosis Framework
Pre-Renal:
 • Hypovolemia, Cardiorenal, Distributive Shock, HRS, Hypercalcemia, Renal
Acute Kidney Injury ... Emboli, Thrombosis, Vasculitis ... • GN: ANCA, Anti-GBM ... Diagnosis #nephrology #causes ... #algorithm
Vasculitis - Differential Diagnosis Framework

When to Consider Vasculitis:
• Purpura, ischemic skin lesions
• Mononeuritis multiplex
• Hematuria, proteinuria,
: ANCA Associated ... Pauci Immune (ANCA ... tract, and often causes ... Elevated AST ALT • Hypocomplementemia ... ) • Hypocomplementemic
Acute Kidney Injury - AKI Workup Algorithm and Differential Diagnosis
Baseline Investigations: full blood count with differential,
Acute Kidney Injury ... - AKI Workup Algorithm ... osmolarity If cause ... Glomerulonephritis / Vasculits ... : ANCA, ANA, Anti-GBM
Purpura - Differential Diagnosis Framework

Non-blanchable, dark red to purple, hemorrhagic skin lesions that result from leakage
disorders, or other causes ... • Secondary Causes ... - APLS • Acute ... • Ig A vasculitis ... Cryoglobulinemia (MIXED) • ANCA
Cryoglobulinemia Summary

Cryoglobulins:
 • Cryoglobulins are Igs in the serum that precipitate in vitro at temperatures below
• They can cause ... Cryoglobulins Cause ... • Low serum C4 complement ... DDX: • ANCA (Antineutrophil ... • Vasculitis
Causes of Extravascular and Intravascular Hemolysis - Differential Diagnosis Algorithm
Extravascular - Spleen and RES-mediated hemolysis
 -
Causes of Extravascular ... Differential Diagnosis Algorithm ... perfringens - Complement-Mediated ... anemia • Acute ... #Causes #Hematology
Recommended initial testing for patients being evaluated for glomerular disease 

24-hour urine collection - Quantify proteinuria.
or alternative complement ... infections are common causes ... ANA - Screen for ... ANCA - Screen for ... ANCA-related vasculitis
BEE Syndromes - Immune-mediated conditions affecting the brain, eye, and ear

Visual or auditory symptoms in conjunction
Inflammatory causes ... Cogan syndrome • Acute ... spectrum disorder • ANCA-associated ... vasculitides