7 results
Causes of Hemoptysis - Differential Diagnosis Algorithm
Massive Hemoptysis (>I00 mL in 24 hours)
 • Malignancy
 •
Massive Hemoptysis ... • Bronchitis Diffuse ... Vasculitis • ... Lupus Erythematosus ... #Massive
Vasculitis and Vasculitides - Differential Diagnosis Framework

When to Consider Vasculitis:
 • Purpura, ischemic skin lesions
 •
often involved • Hypocomplementemic ... Urticaria and hypocomplementemia ... inflammation Others: • Lupus ... such as systemic lupus ... against MPO • Complement
Pulmonary Renal Syndromes and Mimics - Differential Diagnosis Framework
Diffuse alveolar hemorrhage + rapidly progressive glomerulonephritis
90%:
 -
Pulmonary Renal ... Diagnosis Framework Diffuse ... anti-GBM) 10%: - Low Complement ... - Normal Complement ... Kumfer @AnnKumfer #Pulmonary
Rapidly Progressive Glomerulonephritis (RPGN)
RPGN has three primary pathophysiologic causes differentiated by immunofluorescence

Immune Complex Mediated (granular staining):
staining): • Low Complement ... Post-strep GN, Lupus ... With associated pulmonary ... Glomerulonephritis #Vasculitis ... differential #diagnosis #algorithm
Pulmonary Renal Syndrome

Definition: Diffuse alveolar hemorrhage + Glomerulonephritis
Presentation (Pulmonary and renal manifestations can occur weeks apart):
Definition: Diffuse ... ANCA-positive vasculitis ... ANCA-negative vasculitis ... Complex: Systemic lupus ... anti-CCP • CXR (diffuse
SLE (Systemic Lupus Erythematosus)

Suspect:
Clinical evidence of (fatigue, rash, photosensitivity, inflammatory arthritis, weight loss, and fever) and
anti-Smith Ab, low complements ... ANCA-associated vasculitis ... pneumonitis • Diffuse ... enteropathy, and diffuse ... RNP antibodies, Complement
Hemoptysis - Differential Diagnosis Framework
Massive Hemoptysis: >150-300 mL in 24h
Airway disease: 
 • Bronchitis, Bronchiectasis, Malignancy
Diagnosis Framework Massive ... Autoimmune: ANCA-Assoc vasculitis ... Vascular: • Diffuse ... Differential #Diagnosis #pulmonary