13 results
Rapidly Progressive Glomerulonephritis (RPGN)
RPGN has three primary pathophysiologic causes differentiated by immunofluorescence

Immune Complex Mediated (granular staining):
Rapidly Progressive ... staining): • Low Complement ... Post-strep GN, Lupus ... RPGN #Rapidly #Progressive ... differential #diagnosis #algorithm
Dysphagia - Differential Diagnosis Algorithm
Oropharyngeal - Can't initiate swallow, Cough/nasal regurg when attempting to swallow
Esophageal
Differential Diagnosis Algorithm ... Intermittent: Diffuse ... 1.5 cm - Non-Progressive ... esophagitis - Progressive ... Differential #Diagnosis #Algorithm
Myositis and Myopathies
Polymyositis 
 • Progressive, symmetric muscle weakness 
 • Elevated CK, +Anti-Jo, +Anti-Mi2
Dermatomyositis
Polymyositis • Progressive ... Dermatomyositis • Progressive ... Anti-retrovirals, Gemcitabine Lupus ... Myopathy • Diffuse ... uncommon 5-15% of lupus
Pulmonary Renal Syndromes and Mimics - Differential Diagnosis Framework
Diffuse alveolar hemorrhage + rapidly progressive glomerulonephritis
90%:
 -
Diagnosis Framework Diffuse ... hemorrhage + rapidly progressive ... anti-GBM) 10%: - Low Complement ... Vasculitis - Normal Complement
Causes of Diffuse Lymphadenopathy - Differential Diagnosis Algorithm
Reactive:
 - Systemic Inflammatory
     •
Causes of Diffuse ... Differential Diagnosis Algorithm ... • Systemic Lupus ... Hodgkin's Lymphoma #Diffuse ... Differential #Diagnosis #Algorithm
Hair Loss (Alopecia) - General (Diffuse and Focal) Differential Diagnosis Algorithm

DIFFUSE
Scarring - Irreversible-biopsy required
 • Lupus
Differential Diagnosis Algorithm ... DIFFUSE Scarring ... Irreversible-biopsy required • Lupus ... • Discoid lupus ... Differential #Diagnosis #Algorithm
Causes of Acute Kidney Injury (AKI) - Differential Diagnosis Algorithm
Acute Kidney Injury (AKI) - Acute increase
Differential Diagnosis Algorithm ... Malignancy Rapidly Progressive ... IgA, post-strep, lupus ... legionella) • Immune (lupus ... Differential #Diagnosis #Algorithm
Causes of Hemoptysis - Differential Diagnosis Algorithm
Massive Hemoptysis (>I00 mL in 24 hours)
 • Malignancy
 •
Differential Diagnosis Algorithm ... • Bronchitis Diffuse ... Vasculitis • Lupus ... Differential #Diagnosis #Algorithm
SLE (Systemic Lupus Erythematosus)

Suspect:
Clinical evidence of (fatigue, rash, photosensitivity, inflammatory arthritis, weight loss, and fever) and
SLE (Systemic Lupus ... anti-Smith Ab, low complements ... pneumonitis • Diffuse ... enteropathy, and diffuse ... RNP antibodies, Complement
Causes of Interstitial Lung Disease - Differential Diagnosis Algorithm
Idiopathic Interstitial Pneumonia
 • (UIP) Usual Interstitial Pneumonia
Differential Diagnosis Algorithm ... Pneumonia - slowly progressive ... Arthritis, Systemic Lupus ... Differential #Diagnosis #Algorithm