7 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
Pulmonary Renal Syndromes and Mimics - Differential Diagnosis Framework
Diffuse alveolar hemorrhage + rapidly progressive glomerulonephritis
90%:
 -
Diagnosis Framework Diffuse ... hemorrhage + rapidly progressive ... glomerulonephritis ... anti-GBM) 10%: - Low Complement ... Vasculitis - Normal Complement
Causes of Acute Kidney Injury (AKI) - Differential Diagnosis Algorithm
Acute Kidney Injury (AKI) - Acute increase
Differential Diagnosis Algorithm ... Malignancy Rapidly Progressive ... Glomerulonephritis ... IgA, post-strep, lupus ... legionella) • Immune (lupus
SLE (Systemic Lupus Erythematosus)

Suspect:
Clinical evidence of (fatigue, rash, photosensitivity, inflammatory arthritis, weight loss, and fever) and
anti-Smith Ab, low complements ... ) • Endocrine disorders ... pneumonitis • Diffuse ... enteropathy, and diffuse ... RNP antibodies, Complement
Cryoglobulinemia Summary

Cryoglobulins:
 • Cryoglobulins are Igs in the serum that precipitate in vitro at temperatures below
Skin ulcers - Glomerulonephritis ... hematological disorders ... to Autoimmune Disorders ... • Low serum C4 complement ... (e.g. systemic lupus
Lymphomas and Lymphoproliferative Disorders - Differential Diagnosis Algorithm
Hodgkin Lymphoma ~40% - Characteristic For Reed-Sternberg (RS) Cells
Lymphoproliferative Disorders ... Differential Diagnosis Algorithm ... system (node) with progression ... lymphadenopathy more diffuse ... #differential #algorithm
Vasculitis and Vasculitides - Differential Diagnosis Framework

When to Consider Vasculitis:
 • Purpura, ischemic skin lesions
 •
proteinuria, rapidly progressing ... - Necrotizing glomerulonephritis ... inflammation Others: • Lupus ... such as systemic lupus ... against MPO • Complement