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

Immune Complex Mediated (granular staining):
staining): • Low Complement ... Idiopathic • Normal Complement ... With associated pulmonary ... #differential #diagnosis ... #algorithm #rheumatology
Membranoproliferative Glomerulonephritis (MPGN) AKA: Mesangiocapillary GN
 • Active Urine Sediment (dysmorphic RBC, RBC casts, +/- proteinuria)
Membranoproliferative Glomerulonephritis ... staining (lg + complement ... MGPN • Complement ... Membranoproliferative #Glomerulonephritis ... MPGN #nephrology #diagnosis
Pulmonary Renal Syndromes and Mimics - Differential Diagnosis Framework
Diffuse alveolar hemorrhage + rapidly progressive glomerulonephritis
90%:
 -
Pulmonary Renal ... - Differential Diagnosis ... rapidly progressive glomerulonephritis ... anti-GBM) 10%: - Low Complement ... #Differential #Diagnosis
Causes of Hypocomplementemia - CHAMPS Mnemonic
C - Cryoglobulinemia (85%), C3 glomerulopathy, cirrhosis
H - Heavy Chain deposition
Membranoproliferative glomerulonephritis ... Post/pauci immune glomerulonephritis ... Hypocomplementemia #Low #Complement ... CHAMPS #Mnemonic #diagnosis
Vasculitis and Vasculitides - Differential Diagnosis Framework

When to Consider Vasculitis:
 • Purpura, ischemic skin lesions
 •
- Differential Diagnosis ... progressing GN • New pulmonary ... and/or pulmonary ... Differential Diagnosis ... against MPO • Complement
Causes of Hematuria - Differential Diagnosis Algorithm
Red blood cells on urine microscopy. Must exclude false positives
- Differential Diagnosis ... Algorithm Red ... • Lupus glomerulonephritis ... #Differential #Diagnosis ... #Algorithm #Causes
Pulmonary Renal Syndromes - OnePager Summary
Autoimmune ANCA vasculitis (AAV): GPA (granulomatous with polyangiitis), EGPA (eosinophilic granulomatosis
renal failure (glomerulonephritis ... multiplex WORKUP & DIAGNOSIS ... laden macrophages (diagnostic ... progressive (crescentic) glomerulonephritis ... #differential #diagnosis
Hypersensitivity Types and Their Mechanisms
Type I - lgE - Soluble antigen
 - Allergen-specific lgE antibodies bind
antigen, leading to complement ... Complement activation ... Post-streptococcal glomerulonephritis ... Pathophysiology #Allergy #Diagnosis
Post Pulmonary Embolism Syndrome - Diagnostic Algorithm

Annals of the ATS @AnnalsATS

#PostPE #Pulmonary #Embolism #Syndrome #Diagnosis #Algorithm
Post Pulmonary Embolism ... Syndrome - Diagnostic ... Algorithm Annals ... Embolism #Syndrome #Diagnosis ... #Algorithm
Diagnostic algorithm for idiopathic pulmonary fibrosis, in part adapted from the ATS/ERS consensus statement. HRCT =
Diagnostic algorithm ... for idiopathic pulmonary ... #IPF #UIP #Algorithm ... #Diagnosis #Idiopathic ... #Pulmonary #Fibrosis