81 results
Intrinsic Renal Disease - Differential Diagnosis
Vascular:
 • Macrovascular: Renal artery occlusion, Fibromuscular disease
 • Microvascular: TTP/HUS,
, Amyloidosis, MPGN ... • Nephritic: RPGN ... , IgA, Alport, MPGN
Membranoproliferative Glomerulonephritis (MPGN) AKA: Mesangiocapillary GN
 • Active Urine Sediment (dysmorphic RBC, RBC casts, +/- proteinuria)
Glomerulonephritis (MPGN ... dysmorphic RBC, RBC casts ... Complement-Mediated MGPN ... , CFHR5 neph) MPGN ... Glomerulonephritis #MPGN
Rapidly Progressive Glomerulonephritis (RPGN)
RPGN has three primary pathophysiologic causes differentiated by immunofluorescence

Immune Complex Mediated (granular staining):
Glomerulonephritis (RPGN ... ) RPGN has three ... pathophysiologic causes ... StanfordChiefs #RPGN
Rapidly Progressive Glomerulonephritis (RPGN) 
 - Loss of kidney function over a short period of tirne
Glomerulonephritis (RPGN ... Glomerulonephritis #RPGN
Acanthocyte on Urine Microscopy

Not a spaceship, not a UFO, just an acanthocyte caught “flying” in dark
presentation of RPGN
Type IV Hypersensitivity: Pathogenesis and clinical findings
Definition: Unique because it is entirely T-Cell mediated; exposure to
mediated; exposure to allergen ... causes development ... of allergen-specific ... Allergic reaction ... Initial exposure to allergen
Angioedema - Classification Diagnosis and Treatment
Types of Angioedema:
 • Acute allergic angioedema - Usually occurs with
Angioedema: • Acute allergic ... exposure • Non-allergic ... cell-mediated in > 90% of cases ... or avoiding the allergen ... Treatment #management #allergy
Cryoglobulinemia Classification Types

Type 1: Monoclonal IgM (rarely IgG/lgA)
 • Raynaud phenomenon, Digital ulcers/gangrene, Livedo reticularis, Hyperviscosity
Liver, kidney (MPGN
Eosinophils (Eos) and hypereosinophilia (HE)
Caused by eosinophilopoietic cytokines
Common causes:
 - Drug reaction
 - Helminth infection
 -
hypereosinophilia (HE) Caused ... cytokines Common causes ... infection - Allergic ... disease Rare causes ... + T cells) - Allergic
Eosinophilia - Differential Diagnosis Algorithm
Idiopathic Eosinophilia
Primary Eosinophilia:
 • Primary hypereosinophilic syndrome
 • Eosinophilic Leukemia
 • MPN/MDS
Eosinophilic Leukemia • MPN ... histiocytosis • Allergic ... Diagnosis #Algorithm #allergy