17 results
Hematuria - Differential Diagnosis Framework

Gross Hematuria: Red/Dark urine
 • 1ml blood/liter urine can induce color change
urine sediment Microscopic ... hematuria syndrome ... : - RBC casts ... Causes of Hematuria ... microscopic and
Algorithmic Approach to Acute Interstitial Nephritis
When to suspect AIN? (not sensitive)
 • AKI, AKD, rapidly progressive
sterile pyuria, WBC casts ... eosinophiluria, microscopic ... hematuria, mild ... tubular proteinuria, granular ... casts/RTE; blend
Atlas of Urine Microscopy Findings
 • Epithelial cells - Normal
 • Renal tubular cells - Acute
• Red cell casts ... • White cell casts ... • Hyaline casts ... disease • Granular ... casts - More significant
Urine Microscopy - Casts
Acellular Casts
 • Hyaline Casts - Consists of only precipitated Tamm-Horsfell protein without
Urine Microscopy ... but can be seen in ... suggestive of nephrotic sydnrome ... ) • Granular Casts ... #Urine #Microscopy
Urinary Casts and Disease Associations
Hyaline - May be nonspecific; seen in normal individuals or during severe
Urinary Casts and ... breakdown of cellular casts ... casts are seen ... 34t5DgJ #Urinary #Casts ... #Differential #Microscopy
Causes of Acute Kidney Injury (AKI) - Differential Diagnosis Algorithm
Acute Kidney Injury (AKI) - Acute increase
Acute increase in ... • Hepatorenal syndromes ... Epithelial cell casts ... polyangiitis /microscopic ... #Causes
Pulmonary Renal Syndromes - OnePager Summary
Autoimmune ANCA vasculitis (AAV): GPA (granulomatous with polyangiitis), EGPA (eosinophilic granulomatosis
polyangiitis), MPA (microscopic ... Goodpasture's cause ... FINDINGS: • U/A: microscopic ... or gross hematuria ... , RBC casts, low
Renal Nutcracker Syndrome Pathophysiology
Nutcracker syndrome = compression of the left renal vein between the aorta and
Renal Nutcracker ... Nutcracker syndrome ... Can cause microscopic ... /gross hematuria ... +/- flank pain,
Approach to Microscopic Hematuria 

Microscopic hematuria is often incidental but may be associated with urologic malignancy.
Hematuria Microscopic ... RBC's, cellular casts ... creatinine, or HTN in ... Repeat urinalysis in ... with cystoscopy & renal
ANA (Antinuclear Antibody) and ANCA (Antineutrophil cytoplasmic antibodies)
 • Systemic lupus erythematosus
   1. Anti-dsDNA
of cases) 2 ... 30—70% of cases ... • Sjögren syndrome ... Vasculitis: • Microscopic ... polyangiitis without renal