9 results
Urine Microscopy and Casts - Image Atlas Key

- Squamous Epithelial Casts
- Transitional Epithelial Cells
- Renal Tubular
Urine Microscopy ... Key - Squamous ... Epithelial Cells - Renal ... Granular Casts - WBC ... Cast - RBC Cast
Pathologic Red Blood Cell (RBC) Morphologies and Associated Diseases

Acanthocyte (spur cell),  
Basophilic stippling, 
Bite cell,
Pathologic Red Blood ... Cell (RBC) Morphologies ... cell, Other RBC ... Howell-Jolly bodies #RBC ... #Atlas #Microscopy
Hematuria - Differential Diagnosis Framework

Gross Hematuria: Red/Dark urine
 • 1ml blood/liter urine can induce color change
: 3 or more RBC/ ... : - RBC casts ... - Dysmorphic RBC ... causes #urology #nephrology ... blood
Hematuria Workup and Diagnosis Algorithm
 • Confirm hematuria → Urinalysis >3 RBCs/HPF, exclude mimics, repeat testing
of UTI, urine WBCs ... (proteinuria, RBC ... → Refer to Nephrology ... for renal biopsy ... Workup #urology #blood
Red Blood Cell (RBC) Morphology Atlas
 • Microcytic - Iron-deficiency anemia, Thalassemia, Sideroblastic anemia, Lead poisoning
Red Blood Cell ( ... RBC) Morphology ... • Burr cells - Renal ... coagulopathy (DIC) #RBC ... #key #diagnosis
Pulmonary Renal Syndrome

Definition: Diffuse alveolar hemorrhage + Glomerulonephritis
Presentation (Pulmonary and renal manifestations can occur weeks apart):
Dyspnea, Fever, Hematuria ... polyangiitis, Microscopic ... Investigations • Labs: CBC ... proteinuria, dysmorphic RBCs ... differential #diagnosis #nephrology
Pulmonary Renal Syndromes - OnePager Summary
Autoimmune ANCA vasculitis (AAV): GPA (granulomatous with polyangiitis), EGPA (eosinophilic granulomatosis
, proteinuria, hematuria ... coagulopathy) • CBC ... reveals increasing blood ... or gross hematuria ... , RBC casts, low
Urinalysis & Urine Sodium 
Theophilus Protospatharius, a seventh-century physician who wrote the first manuscript focused exclusively
Microscopic exam ... • Red blood cells ... (RBC) ... used with normal renal ... casts #glucosuria #hematuria
Vasculitis and Vasculitides - Differential Diagnosis Framework

When to Consider Vasculitis:
 • Purpura, ischemic skin lesions
 •
multiplex • Hematuria ... pulmonary and renal ... PR3-ANCA): • Microscopic ... Large Vessel: Blood ... Lab Tests: • CBC