Kidney CT Appearances
Renal Tuberculosis (TB) CT Findings
- Thickening of the collecting system
- Hypoattenuating granulomas of the parenchyma
- Large granulomas may appear as masses
- Ulceration
- Fibrosis
- Homogeneous calcification, 50-120 HU
- Distortion of collecting system
- Irregularities of the renal contour, may appear “moth eaten”
- May form abscesses which can rupture
- Late stage may show calcified kidneys

Other Information About Renal Tuberculosis (TB)
Etiology:
- Bacterial disease
- Patients with HIV or organ transplant are more susceptible
Epidemiology:
- Most common in Africa and South Asia but has been documented in many areas of the world
Presentation:
- Flank pain
- Hematuria
- Dysuria
Prognosis:
- Renal TB can be treated with antibiotics
Related Pearls: Renal Tuberculosis
Related Lectures:
Renal Infection Thru Infarction: What You Need to Know - Part 2
