<prompt> The most sensitive imaging modality to detect early renal tuberculosis is:Intravenous urographyComputed tomographyUltrasoundMagnetic resonance imaging  <response>: Genitourinary tuberculosis Investigations- Urine routine and microscopic examination- presence of pus cells- Urine culture and sensitivity- no growth within 48 hours. Sterile Pyuria- characteristic feature of GU TB- IOC for diagnosis of renal TB-CECT- Most sensitive investigation to detect the earliest changes in renal TB- IVP aka IVU 