05/04/2026
โ๏ธ Check the answer below ๐
โ
Correct Answer: Putty kidney (Option 1)
๐ง Why Putty Kidney?
โ๏ธ Sterile pyuria โ classic clue for genitourinary tuberculosis (GUTB)
โ๏ธ Chronic infection โ caseation + calcification
โ๏ธ Leads to:
๐ Small, shrunken, extensively calcified kidney = โPutty kidneyโ
โก Rule Out Fast
โ Nephrocalcinosis โ diffuse calcification, not shrunken kidney
โ Staghorn calculus โ branching stone in pelvis (not entire kidney calcified)
โ Psoas calcification โ unrelated to kidney
๐ฏ Exam Pearl
๐ โSterile pyuria + calcified kidney = Renal TB โ Putty kidneyโ
๐ก Clinical Cracker
Whenever you see sterile pyuria, think tuberculosis firstโand if imaging shows a calcified, non-functioning kidney, the answer is Putty kidney ๐ฅ