Sterile pyuria – Medicine MCQ

Sterile pyuria is characteristic of ?

A. Chronic hydronephrosis
B. Renal cell carcinoma
C. Renal tuberculosis
D. Nephroblastoma

Correct answer : C. Renal tuberculosis

Sterile pyuria

• Sterile pyuria refers to the presence of more than 5 white blood cells (WBC’s) per high power field in the absence of bacteria in a routine urine specimen
• It can be either due to various causes
  • Infectious etiology
  • Systemic conditions
  • Structural defects of kidney
  • Intrinsic renal pathology
• Although hydronephrosis can also cause sterile pyuria, it is a characteristic feature of renal tuberculosis

Read about the Causes of sterile pyuria