MCQ – 82330

Keyhole sign on ultrasound is seen in – 

 

A.	Polycystic kidney
B.	Hydronephrosis
C.	Chronic pyelonephritis
D.	Posterior urethral valves

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Correct Answer � D Explanation

Answer- D. Posterior urethral valves

The keyhole sign is an ultrasonographic sign seen in boys with posterior urethral valves.

lt refers to the appearance of the proximal urethra (which is dilated) and associated thick-walled distended bladder which on ultrasound may resemble a keyhole.