Over-distended ur...
Over-distended urinarry bladder ( 35 cc ) with wall thickening / trabeculations. Bilateral hydronephrosis.
Modality: Diagram

- “ Asymptomatic 2nd gravida patient presents for 20-week anomaly scan. There is mild oligohydramnios. There is the presence of a keyhole sign favorin...”

Used in the following article:

  • Keyhole sign (posterior urethral valves) - “ The keyhole sign is an ultrasonographic sign seen in boys with posterior urethral valves. It refers to the appearance of the proximal urethra (whi...”

View full size version of Posterior urethral valve - antenatal ultrasound

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