Curlicue ureter sign (sciatic hernia)

Last revised by Henry Knipe on 6 Mar 2024

The curlicue ureter sign 1 was described on intravenous pyelogram studies in cases of ureteral herniation into a sciatic hernia, causing a curled appearance of the herniated ureter. Although very rare, this sign is pathognomonic of ureterosciatic hernias. It can also be seen on CT urogram studies.

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