Pyelolymphatic backflow demonstrated on computed tomography urography in acute ureteric obstruction.
Ravi Jineshkumar Jain, Aman Kumar Jasuja, Sanjay Dhangar
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From the abstract
A man in his early 40s presented with acute right flank pain, vomiting and dysuria. Ultrasonography demonstrated an obstructing right upper ureteric calculus with a contralateral renal calculus. CT urography revealed fine, serpiginous contrast-opacified tubular channels extending from the right renal pelvis into the retroperitoneum without evidence of urinoma.