PMC5724982_01
A (Left) - An old IVP shows mild hydroureteronephrosis, B (Right) - recent IVP showing similar findings with preserved function.
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IVP 3 years ago revealed lower ureteric obstruction (Fig. 1A), for which an urologist elsewhere had done retrograde ureteric dilatation with DJ stenting. A recent IVP (Fig. 1B) revealed persistent obstruction with preserved renal function.
Intraoperative picture showing dilated upper ureter (UU) with narrowed lower ureter (LU) caused due to compression by crossing vessels (CV). The Crossing vessels lie in close proximity to Cord structures (CS) and the Vas deferens (V).
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An anomalous vessel, probably an aberrant gonadal vein was compressing the lower ureter causing narrowing with upstream dilatation (Fig. 2).
Histopathology specimen of resected ureter showing significant lamina propria fibrosis and intramural fibrosis (arrows with F) on the left. A normal ureter (N) for comparative purposes depicted on the right.
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Histopathology of the resected ureteric segment revealed significant fibrosis in the lamina propria and intramuscular regions (Fig. 3).