PMC4996587_01
Abdominal and pelvic CT scan revealing left-sided hydroureteronephrosis and delayed nephrogram, suggesting obstruction (A) and bladder mass (B) appearing to obstruct the left ureteral orifice.
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Imaging revealed left-sided hydroureteronephrosis (Fig. 1A) and a bladder mass (Fig. 1B).
Final pathology analysis showing (A) duct-like structures filled with inflammatory and microbial cells (blue arrow) and microbial overgrowth (red arrow). (B) Sample of ureteral orifice showing diffuse inflammation with necrotic change and focal microabscesses.
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Pathology analysis of the mucous plug revealed necrotic linear duct-like structures with purulent inflammation and microbial overgrowth consistent with sloughed renal papilla (Fig. 2A). The tissue resected from the site of the ureteral orifice had diffuse inflammatory changes with focal necrotizing changes and a few microabscesses (Fig. 2B).