Abstract
This case report highlights the potential diagnostic pitfalls associated with subureteral transurethral injection (STING) of non-biodegradable materials like Teflon, which has been utilised for endoscopic correction of vesicoureteral reflux (VUR). A 27-year-old female with a history of VUR presented with left-sided loin pain, vomiting, and dysuria, which were initially thought to be due to distal ureteric stones. However, noncontrast computed tomography (CT) revealed the presence of calcific densities in the region of the distal ureter and vesicoureteric junction (VUJ) bilaterally, likely as a sequelae of previous Teflon injection treatment. A conservative management approach was undertaken, and follow-up evaluations, including MAG3 renograms, showed normal drainage and stable split renal function. This case emphasises the importance of a comprehensive medical history and vigilance in avoiding unnecessary imaging or surgical interventions for patients with a previous history of STING.
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