We describe a woman with flank pain and hydronephrosis. Computed tomography (CT) urography and maximum intensity projection (MIP) reformatted images clearly showed that a long finger-like intraluminal filling defects mass in the left middle ureter. The pathologic biopsy by ureteroscopy revealed that the lesion mainly consists of benign fibrinoid necrosis. https://www.getpureroutine.com/special-pick-aus-309-darwin-to-penguin-shoal-fashion-great-offer/