We will present an unusual case of endometrioid carcinoma that recurred in the upper urinary tract, showing an intraluminal spread, 11 years after hysterectomy for uterine corpus cancer. The case is a 72-year-old female who was referred to us for treatment of left ureteral cancer, at first. Nephroureterectomy was performed and histological examination showed endometrioid carcinoma similar to that resected 11 years earlier. A possible pathogenesis of this case will be discussed.