We report a case of leukemoid reaction resulting from granulocyte colony-stimulating factor producing urothelial carcinoma of the renal pelvis as evidenced on immunohistochemical analysis.

• 我们提供一个罕见的病例是有关肾盂泌尿上皮癌分泌白血球生长激素导致类白血病反应。并且也用免疫特殊染色来证实。