Tabriz University of Medical Sciences Medical Journal of Tabriz University of Medical Sciences 2783-2031 40 5 2018 12 05 Retroperitoneal laparoscopic partial nephrectomy, two cases of kidney tumor for the first time in Iran 102 105 EN Alireza Farshi https://orcid.org/0000-0003-1456-6155 Emadaddin Rezaei Talarposhty https://orcid.org/0000-0001-6598-7342 Journal Article 2016 12 25 Partial Nephrectomy is the preferred surgical procedure for those tumors (<7 cm) which are restricted to kidneys. The most of the partial nephrectomy laparoscopic cases are performed transperitoneally. Here in we report two cases of renaj masses smaller than 7 cm which underwent laparoscopic partial nephrectomy by retroperitoneal for the first time in Iran. The first patient was a 59 years old man with a 50*55 mm lesion. The second patient was a 65 years old woman with a 27 mm lesion. Both lesions were located in left renal inferior pole. The durations of warm ischemia were 28 and 24 minutes, respectively.