[Laparoscopic nephron-sparing surgery for Wilms tumor: description of two cases].

Surgical resection is the mainstay of treatment for Wilms tumor. The research progress of the large study groups worldwide has reduced mortality. However, searching to minimize morbidity, the minimally invasive approach has been applied in selected patients. This article describes two cases of Wilms tumor managed with laparoscopic nephron sparing surgery. The case 1 with Beckwith-Wiedemann syndrome and bilateral disease, and the case 2 non-syndromic unilateral. The approach was intraperitoneally, without intraoperative complications. The follow-up to 18 months (case 1) and six months (case 2) did not have recurrence or metastatic disease.