[The laparoscopic left-sided renal tumor enucleation with synchronous cyst removal in the right kidney without changing port positions].

Bilateral synchronous kidney alterations which need to be treated surgically are rare. Nevertheless, they are known and present a difficult situation with respect to the access and type of operation. Conventional open surgery (laparotomy, bilateral flank incisions) is always combined with severe tissue trauma, whereas minimally invasive techniques are often chosen for patients with little previous surgery and less complicated pathology. It is believed that especially for synchronous bilateral kidney surgery, laparoscopy is a very good option even if patients have had extensive previous surgery.