Aortic abdominal dissection after retroperitoneal laparoscopic paraaortic lymphadenectomy.

•Acute aortic abdominal dissection is a rare complication of retroperitoneal laparoscopic paraaortic lymph node dissection.•Aortic dissection may be part of differential diagnoses in patients with groin and abdominal pain after paraaortic staging.•Uncomplicated type B aortic abdominal dissection should be managed during the subacute phase.•Early contrast-enhanced computed tomography should be performed in case of abdominal pain after paraaortic lymphadenectomy.•Retroperitoneal laparoscopic paraaortic lymph node dissection should be performed at referral cancer centers.