title: Port site metastases after robot-assisted surgery: a systematic review.
abstract: BACKGROUND
  Robotic surgery is a new technique and the aim of this study was to review the available literature on robotic port-site metastasis in oncological patients.
  
  
  METHODS
  The results of this study were retrieved after performing a systematic electronic search in PubMed, Scopus and Cochrane databases.
  
  
  RESULTS
  In total 204 patients were included in the study, of which five had robotic port-site metastasis. Their age ranged from 35-77 years. The types of cancers causing port-site metastasis were one squamous cell cervical carcinoma, two cervical adenocarcinomas, one gallbladder carcinoma and one transitional cell bladder carcinoma. The port-site metastasis occurred from 3 weeks up to 18 months postoperatively with the tumor measuring from 1.1 to 10.5 cm.
  
  
  CONCLUSIONS
  Port-site metastasis is an extremely rare complication of robotic surgery. No safe conclusion can be drawn, but the aim of this study was to raise doctors' suspicion levels to such a rare new entity.
authors.affiliation: IASO Maternity Hospital, Athens, Greece.
authors.forename: Christos
authors.initials: C
authors.lastname: Iavazzo
authors.forename: Ioannis D
authors.initials: ID
authors.lastname: Gkegkes
mesh_terms: D000328:Adult; D000368:Aged; D002277:Carcinoma / Q000453:epidemiology* / Q000556:secondary*; D005260:Female; D006801:Humans; D015994:Incidence; D010535:Laparoscopy / Q000706:statistics & numerical data*; D008297:Male; D008875:Middle Aged; D009366:Neoplasm Seeding; D011183:Postoperative Complications / Q000453:epidemiology*; D012307:Risk Factors; D012371:Robotics / Q000706:statistics & numerical data*; D025321:Surgery, Computer-Assisted / Q000706:statistics & numerical data*
keywords: metastasis; port-site; robotic-assisted surgery