title: Robot-assisted excision of a large retroperitoneal schwannoma.
abstract: BACKGROUND
  There are few case reports of retroperitoneal tumor excision using the robotic technique. We describe a case of a 13 × 9 × 7- cm retroperitoneal schwannoma that was excised using robot-assisted surgery to provide a minimally invasive benefit to the patient.
  
  
  METHODS
  A 45-year-old woman presented with a right paracaval retroperitoneal lump with well-defined margins displacing the inferior vena cava, the right kidney, the head of pancreas, and the duodenum. She underwent a robot-assisted excision of the tumor using the da Vinci Si HD surgical system using three robotic arms. The biopsy results revealed a well-encapsulated schwannoma diffusely positive for S100. The patient was discharged on the third postoperative day and was still doing well at 1-month follow-up.
  
  
  CONCLUSIONS
  Use of robotic technology assists in providing minimally invasive benefits to the patient. It is a safe and effective technique for retroperitoneal surgery.
authors.affiliation: Institute of Minimal Access, Metabolic & Bariatric Surgery, Sir Ganga Ram Hospital, New Delhi 110060, India. bindal.vivek@gmail.com.
authors.forename: Vivek
authors.initials: V
authors.lastname: Bindal
authors.affiliation: Institute of Minimal Access, Metabolic and Bariatric Surgery, Sir Ganga Ram Hospital, New Delhi, India.
authors.forename: Parveen
authors.initials: P
authors.lastname: Bhatia
authors.affiliation: Institute of Minimal Access, Metabolic and Bariatric Surgery, Sir Ganga Ram Hospital, New Delhi, India.
authors.forename: Sudhir
authors.initials: S
authors.lastname: Kalhan
authors.affiliation: Institute of Minimal Access, Metabolic and Bariatric Surgery, Sir Ganga Ram Hospital, New Delhi, India.
authors.forename: Mukund
authors.initials: M
authors.lastname: Khetan
authors.affiliation: Institute of Minimal Access, Metabolic and Bariatric Surgery, Sir Ganga Ram Hospital, New Delhi, India.
authors.forename: Suviraj
authors.initials: S
authors.lastname: John
authors.affiliation: Institute of Minimal Access, Metabolic and Bariatric Surgery, Sir Ganga Ram Hospital, New Delhi, India.
authors.forename: Asfar
authors.initials: A
authors.lastname: Ali
authors.affiliation: Institute of Minimal Access, Metabolic and Bariatric Surgery, Sir Ganga Ram Hospital, New Delhi, India.
authors.forename: Rahul
authors.initials: R
authors.lastname: Singh
authors.affiliation: Institute of Minimal Access, Metabolic and Bariatric Surgery, Sir Ganga Ram Hospital, New Delhi, India.
authors.forename: Alok
authors.initials: A
authors.lastname: Rath
authors.affiliation: Institute of Minimal Access, Metabolic and Bariatric Surgery, Sir Ganga Ram Hospital, New Delhi, India.
authors.forename: Sushant
authors.initials: S
authors.lastname: Wadhera
authors.affiliation: Institute of Minimal Access, Metabolic and Bariatric Surgery, Sir Ganga Ram Hospital, New Delhi, India.
authors.forename: Nikunj
authors.initials: N
authors.lastname: Bansal
mesh_terms: D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D010535:Laparoscopy / Q000379:methods*; D008875:Middle Aged; D009442:Neurilemmoma / Q000175:diagnosis / Q000601:surgery*; D012186:Retroperitoneal Neoplasms / Q000175:diagnosis / Q000601:surgery*; D012371:Robotics; D014057:Tomography, X-Ray Computed