title: Unexpected pathology during laparoscopic bariatric surgery.
abstract: BACKGROUND
  The popularity of bariatric surgery has increased in recent years with the escalating incidence of morbid obesity in our society. The improvement in minimally invasive technology and the increased number of laparoscopic bariatric procedures being performed have resulted in the discovery of unexpected pathology not suspected preoperatively. The authors hypothesized that the occurrence of unexpected pathology is not associated with immediate adverse outcomes during laparoscopic bariatric procedures.
  
  
  METHODS
  From December 2002 to June 2004, 398 patients underwent laparoscopic bariatric surgery for morbid obesity. A retrospective chart review was performed to determine the incidence of unexpected findings and their effect on patient results.
  
  
  RESULTS
  Nine unexpected pathologic lesions were found in eight patients (2%). The findings included lesions on the small bowel (n = 3), stomach (n = 4), and liver (n = 2). In all cases except one (for which a biopsy was performed), the abnormalities were found and removed laparoscopically. The final pathology showed gastric leiomyomas (n = 2), gastric gastrointestinal stromal cell tumors (n = 2), ectopic pancreatic tissue (n = 2), arteriovenous malformation (n = 1), biliary adenoma (n = 1), and fibrosed hemangioma (n = 1). The planned bariatric procedures were completed for all the patients without incident. No complications occurred postoperatively, and all were discharged in 1 to 3 days (mean, 2 days).
  
  
  CONCLUSIONS
  Unexpected findings occur with relative frequency during laparoscopic bariatric procedures. Biopsy or removal of these lesions usually does not increase complications nor preclude continuation of the planned bariatric procedure.
authors.affiliation: Section of Minimally Invasive Surgery, Department of Surgery, University of Tennessee Health Science Center, Memphis, TN 38163, USA.
authors.forename: C W
authors.initials: CW
authors.lastname: Finnell
authors.forename: A K
authors.initials: AK
authors.lastname: Madan
authors.forename: C A
authors.initials: CA
authors.lastname: Ternovits
authors.forename: S J
authors.initials: SJ
authors.lastname: Menachery
authors.forename: D S
authors.initials: DS
authors.lastname: Tichansky
mesh_terms: D000328:Adult; D000368:Aged; D050110:Bariatric Surgery / Q000706:statistics & numerical data*; D004066:Digestive System Diseases / Q000150:complications / Q000453:epidemiology*; D005260:Female; D006801:Humans; D015994:Incidence; D033162:Incidental Findings; D010535:Laparoscopy; D008297:Male; D008875:Middle Aged; D009767:Obesity, Morbid / Q000150:complications / Q000601:surgery*; D012189:Retrospective Studies