title: Laparoscopic resection of adrenal teratoma.
abstract: BACKGROUND
  Teratoma is a germ-cell tumor that commonly affects the gonads. Its components originate in the ectoderm, endoderm, and mesoderm. Extragonadal occurrence is rare. Teratomas confined to the adrenal gland are exceptional; only 3 cases have been reported in the English-language literature. We report 2 cases of mature teratomas of the adrenal gland that were laparoscopically excised.
  
  
  METHODS
  Two patients (ages 8 and 61 years) were diagnosed with adrenal teratoma at our institution. Radiological examination showed a solid 8-cm adrenal lesion in both cases. Hormonal assessment was normal. Both patients underwent laparoscopic transperitoneal adrenalectomy.
  
  
  RESULTS
  Surgical time was 120 minutes and 50 minutes, respectively. One patient was discharged on postoperative day 2, and the other remained hospitalized until day 10. The latter patient required percutaneous drainage of a retroperitoneal collection. Both tumors were identified as mature cystic teratomas. No evidence was present of recurring disease in either patient.
  
  
  CONCLUSIONS
  Adrenal teratoma is rare. Laparoscopic transperitoneal adrenalectomy is a feasible, effective technique that enables excellent oncologic results. To our knowledge, this is the first report of laparoscopic adrenalectomy for pure adrenal teratoma.
authors.affiliation: Section of Endourology and Laparoscopic Urology, Department of Urology, Clinica Santa Maria, Santiago de Chile, Chile. OctavioCastillo@vtr.net
authors.forename: Octavio A
authors.initials: OA
authors.lastname: Castillo
authors.forename: Gonzalo
authors.initials: G
authors.lastname: Vitagliano
authors.forename: Matias
authors.initials: M
authors.lastname: Villeta
authors.forename: Leonardo
authors.initials: L
authors.lastname: Arellano
authors.forename: Oscar
authors.initials: O
authors.lastname: Santis
mesh_terms: D000310:Adrenal Gland Neoplasms / Q000175:diagnosis / Q000601:surgery*; D000315:Adrenalectomy / Q000379:methods*; D002648:Child; D005260:Female; D006801:Humans; D033162:Incidental Findings; D010535:Laparoscopy; D008297:Male; D008875:Middle Aged; D013724:Teratoma / Q000175:diagnosis / Q000601:surgery*