title: A rare retrorectal presentation of a bronchogenic cyst: A case report.
abstract: BACKGROUND
  Bronchogenic cysts are rare abnormalities and a retrorectal presentation is exceptional. Its natural history is not known, but malignant transformation is quite rare. Retrorectal bronchogenic cysts are usually asymptomatic.
  
  
  METHODS
  We present the case of a 36-year-old young man with a past medical history of HIV seropositivity who underwent a procedure to excise a sacral coccyx cyst at another surgical center in February 2009. A histological examination confirmed it was a sacral cyst that was resected in sano. The patient presented with a recurrence of the cyst, and this report describes the combined surgical procedure using a double sacrococcygeal and abdominal approach.
  
  
  CONCLUSIONS
  A complete excision without cyst rupture is recommended to reduce the risk of local recurrence and malignant transformation, as previously reported. Resection can ben performed using multiple approaches depending on the cyst's location
  
  
  CONCLUSIONS
  Herein, we report the case of a retrorectal bronchogenic cyst in a 36 years old man who was initially treated for a pilonidal cyst. A double surgical approach (abdominal and Kraske) resulted in complete resectioning with no reccurrence.
authors.affiliation: Department of Digestive and Colorectal Surgery, Edouard Herriot University Hospital, Lyon, France. Electronic address: arnaud.pasquer@chu-lyon.fr.
authors.forename: Arnaud
authors.initials: A
authors.lastname: Pasquer
authors.affiliation: Department of Digestive and Colorectal Surgery, Edouard Herriot University Hospital, Lyon, France.
authors.forename: Filbert
authors.initials: F
authors.lastname: Djeudji
authors.affiliation: Department of Anatomopathology, Edouard Herriot University Hospital, Lyon, France; University Claude Bernard Lyon I, 8 Avenue Rockefeller, Lyon, France.
authors.forename: Valérie
authors.initials: V
authors.lastname: Hervieu
authors.affiliation: Department of Anatomopathology, Edouard Herriot University Hospital, Lyon, France.
authors.forename: Maud
authors.initials: M
authors.lastname: Rabeyrin
authors.affiliation: Department of Digestive and Colorectal Surgery, Edouard Herriot University Hospital, Lyon, France; University Claude Bernard Lyon I, 8 Avenue Rockefeller, Lyon, France.
authors.forename: Xavier
authors.initials: X
authors.lastname: Barth
keywords: Bronchogenic cyst; Retrorectal tumour; Surgical management