title: Neuroendocrine tumour arising inside a tailgut cyst.
abstract: Tailgut cysts are rare benign retrorectal cysts arising from persistent remnants of an embryonic hindgut. Malignant transformation inside this lesion is very uncommon and occurrence of neuroendocrine tumours in this context is extremely rare. We report the case of a 56-year-old woman who underwent surgical excision of a presacral tailgut cyst, which was found incidentally to include a neuroendocrine tumour.
authors.affiliation: Hospital Universitario de la Princesa , Madrid , Spain.
authors.forename: I
authors.initials: I
authors.lastname: Mora-Guzmán
authors.affiliation: Hospital Universitario de la Princesa , Madrid , Spain.
authors.forename: A
authors.initials: A
authors.lastname: Alonso-Casado
authors.affiliation: Hospital Universitario de la Princesa , Madrid , Spain.
authors.forename: A
authors.initials: A
authors.lastname: Rodríguez Sánchez
authors.affiliation: Hospital Universitario de la Princesa , Madrid , Spain.
authors.forename: E
authors.initials: E
authors.lastname: Bermejo Marcos
mesh_terms: D003560:Cysts / Q000150:complications / Q000000981:diagnostic imaging / Q000601:surgery; D005260:Female; D006222:Hamartoma / Q000150:complications / Q000000981:diagnostic imaging / Q000601:surgery; D006801:Humans; D008875:Middle Aged; D018358:Neuroendocrine Tumors / Q000150:complications / Q000000981:diagnostic imaging / Q000601:surgery; D012003:Rectal Fistula / Q000209:etiology; D012007:Rectum / Q000000981:diagnostic imaging / Q000601:surgery; D012447:Sacrum / Q000000981:diagnostic imaging / Q000601:surgery
keywords: Neuroendocrine tumour; Posterior approach; Presacral tumour; Retrorectal cystic hamartoma; Tailgut cyst