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Related Experiment Video

Updated: Dec 28, 2025

Intraoperative Gastroscopy for Tumor Localization in Laparoscopic Surgery for Gastric Adenocarcinoma
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Intraoperative Gastroscopy for Tumor Localization in Laparoscopic Surgery for Gastric Adenocarcinoma

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Tailgut cyst adenocarcinoma.

Pedro Martins1, Rita Canotilho1, Mariana Peyroteo1

  • 1Instituto Português de Oncologia do Porto Francisco Gentil, Entidade Pública Empresarial, Surgical Oncology Service. Porto, Portugal.

Autopsy & Case Reports
|February 11, 2020
PubMed
Summary

Tailgut cysts (TGCs) are rare congenital lesions. This case highlights adenocarcinoma arising in a TGC, emphasizing surgical excision for malignant potential.

Keywords:
AdenocarcinomaCongenital AbnormalitiesCystsPelvic Neoplasms

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Last Updated: Dec 28, 2025

Intraoperative Gastroscopy for Tumor Localization in Laparoscopic Surgery for Gastric Adenocarcinoma
10:31

Intraoperative Gastroscopy for Tumor Localization in Laparoscopic Surgery for Gastric Adenocarcinoma

Published on: August 9, 2016

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Area of Science:

  • Gastroenterology
  • Surgical Oncology
  • Embryology

Background:

  • Tailgut cysts (TGCs) are rare congenital anomalies originating from the embryological postanal primitive gut.
  • Malignancy within TGCs is infrequent, with adenocarcinoma and carcinoid tumors being the most common types.
  • Literature review identified only 27 previously reported cases of adenocarcinoma developing in TGCs.

Observation:

  • A 54-year-old female presented with several weeks of pelvic and perineal pain.
  • Initial work-up revealed a presacral mass, diagnosed as adenocarcinoma arising in a TGC.
  • The patient underwent radical resection of the tumor, including the middle rectum, coccyx, and sacrum (S4-S5).

Findings:

  • Histopathologic examination confirmed adenocarcinoma arising in a TGC.
  • The patient received adjuvant chemoradiotherapy post-surgery.
  • Diagnosis of TGCs can be challenging due to their rarity and varied presentations mimicking other proctologic disorders.

Implications:

  • This case underscores the diagnostic difficulties associated with rare congenital lesions like TGCs.
  • Multidisciplinary management at experienced tertiary centers is crucial for optimal treatment outcomes.
  • Surgical excision is the recommended treatment due to the malignant potential and risk of local complications associated with TGCs.