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Updated: Jun 17, 2026

Murine Ileocolic Bowel Resection with Primary Anastomosis
Published on: October 29, 2014
[Adenocarcinoma and intestinal duplication of the ileum. Report of one case]
Marcelo A Beltrán1, Carlos Barría, Mario A Contreras
1Servicio de Cirugía, Hospital de La Serena, Chile. beltran_01@yahoo.com
Insights
Gastrointestinal duplication in an adult female presented as a cystic tumor. This rare abnormality was found to be a mucinous adenocarcinoma with extensive peritoneal metastasis, leading to a fatal outcome.
Area of Science:
- Gastroenterology
- Surgical Oncology
- Developmental Biology
Background:
- Gastrointestinal duplications are rare congenital anomalies, typically diagnosed in childhood.
- Adult presentations are infrequent and often present with nonspecific symptoms.
Observation:
- A 36-year-old female presented with abdominal pain.
- Computed tomography revealed a cystic structure surrounded by small bowel loops and free peritoneal fluid.
- Surgical exploration identified extensive peritoneal carcinomatosis and a large mesenteric cystic tumor.
Findings:
- The mesenteric tumor exhibited features of intestinal wall architecture.
- Histopathology confirmed a moderately differentiated mucinous adenocarcinoma infiltrating the cystic wall.
- The tumor showed extensive infiltration of the peritoneum and omentum.
Implications:
- This case highlights the rare occurrence of malignant transformation within a gastrointestinal duplication in an adult.
- It underscores the importance of considering rare diagnoses in adult abdominal pathologies.
- The advanced stage at presentation suggests a poor prognosis for such malignancies.
Abstract:
Gastrointestinal duplications are uncommon developmental abnormalities that occur anywhere along the gastrointestinal tract. We report a 36 year-old female admitted to the emergency room due to abdominal pain. Computed abdominal tomography demonstrated small bowel loops surrounding a tubular cystic structure and peritoneal free fluid. The surgical exploration revealed multiple malignant implants covering the visceral and parietal peritoneum and infiltrating completely the omentum. At the ileal mesentery we found a tubular cystic whitish tumor measuring 12 cm of diameter and 15 cm on length. A complete resection of the tumor was not considered an option due to the extensive peritoneal dissemination. Thirty-four days after the operation the patient died. The histopathology of the cystic wall was compatible with the architecture of intestinal wall extensively infiltrated by a moderately differentiated mucinous adenocarcinoma; a mucosal lining in parts atrophic and in parts infiltrated or replaced by adenocarcinoma was observed. A well structured muscular layer was recognized, and the myenteric plexus was identified.
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