Ectopic pancreatic adenocarcinoma in Meckel’s diverticulum: a case report

Abstract Background Malignant neoplasms arising from Meckel’s diverticulum are rare and an adenocarcinoma in Meckel’s diverticulum originating from ectopic pancreatic tissue is even rarer. Herein, we report a patient with an ectopic pancreatic adenocarcinoma in Meckel’s diverticulum who was successf...

Full description

Bibliographic Details
Main Authors: Shoichi Inokuchi, Kohjiro Shirabe, Satoshi Tsutsumi, Hiroomi Takayama, Takahiro Terashi, Kazuhiro Yasuda, Masahiko Ikebe, Toshio Bandoh, Junpei Wada, Shogo Urabe, Tohru Utsunomiya
Format: Article
Language:English
Published: SpringerOpen 2024-02-01
Series:Surgical Case Reports
Subjects:
Online Access:https://doi.org/10.1186/s40792-024-01843-8
_version_ 1827326377517383680
author Shoichi Inokuchi
Kohjiro Shirabe
Satoshi Tsutsumi
Hiroomi Takayama
Takahiro Terashi
Kazuhiro Yasuda
Masahiko Ikebe
Toshio Bandoh
Junpei Wada
Shogo Urabe
Tohru Utsunomiya
author_facet Shoichi Inokuchi
Kohjiro Shirabe
Satoshi Tsutsumi
Hiroomi Takayama
Takahiro Terashi
Kazuhiro Yasuda
Masahiko Ikebe
Toshio Bandoh
Junpei Wada
Shogo Urabe
Tohru Utsunomiya
author_sort Shoichi Inokuchi
collection DOAJ
description Abstract Background Malignant neoplasms arising from Meckel’s diverticulum are rare and an adenocarcinoma in Meckel’s diverticulum originating from ectopic pancreatic tissue is even rarer. Herein, we report a patient with an ectopic pancreatic adenocarcinoma in Meckel’s diverticulum who was successfully treated with surgery and chemotherapy. Case presentation A woman in her sixties presented to another hospital with abdominal pain. Plain computed tomography suggested an abdominal tumor and she was referred to our hospital. Enhanced computed tomography revealed a 23-mm low-density tumor in the abdominal cavity. Surgery was performed with a tentative diagnosis of a mesenteric tumor, such as a gastrointestinal stromal tumor, schwannoma, or lymphoma. First, we inspected the peritoneal cavity with a laparoscope. This revealed numerous nodules in the small bowel mesentery, suggesting peritoneal dissemination. A 20-mm-diameter white tumor was found in the small intestine and diagnosed as a small intestinal cancer. The small intestine was partially resected laparoscopically through a small skin incision. The patient’s postoperative course was uneventful, and she was discharged on postoperative day 9. Pathological examination revealed well-differentiated adenocarcinoma in the small intestine. The tumor had developed from a sac-like portion protruding toward the serosal side and had a glandular structure lined with flattened atypical cells. Neither pancreatic acinar cells nor islets of Langerhans were evident, suggesting a Heinrich type 3 ectopic pancreas. The final diagnosis was an adenocarcinoma originating from an ectopic pancreas in Meckel’s diverticulum. After a smooth recovery, the patient commenced chemotherapy for pancreatic cancer. Conclusions We present a very rare case of ectopic pancreatic carcinoma in Meckel’s diverticulum.
first_indexed 2024-03-07T14:43:35Z
format Article
id doaj.art-57cbd095aeaa418ca8043d0a822afaae
institution Directory Open Access Journal
issn 2198-7793
language English
last_indexed 2024-03-07T14:43:35Z
publishDate 2024-02-01
publisher SpringerOpen
record_format Article
series Surgical Case Reports
spelling doaj.art-57cbd095aeaa418ca8043d0a822afaae2024-03-05T20:05:45ZengSpringerOpenSurgical Case Reports2198-77932024-02-011011510.1186/s40792-024-01843-8Ectopic pancreatic adenocarcinoma in Meckel’s diverticulum: a case reportShoichi Inokuchi0Kohjiro Shirabe1Satoshi Tsutsumi2Hiroomi Takayama3Takahiro Terashi4Kazuhiro Yasuda5Masahiko Ikebe6Toshio Bandoh7Junpei Wada8Shogo Urabe9Tohru Utsunomiya10Department of Surgery, Oita Prefectural HospitalDepartment of Surgery, Oita Prefectural HospitalDepartment of Surgery, Oita Prefectural HospitalDepartment of Surgery, Oita Prefectural HospitalDepartment of Surgery, Oita Prefectural HospitalDepartment of Surgery, Oita Prefectural HospitalDepartment of Surgery, Oita Prefectural HospitalDepartment of Surgery, Oita Prefectural HospitalDepartment of Pathology, Oita Prefectural HospitalDepartment of Pathology, Oita Prefectural HospitalDepartment of Surgery, Oita Prefectural HospitalAbstract Background Malignant neoplasms arising from Meckel’s diverticulum are rare and an adenocarcinoma in Meckel’s diverticulum originating from ectopic pancreatic tissue is even rarer. Herein, we report a patient with an ectopic pancreatic adenocarcinoma in Meckel’s diverticulum who was successfully treated with surgery and chemotherapy. Case presentation A woman in her sixties presented to another hospital with abdominal pain. Plain computed tomography suggested an abdominal tumor and she was referred to our hospital. Enhanced computed tomography revealed a 23-mm low-density tumor in the abdominal cavity. Surgery was performed with a tentative diagnosis of a mesenteric tumor, such as a gastrointestinal stromal tumor, schwannoma, or lymphoma. First, we inspected the peritoneal cavity with a laparoscope. This revealed numerous nodules in the small bowel mesentery, suggesting peritoneal dissemination. A 20-mm-diameter white tumor was found in the small intestine and diagnosed as a small intestinal cancer. The small intestine was partially resected laparoscopically through a small skin incision. The patient’s postoperative course was uneventful, and she was discharged on postoperative day 9. Pathological examination revealed well-differentiated adenocarcinoma in the small intestine. The tumor had developed from a sac-like portion protruding toward the serosal side and had a glandular structure lined with flattened atypical cells. Neither pancreatic acinar cells nor islets of Langerhans were evident, suggesting a Heinrich type 3 ectopic pancreas. The final diagnosis was an adenocarcinoma originating from an ectopic pancreas in Meckel’s diverticulum. After a smooth recovery, the patient commenced chemotherapy for pancreatic cancer. Conclusions We present a very rare case of ectopic pancreatic carcinoma in Meckel’s diverticulum.https://doi.org/10.1186/s40792-024-01843-8ChemotherapyEctopic pancreatic adenocarcinomaMeckel’s diverticulumRare cancerSurgery
spellingShingle Shoichi Inokuchi
Kohjiro Shirabe
Satoshi Tsutsumi
Hiroomi Takayama
Takahiro Terashi
Kazuhiro Yasuda
Masahiko Ikebe
Toshio Bandoh
Junpei Wada
Shogo Urabe
Tohru Utsunomiya
Ectopic pancreatic adenocarcinoma in Meckel’s diverticulum: a case report
Surgical Case Reports
Chemotherapy
Ectopic pancreatic adenocarcinoma
Meckel’s diverticulum
Rare cancer
Surgery
title Ectopic pancreatic adenocarcinoma in Meckel’s diverticulum: a case report
title_full Ectopic pancreatic adenocarcinoma in Meckel’s diverticulum: a case report
title_fullStr Ectopic pancreatic adenocarcinoma in Meckel’s diverticulum: a case report
title_full_unstemmed Ectopic pancreatic adenocarcinoma in Meckel’s diverticulum: a case report
title_short Ectopic pancreatic adenocarcinoma in Meckel’s diverticulum: a case report
title_sort ectopic pancreatic adenocarcinoma in meckel s diverticulum a case report
topic Chemotherapy
Ectopic pancreatic adenocarcinoma
Meckel’s diverticulum
Rare cancer
Surgery
url https://doi.org/10.1186/s40792-024-01843-8
work_keys_str_mv AT shoichiinokuchi ectopicpancreaticadenocarcinomainmeckelsdiverticulumacasereport
AT kohjiroshirabe ectopicpancreaticadenocarcinomainmeckelsdiverticulumacasereport
AT satoshitsutsumi ectopicpancreaticadenocarcinomainmeckelsdiverticulumacasereport
AT hiroomitakayama ectopicpancreaticadenocarcinomainmeckelsdiverticulumacasereport
AT takahiroterashi ectopicpancreaticadenocarcinomainmeckelsdiverticulumacasereport
AT kazuhiroyasuda ectopicpancreaticadenocarcinomainmeckelsdiverticulumacasereport
AT masahikoikebe ectopicpancreaticadenocarcinomainmeckelsdiverticulumacasereport
AT toshiobandoh ectopicpancreaticadenocarcinomainmeckelsdiverticulumacasereport
AT junpeiwada ectopicpancreaticadenocarcinomainmeckelsdiverticulumacasereport
AT shogourabe ectopicpancreaticadenocarcinomainmeckelsdiverticulumacasereport
AT tohruutsunomiya ectopicpancreaticadenocarcinomainmeckelsdiverticulumacasereport