Primary Appendiceal Adenocarcinoma Presenting with Hematochezia due to the Invading Tumor in the Sigmoid Colon

Primary appendiceal tumors are rare malignancies; some cases have been described to invade other organs, and this represents a very rare clinical condition. We report a case of appendiceal adenocarcinoma invading the sigmoid colon and a review of similar cases. A 69-year-old woman with complaints of...

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Main Authors: Tatsuya Suzuki, Yasuhiro Yamamoto, Toshihiko Torigoe, Shoichiro Mizukami, Kengo Shigehara
Format: Article
Language:English
Published: Wiley 2020-01-01
Series:Case Reports in Surgery
Online Access:http://dx.doi.org/10.1155/2020/8833573
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author Tatsuya Suzuki
Yasuhiro Yamamoto
Toshihiko Torigoe
Shoichiro Mizukami
Kengo Shigehara
author_facet Tatsuya Suzuki
Yasuhiro Yamamoto
Toshihiko Torigoe
Shoichiro Mizukami
Kengo Shigehara
author_sort Tatsuya Suzuki
collection DOAJ
description Primary appendiceal tumors are rare malignancies; some cases have been described to invade other organs, and this represents a very rare clinical condition. We report a case of appendiceal adenocarcinoma invading the sigmoid colon and a review of similar cases. A 69-year-old woman with complaints of hematochezia was admitted to the hospital. Colonoscopy revealed a tumor in the sigmoid colon, which was a well-differentiated tubular adenocarcinoma. A computed tomography scan showed an appendiceal mass that involved the sigmoid colon, suggesting an appendiceal cancer invading the sigmoid colon. Ileocecal resection with extended lymphadenectomy and en bloc resection of the sigmoid colon was performed. The appendiceal tumor involved the sigmoid colon and the terminal ileum. The ileocecal part which included the tumor and the involved sigmoid colon was resected in total. Macroscopic findings showed that the appendiceal tumor made a fistula with the sigmoid colon. Pathological examination revealed that the tumor was a well-differentiated tubular adenocarcinoma that invaded the sigmoid colon. The final pathological stage was T4bN0M0, stage IIC. The patient was discharged from the hospital uneventfully. She was alive without relapse after a 20-month follow-up. Although an appendiceal tumor invading the rectosigmoid region is rare, a preoperative diagnosis can be obtained that facilitates the planning of a suitable surgical procedure: en bloc resection of the ileocecal part and the rectosigmoid part.
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spelling doaj-art-f1a4cc1a5e1747fd9ab2a5e1bc34c5e82025-02-03T00:58:48ZengWileyCase Reports in Surgery2090-69002090-69192020-01-01202010.1155/2020/88335738833573Primary Appendiceal Adenocarcinoma Presenting with Hematochezia due to the Invading Tumor in the Sigmoid ColonTatsuya Suzuki0Yasuhiro Yamamoto1Toshihiko Torigoe2Shoichiro Mizukami3Kengo Shigehara4Department of Surgery, Kobayashi Hospital, 4-2, Kita-3-Jonishi, Kitami, Hokkaido 090-8567, JapanDepartment of Surgery, Kobayashi Hospital, 4-2, Kita-3-Jonishi, Kitami, Hokkaido 090-8567, JapanDepartment of Pathology, Sapporo Medical University School of Medicine, South-1, West-17, Chuo-ku, Sapporo, Hokkaido 060-8556, JapanDepartment of Surgery, Kobayashi Hospital, 4-2, Kita-3-Jonishi, Kitami, Hokkaido 090-8567, JapanDepartment of Surgery, Kobayashi Hospital, 4-2, Kita-3-Jonishi, Kitami, Hokkaido 090-8567, JapanPrimary appendiceal tumors are rare malignancies; some cases have been described to invade other organs, and this represents a very rare clinical condition. We report a case of appendiceal adenocarcinoma invading the sigmoid colon and a review of similar cases. A 69-year-old woman with complaints of hematochezia was admitted to the hospital. Colonoscopy revealed a tumor in the sigmoid colon, which was a well-differentiated tubular adenocarcinoma. A computed tomography scan showed an appendiceal mass that involved the sigmoid colon, suggesting an appendiceal cancer invading the sigmoid colon. Ileocecal resection with extended lymphadenectomy and en bloc resection of the sigmoid colon was performed. The appendiceal tumor involved the sigmoid colon and the terminal ileum. The ileocecal part which included the tumor and the involved sigmoid colon was resected in total. Macroscopic findings showed that the appendiceal tumor made a fistula with the sigmoid colon. Pathological examination revealed that the tumor was a well-differentiated tubular adenocarcinoma that invaded the sigmoid colon. The final pathological stage was T4bN0M0, stage IIC. The patient was discharged from the hospital uneventfully. She was alive without relapse after a 20-month follow-up. Although an appendiceal tumor invading the rectosigmoid region is rare, a preoperative diagnosis can be obtained that facilitates the planning of a suitable surgical procedure: en bloc resection of the ileocecal part and the rectosigmoid part.http://dx.doi.org/10.1155/2020/8833573
spellingShingle Tatsuya Suzuki
Yasuhiro Yamamoto
Toshihiko Torigoe
Shoichiro Mizukami
Kengo Shigehara
Primary Appendiceal Adenocarcinoma Presenting with Hematochezia due to the Invading Tumor in the Sigmoid Colon
Case Reports in Surgery
title Primary Appendiceal Adenocarcinoma Presenting with Hematochezia due to the Invading Tumor in the Sigmoid Colon
title_full Primary Appendiceal Adenocarcinoma Presenting with Hematochezia due to the Invading Tumor in the Sigmoid Colon
title_fullStr Primary Appendiceal Adenocarcinoma Presenting with Hematochezia due to the Invading Tumor in the Sigmoid Colon
title_full_unstemmed Primary Appendiceal Adenocarcinoma Presenting with Hematochezia due to the Invading Tumor in the Sigmoid Colon
title_short Primary Appendiceal Adenocarcinoma Presenting with Hematochezia due to the Invading Tumor in the Sigmoid Colon
title_sort primary appendiceal adenocarcinoma presenting with hematochezia due to the invading tumor in the sigmoid colon
url http://dx.doi.org/10.1155/2020/8833573
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