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Vol. 6, No. 3, 2012
Issue release date: September – December
Section title: Published: November 2012

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Case Rep Gastroenterol 2012;6:726–733

Incidentally Discovered Adenocarcinoma in situ of the Appendix in a Young Woman

Koizumi N. · Murayama Y. · Kuriu Y. · Nakanishi M. · Okamoto K. · Kokuba Y. · Otsuji E.
Division of Digestive Surgery, Department of Surgery, Kyoto Prefectural University of Medicine, Kyoto, Japan

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Primary appendiceal adenocarcinoma is an infrequent disease. This report presents a rare case of incidentally discovered carcinoma in situ of the appendix. A 35-year-old parturient female simultaneously underwent appendectomy and oophorectomy due to an ovarian abscess that adhered to the appendix during cesarean section. Although her excised appendix showed no apparent tumorous lesion, histopathological examination revealed carcinoma in situ in the excised appendix. She underwent additional right hemicolectomy a few days later due to the possibility of a positive surgical margin. Histopathological examination detected no malignant cells in the resected specimen. She was discharged without any complications and has since remained healthy. Appendiceal adenocarcinoma is generally considered to be difficult to diagnose during the early stage because it seldom shows any specific findings. This results in a poor prognosis. Histopathological examination is not always conducted for appendices resected during other surgery. However, the current study suggests that a careful routine histopathological examination of excised appendix, as well as careful preoperative examination and detailed intraperitoneal inspection during surgery, is indeed important to detect occult appendiceal tumors.

© 2012 S. Karger AG, Basel


Author Contacts

Noriaki Koizumi
Division of Digestive Surgery, Department of Surgery
Kyoto Prefectural University of Medicine
465 Kajii-cho, Kawaramachi-Hirokoji, Kamigyo-ku, Kyoto 602-8566 (Japan)


Article Information

Published online: November 22, 2012
Number of Print Pages : 8
Number of Figures : 3,


Publication Details

Case Reports in Gastroenterology

Vol. 6, No. 3, Year 2012 (Cover Date: September - December)

Journal Editor: Urrutia R. (Rochester, Minn.), Lomberk G. (Rochester, Minn.)
ISSN: 1662-0631 (Print), eISSN: 1662-0631 (Online)

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Article / Publication Details

First-Page Preview
Abstract of Published: November 2012

Published online: 11/22/2012
Issue release date: September – December

Number of Print Pages: 8
Number of Figures: 3
Number of Tables: 0

ISSN: (Print)
eISSN: 1662-0631 (Online)

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Open Access License / Drug Dosage

Open Access License: This is an Open Access article licensed under the terms of the Creative Commons Attribution-NonCommercial 3.0 Unported license (CC BY-NC) (, applicable to the online version of the article only. Distribution permitted for non-commercial purposes only.
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