Journal List > J Korean Soc Radiol > v.65(1) > 1087059

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Lee, Lee, Yi, and Kim: Gastrointestinal Stromal Tumor of the Appendix Mimicking a Mucinous Cystadenocarcinoma: A Case Report
Abdominal Radiology
Case Report

Journal of the Korean Society of Radiology 2011; 65(1): 81-83.

Published online: 31 July 2011

DOI: https://doi.org/10.3348/jksr.2011.65.1.81

Gastrointestinal Stromal Tumor of the Appendix Mimicking a Mucinous Cystadenocarcinoma: A Case Report

Min Hee Lee, MD1, Hae Kyung Lee, MD1, Boem Ha Yi, MD1, Hee Kyung Kim, MD2

1Department of Radiology, Bucheon Hospital, Soonchunhyang University College of Medicine, Bucheon, Korea.

2Department of Pathology, Bucheon Hospital, Soonchunhyang University College of Medicine, Bucheon, Korea.

Corresponding author: Hae Kyung Lee, MD. Department of Radiology, Bucheon Hospital, Soonchunhyang University College of Medicine, 1174 Jung-dong, Wonmi-gu, Bucheon 420-767, Korea. Tel. 82-32-621-5851, Fax. 82-32-621-5874, hklee@schmc.ac.kr

Received 6 April 2011       Accepted 20 June 2011

Copyright © 2011 The Korean Society of Radiology

Abstract

A gastrointestinal stromal tumor of the appendix is a rare entity. Only a few cases have been reported in this location to date. We present here a case of a pathologically confirmed gastrointestinal stromal tumor of the appendix mimicking a mucinous cystadenocarcinoma in a 67-year-old man.

Keywords: Gastrointestinal Stromal Tumor, Appendix, CT, Mucinous Cystadenocarcinoma

Figures and Tables

Fig. 1

A. Pre-contrast axial CT image shows a cystic mass with internal soft-tissue component in the right lower quadrant abdominal cavity, which appeared to abut to the cecum in the other CT images. Note the wall calcification (arrows).

B, C. Post-contrast axial (B) and coronal (C) CT images show the same cystic mass with irregular, enhancing wall thickening. The internal soft-tissue component (arrowhead) enhances heterogeneously. Note the tubular structure (arrow) abutting the mass, which was connected with the mass in other CT images, representing that the mass arises from the appendix.
jksr-65-81-g001
Fig. 2

The cut surface of the surgical specimen shows a tan-white mass with extensive areas of hemorrhage and cystic degeneration (arrows).

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Fig. 3

Photomicrograph of histopathologic specimen shows that the tumor cells are strongly reactive for C-Kit in immunohistochemical stain (× 200).

jksr-65-81-g003

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