Case Report
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World J Gastroenterol. Jan 21, 2010; 16(3): 395-397
Published online Jan 21, 2010. doi: 10.3748/wjg.v16.i3.395
Actinomycosis of the appendix mimicking appendiceal tumor: A case report
Sang-Yun Lee, Hee-Jin Kwon, Jin-Han Cho, Jong-Young Oh, Kyung-Jin Nam, Jin-Hwa Lee, Seong-Kuk Yoon, Myong-Jin Kang, Jin-Sook Jeong
Sang-Yun Lee, Hee-Jin Kwon, Jin-Han Cho, Jong-Young Oh, Kyung-Jin Nam, Jin-Hwa Lee, Seong-Kuk Yoon, Myong-Jin Kang, Department of Radiology, Dong-A University Hospital, Dongdaesindong 3ga, Seo-gu, Pusan 602-715, South Korea
Jin-Sook Jeong, Department of Pathology, Dong-A University Hospital, Dongdaesindong 3ga, Seo-gu, Pusan 602-715, South Korea
Author contributions: Lee SY and Kwon HJ contributed equally to the work; Lee SY, Kwon HJ, Cho JH, Yoon SK and Kang MJ designed the research; Lee SY, Kwon HJ and Cho JH performed the research; Kwon HJ, Cho JH, Oh JY, Nam KJ and Lee JH contributed new reagents/analytic tools; Kwon HJ and Jeong JS analyzed the data; Lee SY and Kwon HJ wrote the paper.
Correspondence to: Hee-Jin Kwon, MD, Department of Radiology, Dong-A University Hospital, Dongdaesindong 3ga, Seo-gu, Pusan 602-715, South Korea. risual@dau.ac.kr
Telephone: +82-51-2405367 Fax: +82-51-2534931
Received: September 28, 2009
Revised: November 23, 2009
Accepted: November 30, 2009
Published online: January 21, 2010
Abstract

Actinomycosis is an uncommon chronic infectious disease. Common sites of involvement include the cervicofacial, thoracic and abdominopelvic regions. In abdominopelvic actinomycosis, the ileocecal region, including the appendix, is the most commonly involved site. In some reports, limited appendiceal actinomycosis has revealed a thickened appendiceal wall with peri-appendiceal inflammation as acute appendicitis or perforated appendicitis. We experienced pathologically confirmed intraluminal limited appendiceal actinomycosis without peri-appendiceal infiltration. Here, we report the computed tomography and ultrasound findings.

Keywords: Actinomyces, Actinomycosis, Appendiceal neoplasms, Appendicitis