title: Actinomycosis of the appendix mimicking appendiceal tumor: a case report.
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.
authors.affiliation: Department of Radiology, Dong-A University Hospital, Dongdaesindong 3ga, Seo-gu, Pusan 602-715, South Korea.
authors.forename: Sang-Yun
authors.initials: SY
authors.lastname: Lee
authors.forename: Hee-Jin
authors.initials: HJ
authors.lastname: Kwon
authors.forename: Jin-Han
authors.initials: JH
authors.lastname: Cho
authors.forename: Jong-Young
authors.initials: JY
authors.lastname: Oh
authors.forename: Kyung-Jin
authors.initials: KJ
authors.lastname: Nam
authors.forename: Jin-Hwa
authors.initials: JH
authors.lastname: Lee
authors.forename: Seong-Kuk
authors.initials: SK
authors.lastname: Yoon
authors.forename: Myong-Jin
authors.initials: MJ
authors.lastname: Kang
authors.forename: Jin-Sook
authors.initials: JS
authors.lastname: Jeong
mesh_terms: D000190:Actinomyces / Q000302:isolation & purification; D000196:Actinomycosis / Q000175:diagnosis*; D001063:Appendiceal Neoplasms / Q000175:diagnosis*; D001064:Appendicitis / Q000175:diagnosis* / Q000382:microbiology*; D001065:Appendix / Q000000981:diagnostic imaging / Q000382:microbiology; D003937:Diagnosis, Differential; D005260:Female; D006801:Humans; D008875:Middle Aged; D014057:Tomography, X-Ray Computed; D014463:Ultrasonography