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Omental Actinomycosis With Abdominal Wall Invasion: A Case Report

Tsou, Kuei-Feng MD*; Yu, Chih-Yung MD†; Hsu, Wen-Hsiu MD‡; Juan, Yu-Hsiu MD†§; Huang, Guo-Shu MD†; Chang, Wei-Chou MD†

Infectious Diseases in Clinical Practice:
doi: 10.1097/IPC.0b013e3181c755c0
Case Reports

Actinomycosis is an uncommon suppurative inflammation. It can often be mistaken for malignant tumor and presents a diagnostic dilemma. We report a rare case of actinomycosis presenting as an inflammatory pseudotumor, involving both the abdominal wall and the greater omentum. On a computed tomographic scan, the mass had invaded the deep muscles of the anterior abdominal wall, and the omentum was adherent to the parietal peritoneum beneath the mass. In this report, we conclude that if a female patient presents with a slow-growing abdominal wall mass and a history of intrauterine device placement, actinomycotic infection should be considered.

Author Information

From the *Department of Anesthesiology, Show-Chwan Memorial Hospital, Changhua, †Department of Radiology, Tri-Service General Hospital and National Defense Medical Center, Taipei, ‡Division of Gastroenterology, Department of Internal Medicine, Armed Forces Taichung General Hospital, Taichung and §Department of Radiology, Hualien Armed Forces General Hospital, Hualien, Taiwan, Republic of China.

Correspondence to: Wei-Chou Chang, MD, Department of Radiology, Tri-Service General Hospital and National Defense Medical Center, 325 Cheng-Kung Rd, Sec 2, Taipei 114, Taiwan, Republic of China. E-mail:

The authors have no funding or conflicts of interest to disclose.

© 2010 Lippincott Williams & Wilkins, Inc.