Clin Mol Hepatol.  2015 Mar;21(1):80-84. 10.3350/cmh.2015.21.1.80.

A case of primary hepatic actinomycosis: an enigmatic inflammatory lesion of the liver

Affiliations
  • 1Department of Internal Medicine, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea. hch@amc.seoul.kr
  • 2Department of Pathology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea.
  • 3Division of Hepatobiliary Surgery and Liver Transplantation, Department of Surgery, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea.

Abstract

Primary hepatic actinomycosis is one of the chronic abscess-forming infections of the liver. Accurate diagnosis is frequently delayed due to its indolent course and nonspecific clinical and radiological manifestations. We report a case of a 57-year-old man presenting with asymptomatic multiple hepatic masses on follow-up abdominal computed tomography performed 1 year after stomach cancer surgery. Although a percutaneous liver biopsy procedure was conducted twice in order to obtain confirmative pathology, only a nonspecific organizing abscess with plasma cell infiltration was revealed, without identification of any organism in the tissue cultures. Ultimately, actinomycosis was diagnosed following the detection of sulfur granules on open surgical biopsied tissue. This case suggests that primary hepatic actinomycosis should be considered as one of the possible causes for enigmatic inflammatory lesions of the liver.

Keyword

Actinomycosis; Multiple liver abscess; Differential diagnosis

MeSH Terms

Actinomycosis/*diagnosis/drug therapy/microbiology
Anti-Bacterial Agents/therapeutic use
Biopsy, Needle
Humans
Liver Abscess/complications
Liver Diseases/*diagnosis/microbiology/pathology
Male
Middle Aged
Tomography, X-Ray Computed
Anti-Bacterial Agents
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