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Isolated hepatic actinomycosis: a case report.

Thomas Lall¹, Thomas M Shehab, Paul Valenstein

¹Department of Internal Medicine, Saint Joseph Mercy Hospital, 5301 McAuley Drive, Ypsilanti, Michigan, MI 48197, USA. shehabt@trinity-health.org.

Journal of Medical Case Reports

|February 26, 2010

Summary

Isolated hepatic actinomycosis is a rare cause of liver masses. Early recognition of this actinomyces infection is crucial for proper diagnosis and management.

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Area of Science:

Medical Microbiology
Hepatology
Infectious Diseases

Background:

Actinomyces are gram-positive bacilli typically causing oral and cervicofacial infections.
Isolated hepatic actinomycosis is a rare manifestation, accounting for only 5% of actinomycosis cases.
These bacteria thrive in anaerobic environments.

Purpose of the Study:

To present a case of isolated hepatic actinomycosis.
To highlight the diagnostic challenges and clinical presentation of this rare condition.

Main Methods:

Case report of a 75-year-old woman with a 3-month history of constitutional symptoms.
Diagnosis confirmed via liver biopsy during laparotomy.
Patient successfully treated and recovered.

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Main Results:

The patient presented with non-specific symptoms including night sweats, fever, weight loss, and abdominal bloating.
Isolated hepatic actinomycosis was identified as the cause of the liver mass.
The patient experienced a full recovery after treatment.

Conclusions:

Isolated hepatic actinomycosis is an uncommon but important differential diagnosis for liver masses.
Subacute presentation and vague symptoms can delay diagnosis.
Awareness among physicians is key to avoid diagnostic and management pitfalls.