Hepatic Actinomycosis Mimicking Malignancy After Pancreaticoduodenectomy: A Case Report.

Abdominal actinomycosis is a rare disease caused by a Gram-positive bacillus (Actinomyces). Liver manifestation is rare and, in patients with a history of cancer, differential diagnosis with secondary malignant disease can be difficult. Microbiological result is necessary for a correct diagnosis, though not always possible in preoperative workout. The authors present a case of hepatic actinomycosis that mimicked oncological disease and led to a more aggressive surgical approach.