A Case of Mucinous Cystic Neoplasm of the Liver with Infection

Abstract

A 75-year-old woman was admitted to our hospital with right hypochondralgia and fever. The abdomen was flat and soft and there was tenderness in the right hypochondriac region. The laboratory tests revealed an elevation of CRP. Abdominal contrast-enhanced computed tomography revealed a 10-cm multilocular cyst in the medial segment of the liver. The drainage and antibacterial treatment to this cystic lesion suggestive of an infected hepatic cyst were ineffective. Therefore, we performed left hepatic lobectomy including the lesion. The resected specimen contained a 65×70×70 mm mucinous multilocular cystic tumor. Histopathological examination revealed that the tumor contained ovarian-like stroma, and there were no malignant components. We thus diagnosed the tumor as mucinous cystic neoplasm (MCN) of the liver. We report a case of MCN of the liver mimicking a liver abscess, together with a review of the literature.