Gallbladder Granuloma with Positive Positron Emission Tomography Findings Mimicking Advanced Gallbladder Cancer

Abstract

A 62-year-old man with non-alcoholic steatohepatitis was followed-up at the department of internal medicine of our hospital. Thickening of the gallbladder wall was detected on US, CT and EUS. Positron emission tomography-CT (PET-CT) scan also and ultrasonography (US). Positron emission tomography PET-CT scan also showed positive findings in the gallbladder wall and gallbladder bed, and surgery was performed in the suspected gallbladder cancer. Intraoperative pathologic diagnosis did not reveal any malignant findings, at the thickening of the wall and stump of the gallbladder, so we resected of the gallbladder bed. Pathological findings showed many lymphocytes, neutrophil cells, plasma cells and multinucleated cells, and granuloma was diagnosed. We report this case because we feel it can contribute to the understanding of this unusual disease entity.