Nuclear Medicine and Molecular Imaging  2009;43(5):499-504

Two Cases of Peritoneal Tuberculosis Mimicking Peritoneal Carcinomatosis on F-18 FDG PET/CT.

Soon Uk CHOI 1 ; Eun Sil KIM ; Soyon KIM ; Chang Min YU ; Se Han LEE ; Hee Jae HYUN ; Hyo Jin LEE ; Seung Yup KIM

Affiliations

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Keywords

Peritoneal tuberculosis; F-18 FDG PET/CT; peritoneal carcinomatosis

Country

Republic of Korea

Language

Korean

Abstract

F-18 fluorodeoxyglucose positron emission tomography (F-18 FDG PET/CT) plays an important role in diagnosis of malignant tumors and adds to conventional imaging in the staging of pertoneal carcinomatosis. However, false positive cases resulting from benign disease such as tuberculosis may occur. We report two cases of peritoneal tuberculosis on F-18 FDG PET/CT which showed multiple hypermetabolic foci in the mesentery and peritoneum with increased serum cancer antigen 125 (CA 125). Subsequent F-18 FDG PET/CT showed a disappearance of pathologic uptake following treatment with anti-tuberculosis drugs.