Katsuya Kato1, Kenichi Gemba2, Nobukazu Fujimoto3, Keisuke Aoe4, Yukio Takeshima5, Kouki Inai5, Takumi Kishimoto6. 1. Department of Radiology, Okayama University Hospital, Shikatacho, Okayama, Japan. 2. Department of Respiratory Medicine, Okayama Rosai Hospital, Chikkomidorimachi, Okayama, Japan. 3. Department of Respiratory Medicine, Okayama Rosai Hospital, Chikkomidorimachi, Okayama, Japan nobufujimot@gmail.com. 4. Department of Medical Oncology, National Hospital Organization Yamaguchi-Ube Medical Center, Higashikiwa, Ube, Japan. 5. Department of Pathology, Graduate School of Biomedical Sciences, Hiroshima University, Minamiku, Hiroshima, Japan. 6. Department of Internal Medicine, Okayama Rosai Hospital, Chikkomidorimachi, Okayama, Japan.
Abstract
AIM: The objective of this study was to determine the computed tomographic (CT) features of malignant peritoneal mesothelioma (MPM). PATIENTS AND METHODS: We analyzed CT features of MPM cases and compared them to those of other malignant conditions (non-MPM). RESULTS: Multiple nodular lesions occurred more frequently in the MPM group compared to non-MPM cases (p=0.013). Thickening of the mesentery was detected more frequently in MPM cases than in non-MPM cases (56% vs. 18%, p=0.029). Pleural plaques were detected in 13 cases (45%) in the MPM group but were not detected in the non-MPM group. The MPM-CT index score, determined in each case as the sum of the findings which are potentially characteristic of MPM, was significantly higher in MPM than in non-MPM cases (p=0.001). CONCLUSION: MPM presented characteristic CT findings, and the MPM-CT index may be useful for differential diagnosis of MPM. Copyright
AIM: The objective of this study was to determine the computed tomographic (CT) features of malignant peritoneal mesothelioma (MPM). PATIENTS AND METHODS: We analyzed CT features of MPM cases and compared them to those of other malignant conditions (non-MPM). RESULTS:Multiple nodular lesions occurred more frequently in the MPM group compared to non-MPM cases (p=0.013). Thickening of the mesentery was detected more frequently in MPM cases than in non-MPM cases (56% vs. 18%, p=0.029). Pleural plaques were detected in 13 cases (45%) in the MPM group but were not detected in the non-MPM group. The MPM-CT index score, determined in each case as the sum of the findings which are potentially characteristic of MPM, was significantly higher in MPM than in non-MPM cases (p=0.001). CONCLUSION:MPM presented characteristic CT findings, and the MPM-CT index may be useful for differential diagnosis of MPM. Copyright