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Potential false-positive meckel scan due to displaced kidney caused by recurrent retroperitoneal teratoma
Tzu-Pei Su1, Nai-Ming Cheng, Hui-Chieh Chuang
1From the Departments of *Nuclear Medicine and Molecular Imaging Center; †Anatomic Pathology; and ‡Medical Imaging and Intervention, Chang Gung Memorial Hospital, Chang Gung University, College of Medicine, Taoyuan, Taiwan.
Abstract:
We report the findings of a Meckel scan in a 19-year-old patient treated for retroperitoneal teratoma with intermittent tarry stool for 1 month. Two focal stases of radioactivity in the right upper quadrant of the abdomen were noted. SPECT/CT for localization revealed that these 2 foci were within the displaced right kidney along with an adjacent bulky retroperitoneal mass. The patient subsequently underwent surgery, and histopathological studies confirmed recurrent teratoma. Two foci of increased radioactivity instead of 1 may have provided hints for the physiological characteristics of such lesions.
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