The relapses of rectal cancer are most frequently localized in the pelvis, liver, and pelvic and para-aortic lymph nodes and lungs, whereas the vagina is an unusual site. We present here a 60-year-old woman presenting with lower abdominal discomfort 23 months after radical resection of rectal adenocarcinoma. An isolated, solitary, hypermetabolic mass in the right part of the vagina was detected by 18F-FDG PET/CT. Ultimately, the vaginal neoplasm was proved to be adenocarcinoma of rectal origin based on its shared histologic features and compatible immunostaining profile.
From the *Department of Nuclear Medicine, West China Hospital, Sichuan University, Sichuan; and
†Department of Nuclear Medicine, Chongqing Three Gorges Central Hospital, Chongqing, China.
Received for publication January 29, 2019; revision accepted February 16, 2019.
Conflicts of interest and sources of funding: This study was supported by the Sichuan Provincial Department of Science and Technology support program (2015SZ0128). None declared to all authors.
Rang Wang and Qiuping Fan contribute equally to this work.
Correspondence to: Minggang Su, Department of Nuclear Medicine, West China Hospital, Sichuan University, 37 Guoxue Xiang, Chengdu 610041, Sichuan, China. E-mail: email@example.com.