A 48-year-old woman with gradually growing left lung nodule underwent FDG PET/CT scan, which demonstrated mild 18F-FDG uptake in the nodule of the left lobe, suggestive of malignancy. Unexpectedly, increased FDG uptake in bilateral gluteus medius, gluteus minimus, and piriformis was shown. She described having sexual activity in missionary position the night prior. The case emphasizes the importance of avoiding sexual activity before the FDG PET/CT study.
From the Department of Nuclear Medicine, Beijing Friendship Hospital of Capital Medical University, Beijing, China.
Received for publication June 17, 2018; revision accepted June 24, 2018.
Conflicts of interest and sources of funding: Jigang Yang was supported by the National Natural Science Foundation of China (no: 81771860), Beijing Talents Project, and Capital’s funds for Health Improvement and Research. Leilei Yuan was supported by the National Natural Science Foundation of China (no: 81601519). None declared to all other authors.
Correspondence to: Jigang Yang, MD, PhD, Beijing Friendship Hospital Affiliated of Capital Medical University, 95 Yong An Road, Xi Cheng District, Beijing 100050, Beijing, China. E-mail: firstname.lastname@example.org.