We retrospectively reviewed 162 consecutive patients who underwent preoperative [18F]FDG PET/CT as a routine exam and surgical thymectomy for a thymic mass at Asan Medical Center, between January 2014 and December 2021. PET/CT scan from different vendor (30 patients), and cases of high-risk thymoma (33 patients) and thymic carcinoma (29 patients), were excluded. Finally, a total of 70 patients who fulfilled the above criteria were included in the current study (Fig. ). The study design was approved by the Institutional Review Board of Asan Medical Center (no. 2022 − 1189). Informed consent was waived due to the retrospective nature of the study.
Patient inclusion flow chart
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