Patients and lesions
The patient and lesion characteristics are summarized in Table 3 . The SS-EPI group was two males and six females (mean age 64 years, range 48–76 years), and the RS-EPI group was six males and 10 females (mean age 55.6 years, range 25–80 years). All lesions were pathologically diagnosed as parathyroid adenomas, and there were no significant differences in patient or lesion characteristics between the two groups.