Table 1.
Demographics and clinical features of the patients
| Variables (n=28) | |
|---|---|
| Age (years), Median (IQR) | 55.0 (46.8-60.5) |
| Female, n (%) | 22 (78.6) |
| Comorbid disease, n (%) | 7 (25.0) |
| Previous surgery, n (%) | |
| PS | 2 (7.2) |
| TS | 1 (3.6) |
| PS, TS | 1 (3.6) |
| SUVmax on 18F-FCH PET/CT, Median (IQR) | 4.85 (3.78-6.25) |
| Localization of lesion on 18F-FCH PET/CT, n (%) | |
| Left lower | 11 (39.3) |
| Right lower | 7 (25.0) |
| Left middle | 2 (7.1) |
| Right middle | 2 (7.1) |
| Left upper | 1 (3.6) |
| Right upper | 1 (3.6) |
| Right tracheoesophageal groove | 1 (3.6) |
| Behind the sternum | 1 (3.6) |
| Preoperative serum PTH (pg/ml), Median (IQR) | 139.3 (108.3-183.0) |
| Preoperative serum Ca (mg/dl), Median (IQR) | 11.0 (10.2-11.4) |
| Preoperative serum vitamin D (ng/ml), Median (IQR) | 22.6 (19.2-28.8) |
| Preoperative BMD (Z-score), Median (IQR) | -2.1 (-2.7--1.7) |
Note: IQR: Interquartile range, PS: Parathyroid surgery, TS: Thyroid surgery, SUVmax: Maximum standardized uptake value, 18F-FCH PET/CT: 18F-fluorocholine positron emission tomography-computed tomography, PTH: Parathyroid hormone, BMD: Bone mineral density. BMD was measured at the lumbar spine (L1–L4) and femoral neck.