Figure 3a. Parathyroid adenoma in the tracheoesophageal groove. Twenty-minute (a) and 2-hour (b) scintigrams show a focus of activity in the middle of the mediastinum (arrow). The focus appeared to be posterior on the SPECT reprojection image.
Figure 3a. Parathyroid adenoma in the tracheoesophageal groove. Twenty-minute (a) and 2-hour (b) scintigrams show a focus of activity in the middle of the mediastinum (arrow). The focus appeared to be posterior on the SPECT reprojection image.