Abstract.
The purpose of the study was to determine how often the thymus is visualized on whole-body radioiodine scans. One hundred and seventy-five patients had 325 diagnostic scans and 200 post-treatment scans. Activity in the mediastinum possibly consistent with the thymus was seen on seven scans in six patients. Four of these were diagnostic scans (three were second follow-up scans, and the fourth, a third follow-up scan). Three post-treatment scans demonstrated mediastinal uptake. Only one patient had persistent mediastinal uptake on both a post-treatment scan and a subsequent follow-up diagnostic scan. None of these six patients were treated as a result of this finding and none has clinical or biochemical evidence of metastatic disease.
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Received 26 November and in revised form 6 December 1999
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Davidson, J., McDougall, I. How frequently is the thymus seen on whole-body iodine-131 diagnostic and post-treatment scans?. Eur J Nucl Med 27, 425–430 (2000). https://doi.org/10.1007/s002590050526
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DOI: https://doi.org/10.1007/s002590050526