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131I Whole-Body Scan Incidental Uptake Due to Spermatocele.

131I Whole-Body Scan Incidental Uptake Due to Spermatocele.
Author Information (click to view)

Albano D, Motta F, Baronchelli C, Lucchini S, Bertagna F,


Albano D, Motta F, Baronchelli C, Lucchini S, Bertagna F, (click to view)

Albano D, Motta F, Baronchelli C, Lucchini S, Bertagna F,

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Clinical nuclear medicine 42(11) 901-904 doi 10.1097/RLU.0000000000001838

Abstract

A 46-year-old man with papillary thyroid cancer post total thyroidectomy was referred for post radioiodine (I) whole-body scan. Whole-body images revealed intense I uptake in the bed thyroid and a focal abnormal uptake in the testicular area. Subsequent SPECT/CT demonstrated that the focal uptake corresponded to the left epididymis, and the pathology report revealed a spermatocele with no immunohistochemical features for thyroid tissue. Many cases of unexpected radioiodine uptake have been reported, and spermatocele could be counted for another possibility of incidental I uptake despite an unclear mechanism.

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