Clinical conditions related to positive thymic uptake on I‐131 post‐therapeutic scans in thyroid cancer patients
Authors' conclusion
Thymic uptake tended to be more prominent in young patients with a history of repeated RAI therapy. Structural recurrence during follow-up was much more common in the positive thymic uptake group, while the incidence of biochemical recurrence during follow-up was higher in the negative thymic uptake group.
Study context
- Population
- Thyroid cancer patients after a therapeutic dose of I-131 (3.7–9.25 GBq), scans January 2010–December 2010
- Participants
- 685 patients
- Exposure
- Positive vs negative thymic uptake on I-131 post-therapeutic scans
- Outcome
- Clinical conditions associated with thymic uptake on I-131 post-therapeutic scans
Main finding
As reported in the abstract
Thymic uptake on I-131 post-therapeutic scans
- Scans with thymic uptake
- 107 (15.6%)
- Mean age significantly lower in positive vs negative thymic uptake group
- p < .001
- Significant indicators: thyroid hormone withdrawal and history of repeated radioactive iodine (RAI) therapy
- p < .05
- Logistic regression: young age and history of repeated RAI therapy correlated with thymic uptake
- p < .001
Observational data: associations, not effects.
Further findings
Structural persistence · end of follow-up
Biochemical disease · end of follow-up
Status at end of follow-up (all patients)
- Disease-free
- 487 (86.5%)
- Biochemical disease
- 44 (7.8%)
- Structural persistence
- 32 (5.7%)
Biochemical disease · end of follow-up
- Final follow-up results of the two groups were statistically different
Original publication
Clinical conditions related to positive thymic uptake on I‐131 post‐therapeutic scans in thyroid cancer patients. Clin Endocrinol (Oxf). Published 27 October 2022. doi:10.
Composed by AI from the published abstract and checked against it. How Briefs are made →