Peptide receptor radionuclide therapy (PRRT) in radioiodine-refractory thyroid cancer: A case report of significant response to lu177 DOTA-TATE treatment

SUMMARY A 59-year-old woman with follicular thyroid carcinoma underwent total thyroidectomy followed by radioiodine treatment. Following treatment, the whole-body scan did not show any abnormal radioiodine uptake. However, during the follow-up, the serum thyroglobulin (Tg) value increased without detectable thyroglobulin-antibodies. We performed a Ga-68 DOTA-TATE PET/CT showing a sternal lesion and several lung nodules with high somatostatin receptor density. Also, on the next day, FDG PET/CT was performed, which confirmed the findings. Considering the high levels of somatostatin receptor expression in such metastases, we planned lu177 DOTA-TATE therapy. After two cycles of lu177 DOTA-TATE injection, serum thyroglobulin significantly dropped, and she claimed that her sternal pain and dyspnea were much better. This was the case of a patient suffering from iodine-refractory follicular thyroid carcinoma, with somatostatin-receptor expression, treated with 177Lu-DOTA-TATE, showing a significant response.

Bibliographic Details

Main Authors:	Ataei-Nakhaei,Saeideh, Aryana,Kamran, Mostafavi,Sayyed Mostafa, Kosari,Hadis Mohammadzadeh, Esmatinia,Mohammad, Aghaee,Atena
Format:	Digital revista
Language:	English
Published:	Sociedade Brasileira de Endocrinologia e Metabologia 2022
Online Access:	http://old.scielo.br/scielo.php?script=sci_arttext&pid=S2359-39972022000200269
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