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ABSTRACT: Background
While hypothyroidism has frequently been reported with the use of TKIs, the thyroid-stimulating hormone (TSH) suppressing effect of TKIs is rare, except for thyroiditis. We describe a case with progressive recurrent chordoma who initially became hyperthyroid in a context of autoimmunity under sorafenib treatment and later under imatinib treatment.Case presentation
A 57-year-old man with lumbar chordoma began daily treatment of 800 mg sorafenib. He did not have any other medication or recent iodinated-contrast exposure and his family history was negative for thyroid and autoimmune disease. There was no history of neck pain, irradiation or trauma, recent fever or viral illness. Pre-treatment TSH was normal. After 18 weeks of treatment, the patient presented hyperthyroidism with positive anti-TSH receptor antibodies. More surprisingly, Graves' disease recurred during treatment with imatinib.Conclusion
The fact that Graves' disease occurred after two different TKIs suggests that it could be a rare but important class effect. Anti-TSH receptor antibodies should be systematically measured when TSH decreases in order to avoid the erroneous diagnosis of transient hyperthyroidism due to thyroiditis.
SUBMITTER: Eroukhmanoff J
PROVIDER: S-EPMC4997685 | biostudies-literature | 2016 Aug
REPOSITORIES: biostudies-literature
Eroukhmanoff Juliette J Castinetti Frederic F Penel Nicolas N Salas Sebastien S
BMC cancer 20160824
<h4>Background</h4>While hypothyroidism has frequently been reported with the use of TKIs, the thyroid-stimulating hormone (TSH) suppressing effect of TKIs is rare, except for thyroiditis. We describe a case with progressive recurrent chordoma who initially became hyperthyroid in a context of autoimmunity under sorafenib treatment and later under imatinib treatment.<h4>Case presentation</h4>A 57-year-old man with lumbar chordoma began daily treatment of 800 mg sorafenib. He did not have any othe ...[more]