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Pendulum swings from hypo- to hyperthyroidism: thyrotoxicosis after severe hypothyroidism following neck irradiation in a patient with a history of Hodgkin's lymphoma.


ABSTRACT: BACKGROUND:A change in a thyrometabolic state from severe hypothyroidism to thyrotoxicosis is very uncommon, but possible in some circumstances. CASE PRESENTATION:A 27-year old female presented with clinical and biochemical thyrotoxicosis with a previous history chemo- and radiotherapy (including the neck region) for a Hodgkin's lymphoma (at the age of 18). At the age of 20 this was followed by severe hypothyrodism [TSH?>?100 ?IU/mL (reference range: 0.27-4.2)]. She was stated on L-thyroxine, but the dose was later reduced and subsequently discontinued. She had significantly elevated titres of both anti-thyroid peroxidase antibodies and anti-TSH-receptor antibodies throughout the course of disease. Thyroid scintigraphy revealed a normal and homogenous iodine uptake. CONCLUSIONS:We suspect that a gradual switch from thyroid-blocking to thyroid-stimulating antibodies resulted in development of an overt thyrotoxicosis, possibly with a contributory effect of neck irradiation on her autoimmune status.

SUBMITTER: Lewandowski K 

PROVIDER: S-EPMC4714489 | biostudies-other | 2016

REPOSITORIES: biostudies-other

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Pendulum swings from hypo- to hyperthyroidism: thyrotoxicosis after severe hypothyroidism following neck irradiation in a patient with a history of Hodgkin's lymphoma.

Lewandowski Krzysztof K   Dąbrowska Katarzyna K   Makarewicz Jacek J   Lewiński Andrzej A  

Thyroid research 20160115


<h4>Background</h4>A change in a thyrometabolic state from severe hypothyroidism to thyrotoxicosis is very uncommon, but possible in some circumstances.<h4>Case presentation</h4>A 27-year old female presented with clinical and biochemical thyrotoxicosis with a previous history chemo- and radiotherapy (including the neck region) for a Hodgkin's lymphoma (at the age of 18). At the age of 20 this was followed by severe hypothyrodism [TSH > 100 μIU/mL (reference range: 0.27-4.2)]. She was stated on  ...[more]

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