ECE2013 Poster Presentations Thyroid (non-cancer) (100 abstracts)
Military University Hospital Prague, Prague, Czech Republic.
Introduction: Scintigraphy had long been the only modality for thyroid gland imaging. With the development of other imaging techniques (sonography, CT, MRI), the role of scintigraphy has gradually diminished. However, it cannot be completely ignored, as it is the only technique to image not only the morphological structure, but also the functional status of the thyroid gland. In the current clinical practice, thyroid scintigraphy is performed with 99mTc pertechnetate, 131I (123I) at selected facilities and 99mTc MIBI in some indications.
Possible uses of scintigraphy: i) Toxic goiter, independent adenoma, multinodular goiter (Figs 15).
ii) Functional residues of the thyroid gland after surgery (Figs 69).
iii) Ectopic thyroid gland.
iv) Thyroid nodules.
99mTc pertechnetate hypofunctional (scintigraphically cold) and 99mTc MIBI functional (scintigrafically hot) nodules have a relatively significant malignant potential (Figs 1014).
v) 131I scintigraphy.
Irreplaceable in patients after thyroid gland surgery due to thyroid cancer for visualization of thyroid gland residues and distant metastases (Figs 1416).
vi) Differential diagnosis of subacute deQuervains thyroiditis with toxic syndrome (blockage of the accumulation of radiopharmaceuticals) and immunogenic hyperthyroidism (increased accumulation). (Figs 1719)
vii) Parathyroid adenoma (Figs 2022).
Conclusion: Thyroid scintigraphy has an irreplaceable role in the confirmation of thyroid residues after total thyroidectomy (carcinoma, Graves hyperthyroidism with orbitopathy) and localization of parathyroid adenomas. It is an elegant method for differential diagnosis of the thyrotoxic syndrome in patients with subacute thyroiditis and Graves disease. It provides a complementary technique for detailed specification of thyroid gland nodules.
Figs 122 will be part of the poster.