Single photon emission tomography in detection of the lingual thyroid ectopy. Its use in newborn with the congenital hypothyroidism – case report
Authors:
J. Doležal 1; D. Neumann 2
Authors‘ workplace:
Oddělení nukleární medicíny FN, Hradec Králové
vedoucí doc. MUDr. J. Doležal, Ph. D.
1; Dětská klinika LF UK a FN, Hradec Králové
přednosta prof. MUDr. M. Bayer, CSc.
2
Published in:
Čes-slov Pediat 2015; 70 (3): 179-182.
Category:
Reviews
Overview
Aim:
To present the importance of planar scintigraphy with 99mTc-pertechnetate sodium with single photon emission tomography (SPECT) in the diagnotics of ectopic thyroid.
Material and method:
We examined a newborn girl with congenital hypothyroidism (CH), which does not show a thyroid parenchyma in the usual location of the neck by ultrasound. Planar whole-body scintigraphy using front and lateral projections and static scintigrams of the head, neck and mediastinum with 99mTc-pertechnetate sodium (25 MBq intravenously), completed by SPECT detected a suspicious non-physiological uptake of the tracer, which was identified in the oral cavity. The examination was performed at previously initiated L-thyroxine treatment.
Results:
SPECT of the head, neck and chest revealed the presence of ectopic thyroid tissue in the root of the tongue.
Conclusion:
Scintigraphy with 99mTc-pertechnetate with variable addition of SPECT is essential to diagnose thyroid ectopia. Both complete an ultrasound imaging in neonates with CH, as ultrasound is not of enough value to diagnose the thyroid gland if it is not present in normal localization or do not display clear characteristics of thyroid tissue. Scntigraphy is also helpful for cases of suspected dyshormonogenesis and correct etiological diagnosis of certain types of hypothyroidism later in life.
Key words:
SPECT, hypothyroidism, lingual thyroid, newborn D.
Sources
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Labels
Neonatology Paediatrics General practitioner for children and adolescentsArticle was published in
Czech-Slovak Pediatrics
2015 Issue 3
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