Dual ectopic lingual and sublingual thyroid gland is an extraordinarily rare condition. We present 1 patient with subclinical hypothyroidism. The clinical examination revealed that the thyroid gland was not palpable in its usual cervical location, whereas ultrasonography confirmed an empty thyroid bed without any ectopic thyroid tissue in the rest of the neck. The final diagnosis of dual ectopic lingual and sublingual thyroid was established by ultrasound examination through the mouth floor and confirmed by scintigraphy and CT thereafter.
From the *Department of Nuclear Medicine, and †Clinical Institute of Radiology, University Hospital Split, University of Split Medical Faculty, Split, Croatia.
Received for publication May 16, 2013; revision accepted January 27, 2014.
Conflicts of interest and sources of funding: none declared.
Reprints: Vinko Marković, MD, PhD, Department of Nuclear Medicine, University Hospital Split, University of Split Medical Faculty, Split, Spinčićeva 1, 21 000 Split, Croatia. E-mail: email@example.com.