Dual Ectopic Thyroid with Normally Located Thyroid : A Case Report

الملخص EN

Dual ectopic thyroid is a rare presentation of thyroid ectopia.

Only a few cases have been reported in the world literature.

Dual ectopic thyroid in the presence of a normally located thyroid is even rarer.

We report a case of dual ectopic thyroid in the lingual and submandibular areas in a seventeen-year-old female with hypoplastic thyroid gland in its normal location.

The patient presented with a midline swelling at the base of tongue with dysphagia.

Thyroid function test revealed primary hypothyroidism.

Ultrasonography of the neck showed hypoplastic thyroid in its normal location.

A thyroid scan with Technetium-99 m pertechnate showed two intensely hyperfunctioning foci of ectopic thyroid tissue at a higher level in the midline consistent with dual ectopic thyroid, one at the base of tongue and the other in submental region.

No uptake was seen in the normal bed.