Ectopic thyroid tissue

• Ectopic thyroid can be described as functional thyroid tissue that is located anywhere other than its normal anatomic position.

• Ectopic thyroid tissue is typically located along the path of thyroid gland descent, rarely can be found in the mediastinum, heart, diaphragm, and esophagus.

• The prevalence of ectopic thyroid tissue is about 1 in 100,000–300,000 people and that increases to 1 in 4000–8000 patients with thyroid pathology.

Picture 1:

Well defined 9*6*5mm solid iso echoic mildly vascular nodule seen sublingual in 9y old male.

Picture 2:

Similar feature nodule 18*15*15mm nodule in 13y male Sublingual.

Picture 3:

Well defined 18*14*11mm solid mildly hypoechoic nodule on supper surface of hyoid bone in 7 y old male.

Picture 4:

Well defined elongated solid iso echoic mildly vascular nodule in mid line over the thyroid cartilage 31*15*6mm in 13 y male.