Median Ectopic Thyroid Research Articles

Redefining anatomy in a case of midline subhyoid ectopic thyroid.

Ectopic thyroid is an uncommon embryological aberration of the thyroid descent. Subhyoid median ectopic thyroid gland is a result of incomplete descent of the thyroid anlage and is characterized by a cosmetically unacceptable ovoid mass of thyroid tissue in the midline overlying the thyroid cartilage and thyrohyoid membrane. A normally placed thyroid gland is not detectable and in most cases all functioning thyroid tissue is located within the mass. Most of the ectopic thyroids are usually mistaken for a thyroglossal cyst and excised. Severe myxedema follows removal. Many cases have been reported in the literature, none of which was recognized prior to operation. All patients were operated upon for removal of a thyroglossal duct cyst. The diagnosis was missed at operation and in these cases severe myxedema was universal. The cause of the myxedema was not always immediately recognized. Therefore, many diagnostic tests including thyroid function test, ultrasound of the neck, and thyroid scanning had been recommended in the preoperative evaluation of a thyroglossal cyst. Here, we present a case of ectopic thyroid mass which was the only thyroid tissue present in the neck. So, division and repositioning of the thyroid mass thereby redefining the anatomy was done with good cosmetic results.

Papillary thyroid carcinoma arising from a median ectopic thyroid with no thyroglossal duct remnant.

Thyroid carcinomas arising from ectopic thyroid tissue are uncommon;most of them arise from thyroid tissue in thyroglossal cysts. A rare case of a 66-year-old woman with papillary thyroid carcinoma arising from median ectopic thyroid tissue lacking a thyroglossal duct remnant is reported. The tumor was resected by Sistrunk's procedure, and the patient's postoperative course was good.

Redefining Anatomy in a Case of Midline Subhyoid Ectopic Thyroid

ABSTRACTEctopic thyroid is an uncommon embryological aberration of the thyroid descent. Subhyoid median ectopic thyroid gland is a result of incomplete descent of the thyroid anlage and is characterized by a cosmetically unacceptable ovoid mass of thyroid tissue in the midline overlying the thyroid cartilage and thyrohyoid membrane. A normally placed thyroid gland is not detectable and in most cases all functioning thyroid tissue is located within the mass. Usually it is mistaken for a thyroglossal cyst and excised. Severe myxedema follows removal. Many cases have been reported in the literature, none of which was recognized prior to operation. All patients were operated upon for removal of a thyroglossal duct cyst. The diagnosis was missed at operation and in these cases severe myxedema was universal. The cause of the myxedema was not always immediately recognized. Therefore, many diagnostic tests including thyroid function test, ultrasound of the neck and thyroid scanning had been recommended in the preoperative evaluation of a thyroglossal cyst. Here, we present a case of ectopic thyroid mass which was the only thyroid tissue present in the neck. So division and repositioning of the thyroid mass thereby redefining the anatomy was done with good cosmetic result.How to cite this articleNaik KM. Redefining Anatomy in a Case of Midline Subhyoid Ectopic Thyroid. Int J Head and Neck Surg 2012;3(3):179-181.

Papillary Adenocarcinoma in Ectopic Thyroid

A single case of papillary adenocarcinoma of median ectopic thyroid is presented. There have been 96 other similar cases reported in the English literature. Since the tumor rarely involves the cervical lymphatics or thyroid gland in the absence of a palpable mass, local excision with the Sistrunk procedure is the recommended therapy. Suppression doses of thyroid hormone may be of benefit.

Carcinoma arising in median ectopic thyroid (including thyroglossal duct tissue).

Carcinoma may arise in ectopic thyroid tissue. In this report, seven cases of papillary carcinoma found in association with median ectopic thyroid rests are discussed. Six patients presented with midline lesions in the thyrohyoid space. These were diagnosed clinically as thyroglossal duct cysts. The seventh lesion was described as a mass in the region of the submandibular salivary gland. All seven patients were treated initially with local resections. Ectopic apparently normal thyroid follicles were demonstrated in all seven specimens; in four, a thyroglossal duct cyst was also recognized. A separate microscopic focus of papillary carcinoma was identified in the thyroid gland in one of the three individuals who subsequently underwent total thyroidectomy. None of the seven patients, followed for from 6 months to 15 years, has had clinical evidence of recurrent disease. The differentiation between a carcinoma arising in median ectopic thyroid tissue and a metastatic papillary carcinoma from an occult primary in the main thyroid gland is discussed.

Subhyoid Median Ectopic Thyroid

Subhyoid Median Ectopic Thyroid

A SUBHYOID MEDIAN ECTOPIC THYROID GLAND.

A SUBHYOID MEDIAN ECTOPIC THYROID GLAND.

Surgical management of subhyoid median ectopic thyroid

Surgical management of subhyoid median ectopic thyroid

Surgical Management of Subhyoid Median Ectopic Thyroid

Surgical Management of Subhyoid Median Ectopic Thyroid

Surgical management of subhyoid median ectopic thyroid.

Surgical management of subhyoid median ectopic thyroid.

A subhyoid median ectopic thyroid.

A subhyoid median ectopic thyroid.