Ectopic thyroid mass in the left lateral neck and anterior mediastinum: a case report

Abstract

IntroductionEctopic thyroid is characterized by the presence of thyroid tissue in a site other than in its usual pretracheal region. It is a rare condition among the thyroid diseases. Dural ectopic thyroid present in the cervical and anterior mediastinal has not been reported.Case presentationA 45-year-old Chinese woman presented with a nonfunctional ectopic thyroid located both in the cervical and anterior mediastinum. The ectopic thyroid was removed under video-assisted thoracoscopic surgery using a transverse neck incision and her postoperative period has been uneventful thus far.ConclusionsEctopic thyroid is a rare condition among the thyroid diseases, and its location in the anterior mediastinum is even more uncommon. Less than 15 cases have been reported in the last four decades. This is the first case of ectopic thyroid to appear in both the cervical and anterior mediastinum at same time. Masses in the anterior mediastinal are usually thymoma, lymphoma, pheochromocytoma and germ cell tumors. Ectopic thyroid in this area is quite rare so this case enhances our understanding of the diagnosis of mediastinal masses.

Mucosa-associated lymphoid tissue (MALT) lymphoma developing in ectopic mediastinal thyroid tissue: a case report

“…Patients with ectopic mediastinal tissue are often asymptomatic and functionally euthyroid at presentation [13,14], whereas, most patients with thyroid lymphoma are thought to show a rapidly enlarging goiter [15]. Dysphasia, dyspnea, hoarseness, Horner syndrome, and superior vena cava syndrome can occur if the mass enlarges to compress the surrounding tissues.…”

A unique presentation of ectopic thyroid, a case report

“…Any change in this developmental progression can lead to the presence of an ectopic thyroid. Many ectopic thyroid locations have been reported before, including the mediastinum, heart, adrenal glands, and ovaries, among other locations [4], [5], [6], [7]. Ectopic thyroid is most commonly asymptomatic, with an incidental discovery, however, hyperthyroidism, hypothyroidism, and thyroid cancer can lead to the discovery of the ectopic thyroid tissue.…”

Seorang Penderita dengan Retrosternal Goiter

“…9 Pada beberapa individuembriologycal origin kelenjar tiroid dapat menetap sampai usia dewasa tergantung kelainan pada proses embriologi. Berikut adalah anatomi dan patologi ektopik tiroid: 11,12,13 (1) Foramen Caecum; pada orang dewasa sisa foramen caecum dapat dilihat pada persambungan antara 2/3 anterior dan 1/3 posterior lidah, (2) Lingual thyroid; Pada saat kelenjar tiroid gagal migrasi ke leher, akan meninggalkan benjolan kelenjar tiroid pada bagian belakang lidah, (3) Kista thyroglossal; selama proses embriologi, kelenjar tiroid masih terhubung dengan lidah melalui duktus thyroglossal. Kemudian duktus ini mengeras dan akan menghilang.…”

“…8 Retrostenal goiter sekunder berbeda dengan retrosternal goiter primer (ektopik tiroid). Retrosternal goiter primer harus memenuhi syarat-syarat sebagai berikut: 9,11,13 (1) Suplai darah terpisah (independent), (2) Kelenjer tiroid leher normal, (3) Proses patologis berbeda antara kelenjar tiroid leher dan kelenjar tiroid ektopik, dan (4) Tidak ada riwayat keganasan kelenjar tiroid sebelumnya.…”