Intracardiac Ectopic Thyroid (Struma Cordis)

Abstract

A 67-year-old male with a history of gastrointestinal malignancy was found to have a tumor in the right ventricular outflow tract. The tumor was surgically removed, and the histological diagnosis was thyroid struma. We review the literature on this rare cardiac tumor.

Ectopic thyroid tissue: An unusual cause of intracardiac mass

“…The distal part of the bulbus cordis (infundibulum) subsequently developing into the RVOT. 4,5 Secondly, the normal development of IVS and thyroid gland is associated with the migration of neural crest cells. The attachment of thyroid tissue to IVS may be partly due to defective neural crest migration.…”

Tiroides ectópica dual hiperfuncionante: Abordaje quirúrgico dual

“…La ubicación lingual corresponde al 90% de los tiroides ectópicos 5,6 . Otras localizaciones ectópicas: son las submandibulares 7,8 , intratraqueales 9,10 , intratorácicas 11,12 , intracardiacas 13,14 , mediastinales 15,16 , e infradiafragmáticas como en el hígado 17 , vesícula biliar 18,19 , páncreas 20 , duodeno 21 , mesenterio 22 , adrenales 23,24 , en la porta 25,26 e incluso se ha descrito tejido tiroideo ectópico en ovarios conocido como strumma ovari siendo este un teratoma ovárico con predominio tiroideo [27][28][29][30] .…”

Follicular adenoma in ectopic thyroid. A case-report

“…The term ectopic thyroid tissue is used to define thyroid tissue that is not located in the usual anterior region of the neck, in the pretracheal space, between the second and third cartilage rings [1] . The presence of thyroid tissue in other areas is characterized by the absence of anatomic and above all vascular connections with the main gland.…”

“…The presence of thyroid tissue in other areas is characterized by the absence of anatomic and above all vascular connections with the main gland. This condition is referred to as “aberrant thyroid” [1] .…”

“…In the domain of thyroid dysgenesis, an important distinction must be made with the much more frequent “accessory thyroid” (90% vs 10%), which is related to the presence of excessive thyroid formations that maintain a connection to a normally positioned main gland [1] .…”