Histopathological Characterization and Whole Exome Sequencing of Ectopic Thyroid: Fetal Architecture in a Functional Ectopic Gland from Adult Patient
Joint Authors
Camargo, Anamaria Aranha
Camargo, Rosalinda Yasato
Kanamura, Cristina Takami
Friguglietti, Celso Ubirajara
Iorcansky, Sonia
Tincani, Alfio José
Bezerra, Ana Karina
Brust, Ester
Koyama, Fernanda Christtanini
Rego, Fernanda Orpinelli R.
Galante, Pedro Alexandre Favoretto
Medeiros-Neto, Geraldo
Rubio, Ileana Gabriela Sanchez
Nogueira, Célia Regina
Source
International Journal of Endocrinology
Issue
Vol. 2018, Issue 2018 (31 Dec. 2018), pp.1-10, 10 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2018-02-08
Country of Publication
Egypt
No. of Pages
10
Main Subjects
Abstract EN
Ectopic thyroid results from a migration defect of the developing gland during embryogenesis causing congenital hypothyroidism.
But it has also been detected in asymptomatic individuals.
This study aimed to investigate the histopathological, functional, and genetic features of human ectopic thyroids.
Six samples were histologically examined, and the expression of the specific thyroid proteins was assessed by immunohistochemistry.
Two samples were submitted to whole exome sequencing.
An oropharynx sample showed immature fetal architecture tissue with clusters or cords of oval thyrocytes and small follicles; one sample exhibited a normal thyroid pattern while four showed colloid goiter.
All ectopic thyroids expressed the specific thyroid genes and T4 at similar locations to those observed in normal thyroid.
No somatic mutations associated with ectopic thyroid were found.
This is the first immature thyroid fetal tissue observed in an ectopic thyroid due to the arrest of structural differentiation early in the colloid stage of development that proved able to synthesize thyroid hormone but not to respond to TSH.
Despite the ability of all ectopic thyroids to synthetize specific thyroid proteins and T4, at some point in life, it may be insufficient to support body growth leading to hypothyroidism, as observed in some of the patients.
American Psychological Association (APA)
Camargo, Rosalinda Yasato& Kanamura, Cristina Takami& Friguglietti, Celso Ubirajara& Nogueira, Célia Regina& Iorcansky, Sonia& Tincani, Alfio José…[et al.]. 2018. Histopathological Characterization and Whole Exome Sequencing of Ectopic Thyroid: Fetal Architecture in a Functional Ectopic Gland from Adult Patient. International Journal of Endocrinology،Vol. 2018, no. 2018, pp.1-10.
https://search.emarefa.net/detail/BIM-1171435
Modern Language Association (MLA)
Camargo, Rosalinda Yasato…[et al.]. Histopathological Characterization and Whole Exome Sequencing of Ectopic Thyroid: Fetal Architecture in a Functional Ectopic Gland from Adult Patient. International Journal of Endocrinology No. 2018 (2018), pp.1-10.
https://search.emarefa.net/detail/BIM-1171435
American Medical Association (AMA)
Camargo, Rosalinda Yasato& Kanamura, Cristina Takami& Friguglietti, Celso Ubirajara& Nogueira, Célia Regina& Iorcansky, Sonia& Tincani, Alfio José…[et al.]. Histopathological Characterization and Whole Exome Sequencing of Ectopic Thyroid: Fetal Architecture in a Functional Ectopic Gland from Adult Patient. International Journal of Endocrinology. 2018. Vol. 2018, no. 2018, pp.1-10.
https://search.emarefa.net/detail/BIM-1171435
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1171435