Ectopic Mediastinal Thyroid Gland. A Case Report and Review of the Literature.
DOI:
https://doi.org/10.2015/hc.v5i2.169Abstract
ABSTRACT
Background: Ectopic thyroid tissue is the result of abnormal migration of the thyroid gland from the floor of the primitive foregut to its pretracheal position.
Case presentation: A case of a 59-year-old man with a posterior mediastinal mass that proved to be ectopic intrathoracic thyroid is presented. The mass was completely excised through a right posterolateral thoracotomy and pathologic examination confirmed multinodular goiter. Relevant literature is briefly reviewed.
Conclusions: Surgical excision is the mainstay of the treatment for almost all mediastinal masses including ectopic thyroid.
KEY WORDS: ectopic thyroid, mediastinum
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- Figure 1: Chest x-ray revealed a mass in the superior mediastinum with tracheal deviation.
- Figure 2: Intraoperative findings revealed a firm and encapsulated mass in the posterior mediastinum next to the superior vena cava and the trachea.
- Figures 3: Macroscopic appearance of the resected specimen.
- Figure 4: Macroscopic appearance of the resected specimen.
- Figure 5: Histopathologic examination of the mass, using hematoxylin-eosin revealed multinodular goiter (irregularly enlarged follicles with flattened epithelium consistent with inactivity).
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