Multinodular goiter (MNG) is the most prevalent thyroid pathology. Thyroid gland enlarge as a result of MNG, the initial extension is typically outward. After this cervical enlargement, expansion may extend in to the mediastinum. As substernal goiters enlarge within the mediastinum, vascular and visceral structures may slowly became compressed. The most common symptoms of substernal goiter result from compression of…
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