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What is The upward extension of thyroid swelling is prevented by which of the following structure attached to thyroid cailage and explain in detail?
Pretacheal fasciaprevents upward extension of thyroid swelling. It goes antero-lateral to trachea and continues posteriorly around oesophagus and as pharynx as buccopharyngeal fascia. It encloses: Trachea and oesophagus Thyroid gland Ant. Neck muscles