Advanced
Technical
IVT
substernal goiter
A thyroid enlargement that extends below the sternum into the mediastinum. Often requires specialized surgical approaches.
Full Definition
A substernal goiter is an enlarged thyroid gland where a significant portion extends below the sternum into the superior mediastinum. This anatomical position creates unique surgical challenges, often requiring a sternotomy or thoracic approach in addition to the standard cervical incision. The condition can cause compressive symptoms including dyspnea and dysphagia. Preoperative imaging with CT or MRI is essential for surgical planning.
Usage
Usage note: Always specify anatomical extent and compression symptoms when describing substernal goiters.
In Context
- "The patient's substernal goiter extended 4 cm below the sternal notch, necessitating thoracic surgery consultation." — Operative report
- "CT imaging revealed a large substernal goiter causing tracheal compression." — Radiology report
Also known as
retrosternal goiter
mediastinal goiter
intrathoracic goiter
Contrasted with
cervical goiter
Don't confuse with
plunging goiter