[Hyperthyroidism due to an ectopic intrathoracic thyroid]

Area of Science:

• Endocrinology
• Thoracic Surgery
• Medical Imaging

Background:

• Ectopic intrathoracic thyroid, or primary intrathoracic goiter, is a rare cause of mediastinal masses, accounting for approximately 1% of such cases.
• Thyroid disease presenting as an intrathoracic mass is uncommon, and its association with hyperthyroidism is exceptionally rare.

Observation:

• An 84-year-old female patient presented with hyperthyroidism.
• The cause was identified as an ectopic intrathoracic thyroid gland.

Findings:

• The patient's hyperthyroidism was successfully managed through surgical removal of the ectopic thyroid.
• The surgical approach utilized was sternotomy, a procedure often required for these rare masses.

Implications:

• This case highlights the importance of considering ectopic intrathoracic thyroid as a potential cause of hyperthyroidism, even in rare presentations.
• Surgical intervention, such as sternotomy, can be an effective treatment for this condition.
• Further research into the embryology and clinical presentation of ectopic thyroid tissue may improve diagnostic and therapeutic strategies.