Goitre refers to enlargement of the thyroid gland. It can occur from multiple conditions.
The definition of a goitre depends on age and sex; below are the upper limits of normal for thyroid gland volume 1:
- adult males: 25 mL
- adult females: 18 mL
- 13-14 years: 8-10 mL
- 3-4 years: 3 mL
- neonate: 0.8-1.5 mL
The prevalence of goitre varies widely depending on the level of iodine deficiency. In severely iodine deficient areas the prevalence may be as a high as 80%. Goitre is more common in women (M:F = 1:4) and incidence declines with age 5.
The thyroid gland may become so enlarged that it becomes a substernal goitre.
The cause of goitre is diverse 2,3:
- non-toxic simple goitre (e.g. from iodine deficiency)
- Graves' disease
- multinodular goitre
- Hashimoto thyroiditis
- thyroid cancer
- drugs: lithium, amiodarone, etc
- diet: cabbage, sprouts, etc
- depositional disease, e.g. amyloidosis
History and etymology
The word "goitre" derives from the old French goitron ‘gullet’, based on Latin guttur ‘throat’.
See main article: midline neck mass.
- thyroid inflammatory disease
- thyroid neoplasms
- thyroid nodules
- assessment of thyroid lesions
- postoperative assessment after thyroid cancer surgery
- ultrasound-guided fine needle aspiration of the thyroid
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