Revision 3 for 'Goiter'

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Goiter refers to enlargement of the thyroid gland. It can occur from multiple conditions.

The definition of a goiter 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 cause of goiter is diverse 2,3:

History and etymology

Goiter derives from the Greek word for shield. 

Differential diagnosis

See main article: midline neck mass

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