Goiter classification

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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]

Overview

Goiter is defined as an enlargement of the thyroid gland.

Classification

They are classified in different ways:

• A "diffuse goitre" is a goitre that has spread through all of the thyroid (and can be a "simple goitre", or a "multinodular goitre").
• "Toxic goitre" refers to goitre with hyperthyroidism. These most commonly due to Graves disease, but can be caused by inflammation or a multinodular goitre.
• "Nontoxic goitre" (associated with normal or low thyroid levels) refers to all other types (such as that caused by lithium or certain other autoimmune diseases).