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Thyroid vein of Kocher

Besides the superior, middle, and inferior thyroid veins, a person can have one more vein that drains the thyroid gland- the thyroid vein of Kocher. It can be present on either one or both sides of the gland.

The thyroid vein of Kocher is an inconsistent vein that emerges from the lower aspect of the thyroid lobe. It arises between the middle and inferior thyroid veins and drains into the internal jugular vein near the site, where it unites with the subclavian vein.

The thyroid vein of Kocher drains the inferior aspect of the thyroid lobe.

Veins of the head and neck, Superficial veins of the neck, Thyroid gland, Thyroid gland, Thyroid plexus, Thyroid vein of Kocher, Anterior view
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