Pyramidal lobe of thyroid

The pyramidal lobe of thyroid is a normal variant. It is seen as a third thyroid lobe and is present in 10-30% of the population.

It is likely related to a remnant of the thyroglossal duct. It usually arises from the isthmus upwards along the midline or is shifted towards the left of the neck, and is usually located anterior to the thyroid cartilage. It can be involved in any diffuse thyroid parenchymal disease.


Head and neck anatomy
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Article Information

rID: 36922
System: Head & Neck
Section: Anatomy
Tag: variant
Synonyms or Alternate Spellings:
  • Pyramidal lobe of the thyroid gland
  • Pyramidal lobe of the thyroid
  • Pyramidal lobe of thyroid gland

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