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Thyroid Abnormality - Pyramidal Lobe

A common thyroid anatomical variation seen in as high as half anatomical dissections and more frequently in men than in women.[1] Because of the common nature of this anatomical variation and often with no impact upon thyroid function, it may not be classified as a true developmental abnormality.


A third lobe, of conical shape, called the pyramidal lobe, frequently arises from the upper part of the isthmus, or from the adjacent portion of either lobe, but most commonly the left, and ascends as far as the hyoid bone. It is occasionally quite detached, or may be divided into two or more parts.

Links: thyroid

References

  1. Braun EM, Windisch G, Wolf G, Hausleitner L & Anderhuber F. (2007). The pyramidal lobe: clinical anatomy and its importance in thyroid surgery. Surg Radiol Anat , 29, 21-7. PMID: 17146601 DOI.



Cite this page: Hill, M.A. (2024, April 27) Embryology Thyroid pyramidal lobe.jpg. Retrieved from https://embryology.med.unsw.edu.au/embryology/index.php/File:Thyroid_pyramidal_lobe.jpg

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© Dr Mark Hill 2024, UNSW Embryology ISBN: 978 0 7334 2609 4 - UNSW CRICOS Provider Code No. 00098G

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current10:46, 6 October 2009Thumbnail for version as of 10:46, 6 October 2009300 × 338 (19 KB)S8600021 (talk | contribs)Thyroid abnormalities - pyramidal lobe Category:Endocrine Category:Thyroid Category:Abnormal Development