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Right sided pyramidal lobe of thyroid gland

Authors:M J Phukon , R Dutta, G N Reddy, P Bhargabhi , N A Syed
Int J Biol Med Res. 2012; 3(2): 1839 – 1841  |  PDF File


During routine dissection of a female cadaver in the year 2011, the thyroid gland was observed to be consisting of a pyramidal lobe arising from its right side. A levator glandulae thyroidae extended from the apex of the pyramidal lobe to the hyoid bone. In this case, the isthmus is not present at the normal level i.e. 2nd to 4th tracheal rings, but an ‘S’ shaped glandular tissue extends from the right lobe at the level of lower border of thyroid cartilage to the left lobe, at the level of upper border of 2nd tracheal ring. The pyramidal lobe plays an important role in thyroid and parathyroid surgery. It may be a cause of recurrent hyperthyroidism in incomplete thyroidectomy, or even a site of