Pyramidal lobe of the thyroid

Discussion:

The pyramidal lobe is a common incidental finding on imaging, especially ultrasound, which is the most common modality employed to assess the thyroid. It is a normal anatomic variant, and a recent large study found it in 21% of a large cohort of consecutive unselected patients attending for thyroid sonography 1.

Unusually in this case the variant lobe was found arising in the midline, which is the rarest position according to the aforementioned study, accounting for only 2% of pyramidal lobes, with approximately equal proportions of the remaining cases arising from the left or the right.

    Create a new playlist
Loading...