Double pyramidal lobe of the thyroid gland

Abstract

No. 137 from 2015, we wrote about the importance and incidence of the pyramidal lobe of the thyroid gland (Lalovet's lobe). ( 1 ) However, at that time we did not mention the possibility of its double occurrence. We encountered this extremely rare variation during total thyroidectomy in a 59-year-old woman with papillary carcinoma of the right lobe of the thyroid gland (Figure 1). Given the fact that, in the literature available to us, only four cases (all female) of a double pyramidal lobe have been reported ( 2 – 5 ), we consider it necessary to inform clinicians involved in thyroid surgery about the possibility of this variation as well.