Case of Newborn

A healthy baby boy weighing 3420 g was delivered after a routine pregnancy at 40 weeks gestation, with an Apgar score of 9-10-10. Upon examination, the infant revealed a 5 mm-diameter lingual lump anteriorly positioned in the midline. It was not unpleasant, but it had a firm consistency. There were no issues with feeding or breathing. Congenital hypothyroidism screening, however, came out positive. He had levothyroxine therapy. Technetium 99m scans and ultrasound results from additional research pointed to dystrophic cervical thyroid tissue. Studies using immunohistochemistry and histopathology revealed that the tumour had no thyroid tissue. This was to be expected because ectopic thyroid tissue on the tongue is often found posteriorly. Further histological analysis revealed smooth muscle fibres and striated vascular tissue.1