part_of part of part of has_disease_location thyroid gland disorder tongue lingual thyroid MedDRA:10069122 SNOMEDCT:21279007 A condition characterized by the presence of rudimentary THYROID tissue at the base of the TONGUE. It is due to failed embryonic development and migration of thyroid tissue to its normal location. The lingual thyroid usually cannot maintain adequate hormone production thereby resulting in HYPOTHYROIDISM. MESH:D046151 Sirarat Sarntivijai