Introduction
Hashimoto thyroiditis, also recognized as chronic lymphocytic
thyroiditis, is an autoimmune condition marked by inflammation in the
thyroid gland, causing hypothyroidism1. Occasionally,
thyroid tissue can appear in unusual locations during embryonic
development, a phenomenon referred to as ectopic thyroid
tissue2. Among the rarest forms of ectopic thyroid
tissue is lingual thyroid, where thyroid tissue is located at the base
of the tongue2. Although lingual thyroid itself is
uncommon, the simultaneous presence of Hashimoto thyroiditis within
lingual thyroid tissue is an even more extraordinary and puzzling
phenomenon3.
In this particular case study, we explore a captivating instance of
Hashimoto thyroiditis identified within a lingual thyroid and presenting
as oropharyngeal mass in a young female patient. Despite the individual
rarity of these conditions, the occurrence of Hashimoto thyroiditis
within the lingual thyroid presents distinctive challenges concerning
its diagnosis and management. Recognizing such exceptional
manifestations is essential for healthcare professionals to deliver
precise diagnoses, suitable treatments, and enhanced understanding of
the fundamental mechanisms underlying autoimmune thyroid disorders.