Atypical thyroglossal duct anomalies

A Vallecular Thyroglossal Duct Cyst Presenting with Persistent Unexplained Cough in a Toddler

“…Thyroglossal duct cysts can arise anywhere from foramen cecum in the tongue to the suprasternal region [10,11]. Embryologically, the thyroid gland develops as an epithelial proliferation on the midline at the anterior floor of pharynx and then migrates from the foramen cecum inferiorly to its final position anterior to the upper portion of the trachea in the 7th week of gestation.…”

“…Embryologically, the thyroid gland develops as an epithelial proliferation on the midline at the anterior floor of pharynx and then migrates from the foramen cecum inferiorly to its final position anterior to the upper portion of the trachea in the 7th week of gestation. The duct eventually involutes, but the epithelial remnants could be left behind anywhere along the migratory pathway and aberrant pathway may result in a TGDC being developed at unusual sites [9,10,11]. It is primarily managed by surgical excision [9,10].…”

“…The duct eventually involutes, but the epithelial remnants could be left behind anywhere along the migratory pathway and aberrant pathway may result in a TGDC being developed at unusual sites [9,10,11]. It is primarily managed by surgical excision [9,10].…”

Lingual thyroglossal duct cysts—A review

“…Commonly detected in childhood, 60% are diagnosed before 20 years of age and most of these in the first five years of life itself. Atypical presentations are seen in nearly 5% [6]. Though a midline neck mass is common, 10-24% are laterally located, especially to the left.…”

“…The diagnosis of a lingual thyroglossal cyst may be difficult as compared to TGDC in usual locations. The typical case is usually a clinical diagnosis but requires careful scrutiny and judicious investigations to confirm the presence of normally situated and functioning thyroid glands prior to ablative surgery [6]. Intra oral examination and indirect laryngoscopy are useful adjuncts in the outpatient evaluation of the older child (Fig.…”