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Most thyroglossal duct cysts are situated below the hyoid bone (infrahyoid/sub-hyoid): series consistently report 75–85 % in this location, not merely 40 % [Lee et al., 2012, PMID 23323225; Patigaroo et al., 2017, PMID 28239589]. The other statements are correct: the lesion is congenital, it can be lined by pseudostratified columnar epithelium, and infection may lead the cyst to form a sinus/fistula.