Thyroglossal Cyst

  • Thyroglossal cyst presents as a cystic midline neck swelling usually affecting young children but can occur at any age.
  • Development of thyroid cartilage starts at foramen caecum, passes through base of tongue & then descends in front, behind or through the hyoid bone to form the thyroid gland.
  • The thyroglossal cyst can occur anywhere in the course of thyroid duct & it may contain the only functioning thyroid tissue in the body.
  • Rarely carcinoma may develop in the cyst.
  • It’s size increases in size with upper respiratory tract infection.
  • Sometimes it may presents as a draining sinus if it has burst due to infection or has burst due to infection or has been surgically drained.
  • It moves with protrusion of tongue due to it’s attachment to base of tongue.
  • Complete surgical excision, including body of hyoid bone and tongue tissue around the tract in the suprahyoid  region.
  • Simple excision of cyst without removal of its tract leads to recurrence.