This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Thyroid, Subject name: Surgery
Sistrunk operation is preferred treatment for 
Select and explain. 
A. Retrosternal goiter, B. Endemic goiter, C. Thyroglossal cyst, D. Adrenal Incidentaloma
C: Thyroglossal cyst
Answer: C: Thyroglossal cyst 
Explanation: Thyroglossal Cyst Congenital Age of presentation - 15-30 years Location Most common location- Subhyoid C/F Midline swelling in anterior pa of neck Thyroglossal cyst moves with deglutination Moves up on protrusion of tongue. Complications of Thyroglossal cyst- Infection - Abscess - if Incision and Drainage|Thyroglossal fistula (acquired condition due to I & D of abscess of thyroglossal cyst)- Increased risk of papillary carcinoma of thyroid Rx TOC - Sistrunk operation. The cyst passes body of hyoid bone - so excision is made Enbloc removal of central pa or body of hyoid bone + cyst.