Answer- A. Infected thyroglossal cyst from sinusThyroglossal cysts are the most common cause of midline neck masses and are generally located caudal to (below) the hyoid bone.Thyroglossal Duct Cysts are a bih defect.A thyroglossal cyst is lined by pseudostratified, ciliated columnar epithelium while a thyroglossal fistula is lined by columnar epithelium.A thyroglossal duct cyst may rupture unexpectedly, resulting in a draining sinus known as a thyroglossal fistula.
Sign up free to access AI-powered MCQ practice with detailed explanations and adaptive learning.