This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Neck, Subject name: Surgery
20-year-old female presents with a cystic swelling in the neck- It moves up with protrusion of tongue. 
Select and explain. 
A. Thyroid swelling, B. TG cyst, C. Sublingual gland swelling, D. Ranula- plunging
B: TG cyst
Answer: B: TG cyst 
Explanation: Ans. (b) TG cyst* Thyroglossal cyst moves with protrusion of tongue* Other swellings which move only with deglutition are - Subhyoid bursitis, Midline Dermoid cyst and Thyroid swelling.