This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: ENT
True statement about Infraglottic carcinoma of larynx is 
Select and explain. 
A. Commonly spreads to mediastinal nodes, B. Second most common carcinoma, C. Most common carcinoma, D. Spreads to submental nodes
A: Commonly spreads to mediastinal nodes
Answer: A: Commonly spreads to mediastinal nodes 
Explanation: Subglottic cancer is the rarest of laryngeal cancer. Earliest presentation is a globus or foreign body sensation in throat followed by stridor or laryngeal obstruction. Hoarseness is a late feature and occurs due to involvement of glottis or recurrent laryngeal nerve. Lymphatic spread occurs to prelaryngeal, pretracheal, paratracheal and lower jugular nodes (i.e. mediastinal nodes.)