The pre-epiglottic space of the larynx is clinically important in laryngeal carcinoma because:
- A Supraglottic tumors extending into this space upstage the tumor and preclude partial laryngectomy ✓
- B It contains the recurrent laryngeal nerve and is at risk during thyroidectomy
- C It is the first site of subglottic extension in glottic carcinoma
- D It communicates directly with the parapharyngeal space, allowing tumor spread to the skull base
Correct answer: A. Supraglottic tumors extending into this space upstage the tumor and preclude partial laryngectomy
Explanation
The pre-epiglottic space (PES) is a fat-filled space anterior to the epiglottis bounded by the thyrohyoid membrane anteriorly, the vallecula superiorly, and the hyoepiglottic ligament. Supraglottic tumors frequently invade this space, which is significant because PES invasion upstages the tumor to T3 and precludes supraglottic laryngectomy (making the patient ineligible for partial laryngectomy). The recurrent laryngeal nerve is in the tracheoesophageal groove, not the PES. Subglottic extension occurs below the vocal cords, not through the PES.
Reference: Dhingra Diseases of Ear, Nose and Throat, 7th ed.
High-yield for: NEET PGINI-CETNExTFMGEUSMLEPLABMRCP
Written and medically reviewed by the StethoPrep medical team.