What is the paraglottic space?
Background Paraglottic space (PGS) is a connective tissue compartment of the larynx and is important in the extension of laryngeal cancer. It communicates with the preepiglottic space superiorly and with the extralaryngeal region inferiorly through the gap within the cricothyroid membrane.
What is paraglottic fat?
The paraglottic space is a fat-containing space located on either side of the larynx.
What is pre epiglottic space?
The pre-epiglottic space (PES) is a triangular fat-containing space between the epiglottis and hyoid bone.
Where is the Supraglottis located?
The upper part of the larynx (voice box), including the epiglottis; the area above the vocal cords. Anatomy of the larynx. The three parts of the larynx are the supraglottis (including the epiglottis), the glottis (including the vocal cords), and the subglottis.
What are benign tumors of the larynx?
The most common benign tumour of the larynx is papilloma (85%). Other types include: chondroma, haemangioma, lymphangioma, schwannoma, neurofibroma, adenoma, granular cell myoblastoma, leiomyoma, rhabdomyoma, fibroma, lipoma and paraganglioma.
What space is the epiglottis in?
Epiglottis — a flap of soft tissue and cartilage located just above the vocal cords. The epiglottis folds down over the vocal cords to help prevent food and irritants from entering the lungs.
What is laryngeal cyst?
Laryngeal cysts are cysts involving the larynx or more frequently supraglottic locations, such as epiglottis and vallecula. Usually they do not extend to the thyroid cartilage. They may be present congenitally or may develop eventually due to degenerative cause. They often interfere with phonation.
Where is the Preepiglottic space?
The preepiglottic space is defined superiorly by the hyoepiglottic ligament, anteriorly by the thyrohyoid membrane and the thyroid cartilage, and posteriorly by the epiglottal cartilage and the thyroepiglottic ligament, which defines the posterior and inferior interface between the preepiglottic space and the …
What is the function of the Supraglottis?
The supraglottic area includes those structures that lie above the true vocal folds (TVF) and below the tongue base. The anatomical structures present in this area that are important to speech production lie posterior to the epiglottis.
How common are benign throat tumors?
True benign tumours constitute 5% or less of all laryngeal tumours. The most common benign tumour of the larynx is papilloma (85%). Other types include: chondroma, haemangioma, lymphangioma, schwannoma, neurofibroma, adenoma, granular cell myoblastoma, leiomyoma, rhabdomyoma, fibroma, lipoma and paraganglioma.
