What is CA supraglottis?
Listen to pronunciation. (SOO-pruh-GLAH-tis) The upper part of the larynx (voice box), including the epiglottis; the area above the vocal cords.
What is Glottic larynx?
The larynx is divided into three anatomical regions or levels: Supraglottis: Tissues above the sound producing structures. Glottis: The sound producing vocal cords. Subglottis: The area below the vocal cords but above the windpipe or trachea.
What is glottic cancer?
Glottic cancer is defined as a malignancy arising from the true vocal cords and the anterior and posterior commissure of the larynx.
What is Postcricoid?
The postcricoid region is a subsite of the hypopharynx, comprising the anterior wall. The area includes the mucosa, intramural fat, and a rich venous plexus 1-3.
What causes glottic cancer?
It’s not clear exactly what causes laryngeal cancer, but your risk of getting the condition is increased by: smoking tobacco. regularly drinking large amounts of alcohol.
Is Stage 3 larynx cancer curable?
In some cases, larynx cancer (laryngeal cancer) can be cured with treatment. The 5-year survival rate for stage 3 larynx cancer is about 60%, meaning 60% of people with larynx cancer will survive for 5 years or more after diagnosis.
What is rima glottidis?
The rima glottidis is the potential space between the vocal ligaments contained within these intrinsic ligaments and membranes. Serving as the primary conduit for airflow within the larynx, the rima glottidis may be open or closed secondary to abduction or adduction of the vocal folds, respectively.
Where is Postcricoid?
The postcricoid region of the hypopharynx includes the mucosa and submucosa extending from the inferior aspect of the arytenoids to the bottom of the cricoid cartilage. The lateral margins merge with the medial wall of each pyriform sinus at approximately that level where the cricoid cartilage makes an anterior bend.
What is Pyriform Fossae?
The pyriform sinus (also spelled piriform sinus and also known as the pyriform recess, pyriform fossa, and smuggler’s fossa) is the pear-shaped subsite of the hypopharynx located posterolaterally to either side of the laryngeal opening.
What is glottic efficiency?
The ability to close (adduct) the vocal folds efficiently and easily – and to vibrate them strongly through rapid opening and closing cycles – is referred to as glottic efficiency.
What are The racial predilections of larynx cancer?
Larynx cancer occurs more commonly in men than women. Additionally, racial disparities exist with African-Americans presenting at a younger age and having a higher incidence and mortality as compared to Caucasians.
Does XRT cause voice injury in larynx?
However, even for patients undergoing laryngeal preservation, XRT is known to cause voice injury; therefore, post-treatment evaluation and voice training should be considered for patients undergoing XRT. 61 Similarly, if a tracheostomy is placed, then patients should be instructed in proper maintenance.
What is the VA larynx cancer study group?
The landmark initial trial was the VA Larynx Cancer Study Group (VALCSG) trial. The study was a prospective, randomized, phase 3 clinical trial designed to compare induction chemotherapy followed by XRT versus total laryngectomy followed by postoperative XRT for stage III and IV laryngeal cancer.
What is the best approach to treat larynx cancer?
Practitioners need to rely on a multidisciplinary team approach in treating larynx cancer. The multidisciplinary team includes among others, head and neck surgeons, radiation oncologists, medical oncologists, head and neck radiologists, nutritionists, as well as speech therapists.