What is killians triangle?

Killian's triangle is a region on the anterior wall of the neck that is formed by the convergence of the cricopharyngeus muscle, the inferior constrictor muscle of the pharynx, and the thyroid gland. It is located between the sternocleidomastoid muscle and the midline of the neck. This area is clinically significant due to the potential for the formation of a Zenker's diverticulum, which is a pouch that can form in this region as a result of increased pressure during swallowing. Zenker's diverticulum can cause symptoms such as dysphagia, regurgitation, and halitosis. It is named after Irish surgeon John Greer Killian (1900-1965), who first described the triangle in 1949.