Which of the following is known as "Gateway of tears"?: (A) Killian's dehiscence, (B) Rathke's pouch, (C) Waldeyer's ring, (D) Sinus of Morgagni
Answer is A. Inferior constrictor muscle has two pas: Thryopharygeus with oblique fibres Cricopharyngeus with transverse fibres Between these two pas exists a potential gap called Killian&;s Dehiscence also called "Gateway of tears" - As perforation can occur at this site during esophagectomy. (Ref: Textbook of diseases of ENT, PL Dhingra, 7th edition, pg no. 310)