True about Zenker's diveiculum is all, EXCEPT:: (A) Originates from the anterior wall of the esophagus, (B) Occurs through triangular area of weakness, (C) It tends to dete from the midline, mostly to the left, (D) None of the above
Answer is A. Zenker diveiculum originates from the posterior wall of the esophagus in a triangular area of weakness, limited inferiorly by the cricopharyngeus muscle and superiorly by the inferior constrictor muscles (ie, the Killian triangle). As the diveiculum enlarges, it tends to dete from the midline, mostly to the left