In Plummer-Vinson syndrome, the region involved is: (A) Posterior pharyngeal wall, (B) Valleculae, (C) Postcricoid region, (D) Pyriform sinus
Answer is B. Plummer-Vinson syndrome (PVS), a rare clinical condition, is characterized by a triad of dysphagia, iron deficiency anemia and esophageal web in the post-cricoid region. Ref ganong's review of medical physiology 25e 676