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What is Web constriction is seen in which pa of esophagus, in Plummer-Vinson syndrome and explain in detail?
Predominantly, it affects females past 40 years. Barium swallow shows a web in the postcricoid region and the same can be seen on oesophagoscopy. (Ref: Textbook of diseases of ENT, PL Dhingra, 7th edition, pg no. 388)