<prompt> Paterson-Kelly syndrome is associated with the following deficiency:IronZincMagnesiumMolybdenum  <response>: In long-standing iron deficiency, mucosal atrophy of laryngopharynx may lead to web formation in the postcricoid region, thereby giving rise to dysphagia Paterson-Kelly also known as Plummer-Vinson syndrome. It is also associated with koilonychia, angular stomatitis, and a sore tongue. If these alterations are of long duration, they may lead to pharyngeal carcinoma. Ref: Beutler E. 2010. Chapter 42. Disorders of Iron Metabolism. In J.T. Prchal, K. Kaushansky, M.A. Lichtman, T.J. Kipps, U. Seligsohn Eds, Williams Hematology, 8e. 