This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Miscellaneous, Subject name: Medicine
Which of the following is true about plummer vinson syndrome? 
Select and explain. 
A. More chances of development in males, B. Associated vitamin B 12 deficiency may be present, C. It is different from Paterson - Brown - Kelly syndrome, D. It does not increase the risk of malignant transformation
B: Associated vitamin B 12 deficiency may be present
Answer: B: Associated vitamin B 12 deficiency may be present 
Explanation: Ans. is 'b' i.e., Associated vitamin B 12 deficiency may be present Plummer-Vinson syndrome (PVS)* Plummer-Vinson syndrome (PVS), also called Paterson-Brown-Kelly syndrome or sideropenic dysphagia, is a rare disease characterized by difficulty in swallowing, iron deficiency anemia, glossitis, cheilosis and esophageal webs.* These patients have a female preponderance, and association with post cricoid stenosis, web formation and increased incidence of carcinoma.* High incidence of gastric atrophy and vitamin B 12 deficiency is also noted in these patients.* Has been explained in previous sessions.