The following are multiple choice questions (with answers) about medical knowledge.   **Question:** A 61-year-old woman presents to an outpatient clinic with fatigue and mild neck pain for a month. She adds that she is having difficulty swallowing. She denies trouble with her breathing but endorses 5–10 lb of unintentional weight loss over the past few months. On physical exam, the patient’s fingernails appear flat and mild conjunctival pallor is noted. An upper barium esophagram shows an upper esophageal web. A complete blood count reveals: Hb% 10 gm/dL Total count (WBC) 11,000 /mm3 Differential count: Neutrophile 70% Lymphocytes 25% Monocytes 5% ESR 10 mm/hr What is the most likely diagnosis?   (A) Plummer-Vinson syndrome   (B) Esophageal squamous cell carcinoma   (C) Zenker’s diverticulum   (D) Achalasia
['(A) Plummer-Vinson syndrome <> answer', 'The following are multiple choice questions (with answers) about medical knowledge. <> instruction', '(A) Plummer-Vinson syndrome \n (B) Esophageal squamous cell carcinoma \n (C) Zenker’s diverticulum \n (D) Achalasia <> possible answers', '  A 61-year-old woman presents to an outpatient clinic with fatigue and mild neck pain for a month. She adds that she is having difficulty swallowing. She denies trouble with her breathing but endorses 5–10 lb of unintentional weight loss over the past few months. On physical exam, the patient’s fingernails appear flat and mild conjunctival pallor is noted. An upper barium esophagram shows an upper esophageal web. A complete blood count reveals:\nHb% 10 gm/dL\nTotal count (WBC) 11,000 /mm3\nDifferential count:\nNeutrophile 70%\nLymphocytes 25%\nMonocytes 5%\nESR 10 mm/hr\nWhat is the most likely diagnosis? <> context@']