Chronic cough and Cobblestoning of the pharynx! - USMLE Forums
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Old 10-16-2011
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Lungs Chronic cough and Cobblestoning of the pharynx!

A 14 y/o boy came to see you for the evaluation of a chronic cough. He stated that his cough began 4 weeks ago and had continued since without change. There is no diurnal variation that he or his family had noticed. He denies wheezing or dyspnea. He had been treated with 2 courses of antibiotics for sinusitis without any effect. He had no past medical history. His height and weight are in the 75th percentile for his age and sex. His physical examination was notable only for minimal erythema and cobblestoning of his posterior pharynx. He had a dry ‘barking’ cough.
Which of the following is unlikely in the differential diagnosis of chronic cough in this teen?
Pertussis.
GERD.
Asthma.
Cystic fibrosis.
Postnasal drainage.
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Old 10-16-2011
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Cystic fibrosis is unlikely to be in D.D.
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Old 10-16-2011
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Cystic fibrosis
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cF ...he would have more and different symptoms
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Cystic fibrosis
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cystic fibrosis
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Gerd. ......
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Old 10-17-2011
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The correct answer is:
Cystic fibrosis.
All the others are the differential of chronic cough.
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