Lungs

a. Stridor? Infection, crouplike viral illness.

b. Epiglottitis? Rare after Haemophilus influenza type b vaccine.

c. Congenital abnormality? Subglottic hemangioma laryn-geal cysts, vocal cord paralysis.

d. Rhonchi? Inflammation in proximal airway with infections or irritants.

e. Crackles? Pneumonia, pulmonary edema, interstitial lung disease, congestive heart failure.

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