A 55-year-old man is admitted to the hospital with increasing shortness of breath and dry cough for the past few years. He smokes 1.5 packs of cigarettes and drinks about four bottles of beer a day. He is constantly “gasping for air” and now walks with difficulty because he becomes breathless after only a few steps. Prolonged expiration with wheezing is noted. Physical examination shows a barrel chest, hyperresonance on percussion, and clubbing of the digits. The patient’s face is puffy and red, and he has pitting edema of the legs. A chest X-ray discloses hyperinflation, flattening of the diaphragm, and increased retrosternal air space. Which of the following is the appropriate diagnosis?
A 55-year-old man is admitted to the hospital with increasing shortness of breath and dry cough for the past few years. He smokes 1.5 packs of cigarettes and drinks about four bottles of beer a day. He is constantly “gasping for air” and now walks with difficulty because he becomes breathless after only a few steps. Prolonged expiration with wheezing is noted. Physical examination shows a barrel chest, hyperresonance on percussion, and clubbing of the digits. The patient’s face is puffy and red, and he has pitting edema of the legs. A chest X-ray discloses hyperinflation, flattening of the diaphragm, and increased retrosternal air space. Which of the following is the appropriate diagnosis?
💡 Explanation
**Core Concept:** Pulmonary emphysema, also known as chronic obstructive pulmonary disease (COPD), is characterized by irreversible airflow limitation due to destruction of lung parenchyma and airways. It is caused by prolonged exposure to noxious particles or gases, especially cigarette smoke and air pollution.
**Why the Correct Answer is Right:** The correct diagnosis in this scenario is **D:** Chronic obstructive pulmonary disease (COPD). COPD is a progressive disease, which manifests as increasing shortness of breath, dry cough, and wheezing. The patient's history of smoking and alcohol consumption are significant risk factors for developing COPD. The physical examination findings, such as barrel chest, hyperresonance on percussion, clubbing, and pitting edema of legs, are indicative of a severe case of COPD. The chest X-ray findings of hyperinflation, flattened diaphragm, and increased retrosternal airspace support this diagnosis.
**Why Each Wrong Option is Incorrect:**
A. Emphysema is not the correct term for COPD. Emphysema specifically refers to the destruction of the lung tissue and air sacs (alveoli), whereas COPD encompasses emphysema and chronic bronchitis.
B. Chronic bronchitis is a component of COPD involving inflammation and thickening of the bronchial walls, but it does not account for the destruction of lung parenchyma and airways.
C. Interstitial lung disease (ILD) refers to disorders affecting the lung interstitium, which is not the focus of this question. ILD can have similar symptoms to COPD, but the chest X-ray findings are different.
**Clinical Pearl:** COPD is a preventable disease with early intervention and smoking cessation. Smoking cessation is the cornerstone of COPD treatment, and bronchodilators, corticosteroids, and supplemental oxygen may be prescribed based on disease severity.
✓ Correct Answer: C. Emphysema
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