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Chronic Bronchitis vs. Emphysema: Key Differences%u2022Chronic Bronchitis: Inflammation and narrowing of bronchial tubes Definition %u2022Emphysema: Destruction of alveolar walls and enlargement of air spaces :%u2022Chronic Bronchitis: Productive cough, excess mucus production Primary Symptoms %u2022Emphysema: Breathlessness, reduced exercise tolerance :%u2022Chronic Bronchitis: Persistent, productive cough (lasting %u2265 3 months/year for 2 consecutive years) Cough Characteristics %u2022Emphysema: Typically dry cough, if present at all :%u2022Chronic Bronchitis: Increased sputum production Sputum Production: %u2022Emphysema: Minimal to no sputum production%u2022Chronic Bronchitis: Increased bronchovascular markings Chest X %u2022Emphysema: Hyperinflation, flattened diaphragm, increased lung lucency -ray Findings:%u2022Chronic Bronchitis: Airway inflammation and mucus hypersecretion Primary Pathophysiology: %u2022Emphysema: Loss of elastic recoil in lungs due to alveolar destruction%u2022Chronic Bronchitis: \Nickname %u2022Emphysema: \:%u2022Chronic Bronchitis: Often overweight Body Habitus: %u2022Emphysema: Often underweight