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abstractpubmed· Abstract 2018· item PMID:30044749

An Unexpected Endobronchial Mass Appearing During Bronchoscopy. A 60-year-old man was admitted to the hospital with productive cough and yellowish sputum, severe fatigue, and weight loss of 4 kg over the past month; furthermore, he reported a slowly progressive shortness of breath on exertion over the past 6 months. Before admission, he received ampicillin/sulbactam (750 mg) orally twice daily for 7 days without significant clinical improvement.