paciente de 69 años, tabaquista activa, consulta por hemoptisis sin otra

Investigation: For a 69-year-old active smoker presenting with hemoptysis without other associated symptoms, an urgent chest X-ray should be performed within 2 weeks to assess for possible lung cancer, given the significant risk factors of age over 40 years and current smoking status NICE NG12. This investigation aims to exclude or detect lung cancer or other pulmonary pathology NICE CKS,NICE NG12. Further investigations may include sputum analysis, bronchoscopy with bronchoalveolar lavage (BAL) for microbiological testing, especially if the chest X-ray shows abnormalities or if there is suspicion of infectious causes like pulmonary actinomycosis or lung abscesses Griffo et al. 2026,Wang et al. 2025. If initial investigations are inconclusive and suspicion remains, computed tomography (CT) of the thorax is appropriate to further evaluate pulmonary lesions NICE CKS,Griffo et al. 2026,Wang et al. 2025.

Additional baseline tests including full blood count, kidney and liver function tests, and inflammatory markers such as C-reactive protein may be performed to evaluate for infection or inflammation NICE CKS,NICE CKS. Spirometry and pulse oximetry can help assess lung function and oxygenation status, particularly if underlying COPD or other chronic lung disease is suspected NICE CKS,NICE CKS.

Management: If lung cancer is suspected based on history, imaging, or examination, referral according to the suspected cancer pathway should be initiated promptly NICE NG12. For confirmed lung infections such as pulmonary actinomycosis, prolonged antibiotic therapy with appropriate agents is essential, often guided by microbiological diagnosis; bronchoscopy with BAL and PCR testing has the highest diagnostic yield in these infections Griffo et al. 2026. Surgical intervention may be needed in advanced cases or complications, facilitating both diagnosis and treatment Griffo et al. 2026.

In cases where anaerobic bacterial lung abscesses, including those caused by pathogens such as Tannerella forsythia, are identified or suspected, antibiotic therapy covering anaerobic organisms (such as combination regimens including metronidazole and beta-lactam/beta-lactamase inhibitors) is effective and should be tailored based on microbiological findings Wang et al. 2025. These infections frequently associate with smoking and poor oral health, so dental assessment and management may be beneficial Wang et al. 2025.

If investigations suggest COPD or other chronic lung disease, offer smoking cessation support and appropriate inhaled therapies NICE CKS,NICE NG115. Referral to respiratory specialists is advised if diagnostic uncertainty persists or if complications arise NICE CKS.

Summary: The first-line investigation in this patient is an urgent chest X-ray to exclude lung cancer or other pathology NICE NG12. Depending on findings, a multidisciplinary approach involving bronchoscopy with BAL, CT imaging, microbiological analysis including PCR, and possibly surgical biopsy may be needed to establish diagnosis Griffo et al. 2026,Wang et al. 2025,Ülker et al. 2026. Management depends on the diagnosis but includes urgent referral for suspected cancer NICE NG12, prolonged targeted antibiotic therapy for infections such as pulmonary actinomycosis or anaerobic lung abscesses Griffo et al. 2026,Wang et al. 2025, and smoking cessation along with COPD management if indicated NICE CKS.