A 60-year-old male presents with a 4-month history of chronic cough and intermittent episodes of hemoptysis (blood in sputum). He also complains of weight loss, fatigue, and night sweats. He has a 35-pack-year smoking history and works as a stone quarry laborer. There is no history of recent infections or anticoagulant use.
what can be the differential diagnosis and how will you manage this patient.