A 28-year-old male presents with progressive shortness of breath and fatigue over the past few weeks. He reports a persistent dry cough, low-grade fever, and weight loss. On examination, there are fine inspiratory crackles at the lung bases, and clubbing of fingers is noted. Chest X-ray shows bilateral reticulonodular opacities. HRCT reveals a “honeycombing” pattern with traction bronchiectasis. He has no history of smoking but mentions working in a pottery factory for the last 5 years.
What is your differential diagnosis, and how would you confirm the underlying cause? Could this be an occupational lung disease? How would you approach treatment?