Early stages of acute extrinsic allergic alveolitis usually are characterized by __________ radiodensities scattered bilaterally throughout the lung zones.

Question

Quizplus · Accepted Answer

Early stages of acute extrinsic allergic alveolitis are reversible and characterized by multiple radiodensities scattered bilaterally throughout the lung zones, usually measuring 1-3 mm in size. As the disease progresses, these radiodensities can become larger and more confluent, leading to fibrosis and irreversible damage to the lungs. Therefore, options C and D are incorrect. Option B is incorrect because radiodensities in early stages are usually multiple, not solitary.

Early Stages of Acute Extrinsic Allergic Alveolitis Usually Are Characterized