Posts

Showing posts with the label Lung CT

When Hemoptysis Is Not Tuberculosis: A Radiology Case of Pulmonary Paragonimiasis Mimicking Cavitary Lung Disease

Image
  How Chest CT, Bronchoalveolar Lavage, and AI-Assisted Imaging Revealed an Overlooked Parasitic Infection Hemoptysis Is Not Always Tuberculosis In many countries, chronic hemoptysis immediately raises suspicion for pulmonary tuberculosis. A patient presenting with months of blood-tinged sputum, cavitary pulmonary lesions, and a positive tuberculin skin test often begins empirical anti-tuberculosis therapy before a definitive diagnosis is established. However, radiologists know that cavitary lung lesions represent one of the broadest and most challenging differential diagnoses in thoracic imaging. Infection, malignancy, autoimmune disease, septic emboli, fungal disease, congenital disorders, and parasitic infections may all produce remarkably similar CT findings. Among these conditions, pulmonary paragonimiasis remains one of the most frequently overlooked diseases, particularly in non-endemic countries. Increasing international migration, global travel, and changing dietary habit...