Related Experiment Video
Updated: Sep 25, 2026

Protocol and Guidelines for Point-of-Care Lung Ultrasound in Diagnosing Neonatal Pulmonary Diseases Based on International Expert Consensus
Published on: March 6, 2019
Unilateral hyperlucent lung with decreased vascular markings (Swyer-James syndrome)
Abstract:
When diagnosing unilateral hyperlucency on a X-ray picture one of the possible underlying conditions is the Swyer-James Syndrome. It consists principally of hyperlucency, diminished size, deficient blood supply, decreased ventilation, and bronchiectasis of the affected lung. Frequently a preceding pneumonia, caused by adenovirus, seems to be of aetiological importance. A yound patient, in whom the Swyer-James Syndrome was diagnosed on clinical, radiological, angiographical and ventilatory symptoms, suffered from pneumonia shortly before. This pneumonia was probably caused by adenovirus type 7, as appears from this virus being isolated from the faeces at that time. Treatment of this condition consists of antibiotics, mucolytics, bronch-spasmolytis, and physiotherapy. Surgery is rarely indicated.
Related Concept Videos
Pulmonary Hypertension: Classification and Pathogenesis
There are various classifications for PH, each relating to different underlying causes and also...
Gross Anatomy of the Lungs
Pleura of the Lungs
Pneumothorax II: Pathophysiology
Atelectasis II: Pathophysiology
Pulmonary Edema II: Pathophysiology

