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Updated: Aug 14, 2026

International Expert Consensus and Recommendations for Neonatal Pneumothorax Ultrasound Diagnosis and Ultrasound-guided Thoracentesis Procedure
Published on: March 12, 2020
Unilateral pulmonary oedema following re-expansion of pneumothorax
Abstract:
Unilateral pulmonary oedema is a rare complication in the routine management of spontaneous pneumothorax. Previous reports have emphasized excessive negative intrapleural pressure, rapid re-expansion of the lungs and bronchial obstruction as major factors in the pathogenesis. We have encountered four cases, and at least one of these factors have been absent in each case. Review of the literature, and our own experience suggests that the major factor is chronic and total lung collapse resulting in hypoxia and increased alveolar-capillary membrane permeability. Other factors which may be contributory are discussed.
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Pleural Effusion II: Symptoms and Management
A pleural effusion is the abnormal collection of fluid between the parietal and visceral pleura layers of tissue that form the lining of the lungs and chest cavity. It can occur independently or due to surrounding parenchymal diseases, such as infection, malignancy, or inflammatory conditions.
Clinical Manifestations:
Pneumothorax-I
Pneumothorax can be even further classified as spontaneous, traumatic, and tension pneumothorax.
Pneumothorax-II
Clinical Manifestations:
Pneumothorax II: Pathophysiology
Atelectasis II: Pathophysiology
Pulmonary Edema II: Pathophysiology

