Related Experiment Video
Updated: Jun 18, 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
Hamman's syndrome associated with pharyngeal rupture occurring during childbirth
Hervé Tixier1, Christian Rattin, Alexis Dunand
1Department of Gynecology and Obstetrics, University of Dijon School of Medicine, Dijon, France.
Hamman's syndrome is the classical association of subcutaneous emphysema and pneumomediastinum, with or without pneumothorax. Its onset during the expulsive phase of childbirth is exceptional. We report here the first case associated with pharyngeal rupture at the level of the piriform sinus and describe the warning signs and the management by endoscopy.
Hamman's syndrome is the classical association of subcutaneous emphysema and pneumomediastinum, with or without pneumothorax. Its onset during the expulsive phase of childbirth is exceptional. We report here the first case associated with pharyngeal rupture at the level of the piriform sinus and describe the warning signs and the management by endoscopy.
Related Concept Videos
Esophageal Perforation-I: Introduction
The location of esophageal perforation can vary, occurring anywhere along the esophagus.
Hiatal Hernia
Hemorrhagic Stroke ll: Pathophysiology
Hemorrhagic Stroke l: Introduction
Esophageal Perforation-II: Clinical Manifestations and Management
Clinical Manifestations:
Flail Chest-I
Flail chest is a severe and potentially life-threatening condition characterized by the fracture of three or more adjacent ribs in multiple places. It is most commonly caused by direct impacts and trauma, such as motor vehicle accidents or injuries from a steering wheel impact. It can also occur due to falls in elderly individuals with osteoporosis, or assaults involving sharp objects.
Pathophysiology
The pathophysiology of flail chest is complex, involving fractures of...

