OBJECTIVE The purpose of this study was to evaluate the chest radiographic and CT findings of novel influenza A (H1N1) virus infection in children, the population that is more vulnerable to respiratory infection than adults. MATERIALS AND METHODS The study population comprised 410 children who were diagnosed with an H1N1 infection from August 24, 2009 to November 11, 2009 and underwent chest ...

Prolonged air leak is a common complication of pulmonary resection. However, while a bubbling chest drain is commonly related to parenchymal air leakage, it may also be caused by air entering the pleural cavity via an incomplete seal of the tissues at the chest tube insertion site. Examination alone is not sufficient to guide the surgeon as to which of the above complications is responsible for...

Pneumomediastinum is a clinical event characterized by the presence of air in the mediastinum. Often a result of physical trauma, this condition results from air escaping from the respiratory airway and moving into the mediastinal cavity. Although rare, it can also develop following abdominal laparoscopic surgical procedures. Diagnosis is commonly made by visualizing a radiolucent airline in th...

Pneumopericardium demonstrated by radiolucency within the pericardial space. Online Video 1 demonstrates this finding in motion. A 44-year-old man with prior Nissen fundoplication presented with chest pain, hypotension, tachycardia, and inferior ST-segment elevation on electrocardiography. Coronary angiography demonstrated normal coronaries, and left ventriculography revealed radiolucency in th...

background: although several studies have investigated the association between maternal exposure to air pollution and preterm birth, the results are inconsistent. the aim of this study was to further investigate the relation between maternal exposure to ambient air pollution during pregnancy and the risk of preterm birth and low birth weight (lbw) in an iranian pregnant population. materials an...

OBJECTIVE The objective of this study was to compare the air leak duration of two regulated chest tube modes following pulmonary lobectomy. METHODS This is a prospective randomized trial on 100 consecutive pulmonary lobectomies (2010-11) performed for lung cancer. A single 24-French chest tube was connected to an electronic system capable of maintaining the pleural pressure within preset valu...

Free air or gas in mediastinum is defined as pneumomediastinum. This is a rare condition which orginates from over distention of alveolus and alveolar rupture by barotrauma. A 6-year-old boy was admitted to our department with sudden onset, swelling of neck and face that developed during drinking water from tap by using his mouth. Physical examination revealed the presence of subcutaneous emphy...

pontaneous pneumomediastinum is an uncommon benign disease that mainly affects young, tall, and thin male patients without evidence of trauma or other underlying pulmonary disease. It is a condition caused by an increase of intrathoracic pressure and air leaking from the trachea, bronchi, alveoli, or esophagus into the mediastinum. Although it is often a self-limiting disease, it requires admis...

A 76-year-old man with chronic obstructive pulmonary disease presented with new swelling in the neck and face. Physical examination was notable for massive subcutaneous emphysema as the cause of the swelling, which extended from the patient’s trunk and neck onto his face (Picture A). A CT scan showed extensive subcutaneous emphysema throughout the neck and thorax as well as a pneumomediastinum ...

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