How to Read a Pneumothorax X-ray

Written by Li Hu Chen
Imaging Center
Updated on May 26, 2025
00:00
00:00

Pneumothorax has typical manifestations on a chest X-ray. Normally, the pulmonary markings on both sides are quite clear and visible. However, when a pneumothorax occurs, the part of the lung tissue with these markings tends to be compressed due to the accumulation of a large amount of gas in the surrounding pleural cavity, pushing the lung to contract towards the center. Around the periphery, these lung margins, which are outside the lung, meaning inside the pleural cavity, display the gas as very uniform and fine, without any markings. This is because it is pure gas, simply air, hence it is impossible for it to have markings. There is a particularly distinct demarcation line, a thin line, between this part of the pleural cavity and the lungs. Through these features, one can determine the presence of a pneumothorax.

Other Voices

doctor image
home-news-image
Written by Han Shun Li
Pulmonology
54sec home-news-image

Are the symptoms of pneumothorax severe?

Pneumothorax is caused by a rupture of the pleura, allowing air to enter the pleural cavity. The severity of symptoms after suffering from pneumothorax can vary, with common symptoms including coughing, chest pain, chest tightness, and difficulty breathing. The severity of symptoms largely depends on the amount of air in the pleural space. If the amount of air is small, symptoms might not be noticeable. However, with a larger amount of air, difficulty breathing can be quite severe. In cases of tension pneumothorax, the symptoms can be extremely severe and may even lead to respiratory and circulatory failure in a short period. Patients often experience significant chest tightness, restlessness, dry skin, heavy sweating, and may even lose consciousness. Immediate treatment is necessary, as there could be a risk to life.

doctor image
home-news-image
Written by Zhang Zhi Gong
Cardiothoracic Surgery
1min 33sec home-news-image

How many days does it take for a pneumothorax to heal?

The healing time for a patient with pneumothorax, or how many days it takes to heal, mainly depends on when the rupture on the lung heals. In younger patients who have good elasticity and strong healing capabilities, and whose nutrition keeps up, pneumothorax tends to heal relatively easily. Especially in younger patients experiencing pneumothorax for the first time, 70-80% may heal within two to three days because the gas escapes very quickly. Once the surface rupture on the lung heals, it can be cleared within a day, leading to healing. However, if the patient is older and also has conditions like tuberculosis or chronic bronchitis, the elasticity of the lungs is poorer, making healing difficult. Like a balloon without elasticity, if it gets a rupture, it may continue to expand, complicating the prediction of healing time. Regardless of age, whether the patient is young or old, if pneumothorax recurs a second time, it is advisable to seek aggressive treatment. Patients who have experienced pneumothorax twice are at more than a 70% to 80% risk of a third occurrence. This indicates a weak spot on the lung surface, similar to a wound on the hand. If a hand wound does not heal in a few days, it can be sutured. The same applies to lung surface wounds; as it is located inside the chest cavity, a thoracoscope is needed for suturing. Thus, in normal circumstances, pneumothorax could heal in a few days, but if repeatedly delayed, aggressive treatment might be necessary.

doctor image
home-news-image
Written by Han Shun Li
Pulmonology
45sec home-news-image

Spontaneous pneumothorax and the difference between pneumothorax.

Simply put, spontaneous pneumothorax is a type of pneumothorax. In the classification of pneumothorax, besides spontaneous pneumothorax, there are also traumatic pneumothorax and iatrogenic pneumothorax. Traumatic pneumothorax is caused by direct or indirect injury to the chest wall, while iatrogenic pneumothorax occurs during medical diagnosis and treatment. Spontaneous pneumothorax often involves underlying lung diseases, such as emphysema, lung bullae, tuberculosis, lung cancer, and pneumoconiosis. It can also occur in healthy individuals without obvious lung abnormalities, typically seen in tall, thin males of young to middle age.

doctor image
home-news-image
Written by Han Shun Li
Pulmonology
45sec home-news-image

What position should be taken for pneumothorax?

Pneumothorax occurs when the pleura ruptures and gas enters the pleural cavity, often compressing the lung tissue. Patients may experience symptoms such as chest pain, chest tightness, and coughing. The choice of lying position for patients with pneumothorax depends on the severity of the pneumothorax and the degree of chest tightness. If the pneumothorax is mild and the symptoms are not obvious, the patient can lie flat. If there is significant chest tightness, a semi-recumbent position may be adopted. If the chest tightness is severe and the patient has significant difficulty breathing, they often assume a sitting position, frequently struggling to breathe, sweating profusely, and may even experience respiratory failure, requiring immediate attention.

doctor image
home-news-image
Written by Li Jie
Orthopedics
1min 37sec home-news-image

How to treat rib fracture and pneumothorax?

After a rib fracture, if a pneumothorax occurs, it is a very serious complication. There are three types of pneumothorax: closed pneumothorax, open pneumothorax, and tension pneumothorax. The simplest is the closed pneumothorax. If the area of lung compression in a closed pneumothorax is less than 30%, there is a hope for self-healing, and generally no special treatment is needed; if the lung compression exceeds 30%, it might be necessary to place a closed thoracic drainage tube to drain the air accumulating in the chest cavity, which may need to stay in the chest cavity for about a week. This is the treatment for a closed pneumothorax. If it is an open pneumothorax, it means there is an open wound on the chest. The treatment principle is to convert the open pneumothorax to a closed pneumothorax, which means sealing the wound, turning it into a closed pneumothorax, and then taking x-rays to assess the degree of lung compression. If the compression is significant, closed thoracic drainage is still necessary; if the compression is less severe, observation can continue. For a tension pneumothorax, it is the most severe type of pneumothorax and must be taken very seriously. Emergency placement of a closed thoracic drainage is recommended and must be handled promptly, as it could pose a life-threatening risk. In summary, once a pneumothorax occurs following rib fractures, it must be taken seriously. It is necessary to go to the hospital's thoracic surgery or orthopedic department for formal and timely treatment to prevent potentially severe consequences.