Is pulmonary fibrosis always caused by tuberculosis?

Written by An Yong Peng
Pulmonology
Updated on September 04, 2024
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Pulmonary fibrosis foci do not necessarily result from tuberculosis, although tuberculosis is a relatively common cause of such fibrosis. After tuberculosis is cured, pulmonary fibrosis foci may remain. However, in cases of general pulmonary inflammation, sometimes the lesion is not completely absorbed, which may also result in fibrosis. If the pulmonary fibrosis foci are a result of tuberculosis, there is a certain risk of recurrence. In such cases, measures should be taken to prevent recurrence, such as ensuring balanced nutrition and engaging in appropriate exercise to enhance one's resistance. These measures help prevent the recurrence of tuberculosis. Additionally, pulmonary fibrosis foci can also lead to changes in lung structure, making patients relatively more susceptible to respiratory infections. Therefore, for pulmonary fibrosis foci, it is also important to keep warm and prevent respiratory infections.

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Written by Han Shun Li
Pulmonology
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Is pulmonary tuberculous effusion contagious?

Pulmonary hydrotuberculosis is actually caused by infection with the tuberculous bacillus, which is commonly referred to as tuberculous pleurisy. Simple tuberculous pleurisy is not contagious, because the lesions are primarily within the pleural cavity, and the pleural cavity is not connected to the outside world. Therefore, simple pulmonary hydrotuberculosis is not contagious. However, if it is accompanied by pulmonary tuberculosis, and if the examination for pulmonary tuberculosis finds tuberculous bacillus in the sputum, then it is contagious in these cases.

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Written by Han Shun Li
Pulmonology
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Is pulmonary tuberculosis contagious?

The source of transmission for tuberculosis mainly comes from patients with active pulmonary tuberculosis, also known as bacterium-shedding patients. This is determined when tuberculosis bacteria are found in the patient's sputum. Tuberculous pleurisy, commonly referred to as tuberculous pleurisy, is not contagious. This is because the pleural effusion is confined within the pleural cavity, isolated from the external environment, and the chances of detecting tuberculosis bacteria in the pleural fluid are very low. Therefore, it is generally not contagious and there is no need for concern. The treatment duration for tuberculous pleurisy is longer than that for pulmonary tuberculosis, typically lasting 9 to 12 months. It is important to follow medical advice and complete the course of anti-tuberculosis treatment.

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Written by An Yong Peng
Pulmonology
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Does increased lung markings indicate tuberculosis?

Increased pulmonary markings are not an exclusive indicator of tuberculosis. The increase in pulmonary markings could be a sign of acute bronchitis or chronic pulmonary congestion. Additionally, although patients with bronchiectasis often show characteristics in a chest CT, it might only appear as increased pulmonary markings in a chest X-ray. Tuberculosis can present in various forms of lesions, often coexisting in multiple forms. Such forms may include infiltrative lesions, fibrous strip-like lesions, nodular lesions, or even lesions with calcification. For diagnosing tuberculosis, relying solely on chest X-rays or CT scans is sometimes insufficient. Further confirmation often requires additional tests such as sputum acid-fast staining and bronchoscopy.

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Written by Wang Xiang Yu
Pulmonology
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The difference between sarcoidosis and tuberculosis

Sarcoidosis and tuberculosis, although only differing by one character in Chinese, are completely different diseases. Sarcoidosis and tuberculosis share some similarities, such as their pathological changes often involving granulomas. However, in tuberculosis, the granulomas are typically caseating, while in sarcoidosis, they are non-caseating. Tuberculosis shows characteristic features under pathological examination, whereas the diagnosis of sarcoidosis is one of exclusion, requiring the ruling out of other various granulomatous diseases. Secondly, their causes are also different; tuberculosis has a very clear cause, being an infectious disease caused by the tuberculosis bacterium. Meanwhile, the cause of sarcoidosis has not been identified clearly and may be related to a variety of factors including genetics, environment, and chemicals, among others. Additionally, the clinical manifestations of both sarcoidosis and tuberculosis are not specific, and both diseases can present symptoms like coughing, expectoration, chest pain, hemoptysis, low or high fever, weight loss, and night sweats. Thus, it is quite difficult to differentiate between sarcoidosis and tuberculosis based on symptoms alone. Moreover, their treatments differ; sarcoidosis is mainly treated with corticosteroids, while the primary treatment for tuberculosis involves anti-tuberculosis therapy.

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Written by Xiong Hong Hai
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Tuberculosis is a bacterial infection that primarily affects the lungs but can also affect other parts of the body. It is caused by the bacterium Mycobacterium tuberculosis.

Tuberculosis is mainly due to the infection of the human body by tuberculosis bacteria, which proliferate massively within the body, destroying the tissues and organs, and producing some blood syndromes related to combined toxins. Symptoms such as low-grade fever, night sweats, blood-stained sputum, and afternoon feverishness are common, and weight loss is also a common occurrence. Different forms of tuberculosis have different clinical symptoms. Tuberculosis can be cured if it is identified early and treated promptly and properly with anti-tuberculosis therapy, allowing many to recover completely.