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Lung cancer, also known as lung carcinoma, is a malignant tumor that begins in the lung. Lung cancer is caused by genetic damage to the DNA of cells in the airways, often caused by cigarette smoking or inhaling damaging chemicals. Damaged airway cells gain the ability to multiply unchecked, causing the growth of a tumor.
It is often called a "collapsed lung", although that term may also refer to atelectasis. [1] A primary spontaneous pneumothorax is one that occurs without an apparent cause and in the absence of significant lung disease. [3] A secondary spontaneous pneumothorax occurs in the presence of existing lung disease.
Pneumothorax occurs when there is air trapped between the lung and the chest wall; this can leave the patient's lung unable to fully inflate ("collapsed lung"). A bronchopleural fistula is when there is a tube-like opening that allows air to escape. [9] Minimally invasive surgery is beneficial for patient outcome, with reduced risk of ...
Atelectasis is the partial collapse or closure of a lung resulting in reduced or absence in gas exchange. It is usually unilateral, affecting part or all of one lung. [2] It is a condition where the alveoli are deflated down to little or no volume, as distinct from pulmonary consolidation, in which they are filled with liquid.
Lung cancer can be classified into two main types: non-small cell lung cancer (NSCLC) and small cell lung cancer (SCLC). NSCLC, the most common of the two types, is a group of cancers including squamous cell carcinoma, adenocarcinoma and large cell carcinoma. [11] SCLC is highly aggressive and consists of small ovoid cells. [12]
Complications may include pulmonary hypertension, respiratory failure, pneumothorax, and lung cancer. [2] Causes include environmental pollution, certain medications, connective tissue diseases, infections, and interstitial lung diseases. [1] [3] [6] But in most cases the cause is unknown (idiopathic pulmonary fibrosis).
Image shows early occurrence of tracheal deviation. Tracheal deviation is a clinical sign that results from unequal intrathoracic pressure within the chest cavity.It is most commonly associated with traumatic pneumothorax, but can be caused by a number of both acute and chronic health issues, such as pneumonectomy, atelectasis, pleural effusion, fibrothorax (pleural fibrosis), or some cancers ...
Small-cell lung carcinoma (SCLC) has long been divided into two clinicopathological stages, termed limited stage (LS) and extensive stage (ES). [8] The stage is generally determined by the presence or absence of metastases, whether or not the tumor appears limited to the thorax, and whether or not the entire tumor burden within the chest can feasibly be encompassed within a single radiotherapy ...
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