. Clinical signs of lung cancer

Lung cancer (lung cancer is often called) is the most common type of cancer in men. Lung cancer is a malignant proliferation of bronchial epithelial cells. The cause of lung cancer, but so far it is not clear that smoking tobacco is the leading risk factor.
 
  Clinical symptoms of lung cancer are varied; change from no symptoms only discovered accidentally when an X-ray examination
to the clinical symptoms normally encountered in other respiratory diseases such as cough, shortness of breath, chest pain, wheezing slot until the symptoms suggestive of lung cancer much as coughing up blood, bone pain, weight loss depleted. The imaging tests including X-rays, CT scan to help locate lung lesions, biopsy tissue damage as pathology tests to help diagnose diseases sure. Lung cancer is a disease can not be cured unless the diagnosis and intervention at an early stage. For lung cancer, stage of disease progression than treatment primarily aims to relieve symptoms and improve quality of life and prolong survival. The treatment of lung cancer, it is best to avoid getting lung cancer by smoking cigarettes without smoke or have quit smoking, quit smoking if smoking is combined with monitoring of respiratory health check often regularly to detect and treat early lung cancer, if any.
Clinical signs of lung cancer:

Symptoms of lung cancer are varied and depending on the stage of disease progression, but the number of symptoms may be more or less.

Lung cancer is often the first stage have no symptoms at all: It is noticed to 5-15% of patients with lung cancer is detected at no clinical symptoms at all. These people were found to be entirely accidental shooting when X-ray checkup annually.

Lung cancer stage next progression of symptoms. The symptoms in this phase may include the following:

·          Ho: initial symptoms are most common. Most patients are ignoring symptoms, they said that cough is due to smoking (note that the majority of patients with lung cancer with smoking). Lung cancer can also occur even in patients with COPD and COPD patients would not think that cough due to lung cancer is the evidence that cough is due to COPD. So the point of cough in smokers, people with COPD suggests they can get lung cancer will change the nature cough cough more natural than usual, while a cough can longer, the number may be more talks, talks with pus or recurrent than in the past, may cough up blood square miles.

·          Coughing up blood: an important warning signs. Unlike simple cough, coughing up blood less likely to be ignored and patients often went to see a doctor right away with hemoptysis. Coughing up blood quite specific for lung cancer so when patients> 40 years old, smoking, coughing up blood again, it should go to a doctor to be appointed diagnostic bronchoscopy.

·          Shortness of breath: the symptoms appear later in the progression of lung cancer, but due to breathing difficulties appear slowly on older patients so often overlooked because of shortness of breath that this senile, by COPD. Shortness of breath occurs when the tumor was large as bronchial obstruction, a deflated lung area, or tumor invasion into the pleural pleural effusion do.

·          Chest pain: as well as symptoms suggestive of lung cancer, characteristics of chest pain in primary lung cancer is persistent chest pain, vague unknown location, then the more annoying chest pain, may misdiagnosed as intercostal neuralgia, myalgia, etc.

Lung cancer late stages, metastases usually have the following symptoms:

·          Lung cancer, mediastinal metastases: when the lung cancer cells invade the offices located in the mediastinum (the organ in the chest between the lungs). If the superior vena cava blood encroachment do not run on the heart, the patient may have dizziness, tinnitus, headache, pale in the face and upper chest. If being invasive aortic rupture can cause overflow aortic blood pleura and sudden death. If the reverse recurrent laryngeal nerve was left invasive, patients with vocal cord paralysis can cause hoarseness, voice sometimes. If diaphragmatic nerve is injured, the patient may have symptoms of hiccups, shortness of breath due to diaphragmatic paralysis. If the esophagus is damaged, patients may have difficulty swallowing, choking, choking swallow.

·          Lung cancer, pleural metastasis: is a common symptom, usually abundant pleural effusion, fluid reestablished quickly after tapping.

·          Lung cancer metastatic chest wall: forming tumors in the chest, causing intense pain.

·          Lung cancer lymph node metastasis: the nodes on the move, axillary lymph nodes may be swollen, hard, painless.

·          Lung cancer metastases distant organs: including agencies such as the adrenal glands, brain, liver, bone, skin.