Tuesday, June 11, 2013

Why Lung Cancer Patients Showed Normal Chest X-Ray

Chest of lung cancer 10 months ago showed normal entirely possible, experts say

The vast majority of patients with advanced lung cancer 10 months ago should have lung tumor
For this case, Qingsheng director believes that the vast majority of patients with advanced lung cancer, for example, 10 months ago (that is, the physical examination), the lungs should be a lump, of course, does not rule out a few examples. Criteria of this case, it should be divided into two cases: if this chest X-ray showed the other doctors saw that the film is abnormal, the medical center will have to bear the responsibility of missed delay treatment; chest after all the doctors to see if this is consistent indicates that no abnormality was found from the film, medical centers do not need to take responsibility, which is the key point.

"Anteroposterior chest film" did not find entirely possible lung tumor

But medicine is particular about the evidence, found the chest to the conclusion lung cancer; such as tumors in the chest X-ray did not show that it can not rule out the possibility of lung cancer, took less than a chest X-ray analysis of the tumor following three reasons: First, lung relatively small portion of the mass. Lung tumor diameter of less than 0.5 or even 1 cm are likely not from the point of view chest X-ray, which is the limitation of chest itself. The second, more subtle parts of tumor growth. In general, long-mass surrounding the lungs more easily detected, close to the heart, spine, etc. hilar mass susceptible to these organs blocked and missed. Events mentioned in the examination results are "anteroposterior chest film showed no abnormalities," where "anteroposterior chest piece" is more close to the heart, spine, hilar, mediastinal mass, etc. lungs provides an opportunity missed. Third, the lung mass density is relatively low, easily confused with normal tissue.

For normal healthy people everyday, ordinary chest X-ray, such as, screening for lung disease still plays a very special, very important role.

Patients with lung cancer can be found in "clues" from life

Central lung cancer clues persistent cough or hemoptysis
Lung cancer can be divided into central and peripheral, central lung cancer symptoms are obvious, mainly for persistent cough and hemoptysis. This is because the site of tumor growth in patients with bronchial close, with the volume of growing up, like falling into a bronchus in a "grain of rice" enough to stimulate the patient's bronchial tubes, causing "persistent cough", which is a typical symptoms; until this "grain" continue to grow resulting in capillary damage, there may be a small amount of bleeding, often mixed with phlegm together, the "bloody sputum," which is another more typical symptoms.

Traces back pain dizziness peripheral lung cancer to be careful

If the tumor growth area around the lungs, are peripheral lung, pleura and bronchial away, even if the tumor grows to a diameter of 2 cm, or 3 cm, most do not have any symptoms until the cancer metastasis, this time is often caused when the alert has been found to late. Therefore, where the tumor is easy to shift, is the key to find its traces.

Lung lesion itself easily transferred to the brain, bones, liver, adrenal glands and other parts, because many patients are diagnosed with lung cancer than was discovered in uncomfortable positions. For example, some patients were headache, ataxia, dizziness, sudden fall, sent to hospital for brain CT, found that there are multiple brain tumors, this happens more often as "metastasis", which transferred from elsewhere, then One investigation found that lung cancer is caused by the transfer. There are some patients because of low back pain for no reason, medical treatment of lung cancer occurred after the discovery of "bone metastasis" due. Such cases are more common in clinical practice. There are a few cases of lung cancer, because tumors secrete hormones, patients showed bone and joint pain, clubbing, Cushing's syndrome and other "pulmonary symptoms," If suddenly these "extra-pulmonary symptoms" may be wary of lung cancer.

Clever use of chest X-ray to check this road project

Chest X-ray screening for lung cancer two points Tricks
First, the chest is superior to chest. Examination of the chest X-ray examination and chest X-ray chest, chest prevalent in the entry examination, and chest X-ray taken more common in daily physical examination, chest X-ray can be left at the end to save because if you happen to be the entry examination, and more concerned about the lungs case, we recommend their own money to put into a chest X-ray chest, chest X-ray can hold more consultation after several medical professionals, in order to avoid misdiagnosis.
Second, a chest radiograph is more insurance. Because the tumor site is easy to hide in the side of the spine, heart side, near the hilum, anteroposterior chest in shooting films, offered to take a chest radiograph.
Chest like a survival rate of lung cancer patients, "frosted" higher

In addition, different lung cancer patients, the length of life, but also because of the type of cancer after diagnosis varies. Yang shared tips on a clinically: Some alveolar cell carcinoma (a type of adenocarcinoma) lesions in the patient's chest looks like a "ground glass", as the film kept a layer of fog, chest of this situation tablets in patients whose cancer cells in vivo can be little change in 2,3 years. The patients who belong to small cell carcinoma, and its rapid growth and division of cancer cells, diffusion transfer relatively early, this type of lung cancer accounts for about 15-20% of the total, the majority of lung cancer as "non-small cell lung cancer" (including squamous cell carcinoma , adenocarcinoma, large cell carcinoma), small cell carcinoma compared with its slow growth and division of cancer cells, diffusion transfer relatively late. Therefore chest like "ground glass" higher survival rates for lung cancer patients.

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