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According to the WHO, every year lung cancer is detected in two million patients.
Stage 0 lung cancer is curable: malignant cells are present only in the lining of the lung. Patients with the “in situ” stage are assigned a wedge resection, in which the surgeon removes part of the affected tissue. The survival rate for stage zero cancer is 100%, and the likelihood of recurrence is minimal if the patient is regularly examined by a doctor.
The disease in the zero stage does not manifest itself in any way, and this is the main difficulty in diagnosing it at the very beginning.
The disease in the zero stage does not manifest itself in any way, and this is the main difficulty in diagnosing it at the very beginning. There are two categories: 1a and 1b, which differ in size. The survival rate for lung cancer of the first stage for 5 years is:
The survival rate in the first stage also depends on which age group the patient belongs to. Accordingly, the younger the patient, the higher his/her chances. However, each case is individual and is accompanied by many additional forces.
In the second stage of the development of the disease, the tumor becomes quite large. Pathology can damage the lymph nodes and affect respiratory tract. Of the general symptoms, heaviness during breathing, periodically increasing chest pain, hemoptysis and sputum are noted. At this stage, the tumor does not metastasize. Survival for 5 years looks like:
According to doctors, it’s noted that with stage 2, prognosis is much more comforting depending on gender: survival among women is usually higher.
The tumor affects the lymph nodes. In some cases, the pathology also affects neighboring lobes or the second lung. Malignant cells are present in the pleura, bronchus, and diaphragm. Survival ratio looks like:
It is almost impossible to surgically remove the formation at stage 3.
At the fourth stage, the tumor metastasizes to the liver, bone tissue, cerebrum, etc. The fourth stage is fatal. Life expectancy within one year is 15% among patients with metastases in one organ, and up to 5% for patients in whom metastases have affected several organs.
Some people live for several years with such a pathology form. This is achieved through immunotherapy, proton and CAR-T therapy.
One of the most dangerous is peripheral lung cancer. This pathology affects the eponymous parts of the respiratory system: the foci of the disease are located on the periphery. The tumor is formed from lung’s tissue. Survival is as follows:
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