What are the signs of lung cancer

Clinical picture common to all forms of lung cancer

The primary symptoms of lung cancer include coughing, shortness of breath, chest pain, and the release of blood from sputum. These symptoms are directly caused by the presence of cancerous tissue in the lungs. Secondary symptoms are called, arising due to concomitant disease complications.
The secondary symptoms include weakness, loss of appetite. They are caused by metastasis, invasion of the adjacent organs and various inflammatory processes.
A frequent concomitant symptom of pulmonary cancer is hypertrophic osteoarthropathy. It includes pain in the joints, swelling of tissues in the knees and ankle. This syndrome in lung cancer appears as a consequence of increased levels of the hormone estrogen.
Due to elevated estrogen levels, an increase in the mammary glands in men suffering from lung cancer is also observed. Often, hypertrophic ostaoarthropathy appears long before the appearance of the main signs of lung cancer.
As a rule, a lung tumor begins to manifest itself only 2 years after its inception.

Lung cancer types and signs

In central lung cancer, patients complain of cough, hemoptysis, shortness of breath, chest pain, fever, increased sweating, weakness in the body. Cough is one of the earliest signs of tumor development. First it is dry. After some time, mucus sputum appears, sometimes with blood impurities.

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