cancer lungs: 7

The symptoms of lung cancer depends on the type, location and how its spread:

Usually the main symptoms are persistent cough. Patients who suffer from chronic bronchitis, lung cancer often realize that the cough gets worse.

Sputum may contain blood. If the cancer grows into the blood vessels underneath, can cause bleeding.

Cancer can cause wheezing sound due to a narrowing of the airways in or around the growth of cancer. Bronchial obstruction can cause the collapse of the lung which is the branching of the bronchi, a condition called atelectasis. Another result is a form of pneumonia with symptoms of cough, fever, chest pain and shortness of breath.

If the tumor grows into the chest wall, can cause persistent chest pain.

Symptoms that occur later are loss of appetite, weight loss and weakness. Lung cancer often leads to accumulation of fluid around the lungs (pleural effusion), so that the patient experienced shortness of breath. If the cancer spreads in the lungs, shortness of breath can occur great, blood oxygen levels are low and heart failure.

Cancer can grow into certain nerves in the neck, results in Horner syndrome, which consists of:
- Eyelid closure
- Small pupils
- Eyes sunken
- Reduced perspiration on one side of the face.

Cancer at the top of the lungs can grow into the nerves to the arms so that the arm pain, numbness and weakness. Damage can also occur in the nerve cords so that the patient's voice becomes hoarse.

Cancer can grow directly into the esophagus, or grew up in near his throat and squeezed, resulting in swallowing disorders. Sometimes formed abnormal channels (fistulas) between the esophagus and bronchi, causing great cough during swallowing process took place, because food and liquid into the lungs.

Lung cancer may grow into the heart and causes:
- An abnormal heart rhythm
- Enlargement of the heart
- Accumulation of fluid in the pericardial sack.

Cancer also can grow around the superior vena cava. This venous obstruction causes blood to flow back to the top, the other into the veins of the upper body:
 vein in the chest wall will enlarge
 face, neck and upper chest wall (including breast) will swell and look dark purple.

This condition also causes shortness of breath, headache, vision disturbances, dizziness and drowsiness. Symptoms usually get worse if the patient bend forward or lie down.