What color is the pulmonary effusion caused by lung cancer? Usually red

Doctors can judge the characteristics of the disease based on the color of lung cancer effusion. The color of lung cancer effusion is usually red, but during the treatment process, the pleural effusion may change from red to yellow.

There are many reasons for pulmonary edema, such as pulmonary hypertension, high blood pressure, liver disease, renal failure, chronic heart failure, etc. The manifestation of pulmonary edema varies in different diseases. So, what color is pulmonary edema caused by lung cancer?
Clinically, when lung cancer patients develop pleural effusion, doctors can preliminarily determine the cause by observing the color of the pleural effusion. If the pleural effusion is bloody, that is, red, it is likely caused by pleural metastasis of lung cancer cells, which usually indicates that the malignancy may be very high. In addition, as the treatment effect improves during treatment, the color of the pleural effusion may also turn yellow.
In advanced lung cancer, the fluid should be red. When this happens, patients may choose diuretics to help relieve symptoms. Albumin may also be given if it is associated with electrolyte imbalances. Once lung cancer has progressed to an advanced stage, chemotherapy is often considered. Chemotherapy is a systemic treatment that kills cancer cells and is also effective in treating lung cancer.
Cancerous pleural effusion is generally red, and if it turns yellow, it may be a certain degree of disease control during treatment. Regarding pleural effusion, normal people will also have a small amount of pleural effusion, and the production and absorption are balanced. The malignant pleural effusion produced by patients with tumors is highly absorbable, and the late-stage effusion is often red.