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Lung cancer is the most diagnosed and deadliest cancer worldwide, with 2.2 million cases in 2020 resulting in 1.8 million deaths. [3] Lung cancer is rare in those younger than 40; the average age at diagnosis is 70 years, and the average age at death 72. [2] Incidence and outcomes vary widely across the world, depending on patterns of tobacco use.
However, lung cancer that is advanced will cause patients to experience additional signs and symptoms secondary to the cancer spreading to other organ systems. [5] In order of highest frequency, the most common signs of lung cancer include: [6] cough that does not go away or gets worse; weight loss; dyspnea (shortness of breath or difficulty ...
In people with cancer, cachexia is diagnosed from unintended weight loss of more than 5%. For cancer patients with a body mass index of less than 20 kg/m 2, cachexia is diagnosed after the unintended weight loss of more than 2%. [13] Additionally, it can be diagnosed through sarcopenia, or loss of skeletal muscle mass. [13]
Experts say that recent, unexplained weight loss is a "well-known phenomenon" associated with cancer. But other health conditions can cause weight loss as well.
Other features may include weight loss, fever, night sweats, poor appetite, vomiting, constipation, and umbilical hernia. [16] If the cancer has spread beyond the mesothelium to other parts of the body, symptoms may include pain, trouble swallowing, or swelling of the neck or face.
Lung tumor; A chest X-ray showing a tumor in the lung (marked by arrow) Specialty: Oncology Pulmonology: Symptoms: Coughing (including coughing up blood), weight loss, shortness of breath, chest pains [1] Complications: Lung cancer: Causes: Smoking Radon gas Asbestos Air pollution Genetics