How was celebrity cancer discovered?

Answer 1

There were several ways to detect cancer in celebrities:
1. Regular physical examination:
- For lung cancer, for example, Liu Qian found lung nodes through low-dose lung CT examination, which benefited from his usual physical examination. Because early lung nodes had no symptoms, low-dose lung CT could effectively detect early lung cancer, and when ordinary chest X-ray examination found lung cancer, it often missed the best treatment period.
- For stomach cancer, people with a family history of stomach cancer, alcoholism, irregular diet, and people who like to eat pickled, smoked, and spicy food, having a laparoscopy once a year can help detect early stomach cancer.
- For people over the age of 50 who have a family history of intestinal cancer, like to eat a high-fat diet for a long time, lack fresh fruits and vegetables in their diet for a long time, and have a colonoscopy once a year, they can detect intestinal cancer early.
- For liver cancer, gallbladder cancer, kidney cancer, and so on, abdominal CT could detect them early.
- For women, breast mammography examination was performed every year for those over 40 years old, and breast ultrasound examination for those under 40 years old could detect breast cancer early. Gynecological examination, cervical TCT, and cervical cancer could be detected early. For men over 50 years old, they should have a prostate-specific protein test every year. If abnormalities were found, they could further perform ultrasound or magnetic resonance examination of the prostates to detect prostate-cancer.
2. Examination after symptoms:
- When there were some suspicious symptoms in the body, a targeted examination might be carried out. For example, the Korean actor Kim Yoo-bin was diagnosed with symptoms related to NPC. There were many methods to diagnose tumors.
- X-ray examination uses the difference in density and thickness of the tissue structure of various parts of the human body. When X-rays penetrate the human body, they are absorbed to different degrees, forming different contrast images on film or screen, which plays an auxiliary role in the diagnosis of tumors.
- CT scan was an X-ray scan of the human body. After the data was collected, it was converted into numbers and reconstructed. It could be used for initial diagnosis, grading, prognosis evaluation, and so on.
- Magnetic resonance imaging (MRI), by applying a specific frequency of radio frequency pulse to the human body in the static magnetic field, it triggered the hydrogen neutrons in the body to produce magnetic resonance. After stopping the pulse, the neutrons produced an MR signal, which was further received, spatial coding, and image reconstruction. It could be used for any multi-planar and multi-directional imaging, especially for the diagnosis of head and neck tumors.
- The ultrasound examination used ultrasound to transmit through objects and touch the plane formed by two tissues of the human body to produce echo imaging. It could see the size, shape, and internal structure of the disease, and make a preliminary judgment on the nature of the disease and its involvement. However, sound waves could not pass through certain parts of the body such as the lungs and bones, so the scope of use was limited.
- Nuclear medicine examinations, such as PET/CT, would label the essential substances of life metabolism with radioactive nuclear elements and inject them into the human body. When the metabolism of cancer tissues was vigorous, more markers would gather, and cancer would be discovered.
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