What does early cancer screening look like? Is it reliable? Where can it be done?

Early cancer screening is effective

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1. Blood test

Blood tests are an important means of detecting early cancer during physical examinations. By detecting whether various tumor marker indicators in the blood are elevated, various malignant tumors can be discovered and identified. For example: alpha-fetoprotein AFP can detect primary hepatocellular carcinoma and gonad embryonal tumors. When carcinoembryonic antigen CEA is significantly elevated, colon cancer, gastric cancer, lung cancer, and bile duct cancer are common; it is also elevated in liver cancer, breast cancer, ovarian cancer, and pancreatic cancer.

In 2013, Professor Luo Yongzhang’s research team from the Tumor Biology Laboratory of Tsinghua University discovered for the first time in the world that heat shock protein 90α is a brand-new tumor marker. The independently developed quantitative detection kit has been verified by clinical trials.

2. Pap smear in gynecological physical examination

Using Pap staining method, early cervical cancer can be detected, with a detection rate of about 60% to 70%.

3. B-ultrasound

Using color Doppler imaging technology, we can clearly detect whether there are masses and lesions in most organs throughout the body.

4. Look for thoracic tumors through indirect changes such as swelling, obstructive pneumonia, and pleural effusion.

5. Anorectal digital examination

It can roughly determine whether there are lesions and the nature of the lesions in the anus and rectum 7 cm to 10 cm from the anal verge.

6. Gastroscopy and colonoscopy

Directly observe the color, blood vessel texture, and gland opening shape of the gastric and intestinal mucosa with the naked eye to identify the presence of lesions. Suspicious lesions can be treated Biopsy confirmed the diagnosis.

7. PET-CT diagnosis

PET-CT perfectly integrates PET and CT. PET provides detailed functional and metabolic information of the lesion, while CT provides detailed information of the lesion. With precise anatomical positioning, one imaging can obtain tomographic images from all directions of the whole body. It has the characteristics of sensitivity, accuracy, specificity and precise positioning. It can understand the overall condition of the whole body at a glance and achieve the purpose of early detection of lesions and diagnosis of diseases.

8. Tumor marker screening

For example: Jianan Shuding. Monohydroxyphenol is one of the tumor markers. The high level of monohydroxyphenol is consistent with tumor screening. According to the parameters, tumor marker screening is generally a broad-spectrum method, which needs to be carried out according to the specific physical condition and symptoms, and has a certain probability.