Which department should I go to for colon cancer examination

Colorectal cancer is a relatively difficult disease to treat so far, and it is very harmful to people's bodies. If the treatment is not thorough and timely, it may endanger life in severe cases. So which department should be checked for colorectal cancer? Colorectal cancer examinations need to be checked in the oncology department. The following is an introduction to the examination items.

1. Laboratory examination: routine blood test, complete biochemistry (liver and kidney function + serum iron), routine stool test + fecal occult blood test, etc., are helpful to understand whether the patient has iron deficiency anemia, liver and kidney function and other basic conditions. Testing for blood tumor marker carcinoembryonic antigen (CEA) is helpful for tumor diagnosis. In patients with colorectal cancer, high CEA levels do not mean that there is distant metastasis; in a few patients with metastatic tumors, CEA levels are not elevated.

2. Endoscopic examination: Colonoscopy is to insert a fiber colonoscope into the ileocecal region at the beginning of the colon to examine the colon and rectal cavity, and perform biopsy and treatment during the examination. Colonoscopy is more accurate than barium enema X-rays, especially for small colon polyps, which can be removed by colonoscopy and confirmed by pathology. Removal of benign polyps can prevent them from turning into colorectal cancer, and cancerous polyps can help clarify diagnosis and treatment.

3. Biopsy and exfoliative cytology: Biopsy is of decisive significance for the diagnosis of colorectal cancer, especially early cancer and polyp cancer, as well as for differential diagnosis of lesions. It can clarify the nature, histological type and malignancy of the tumor, judge the prognosis and guide clinical treatment. Exfoliative cytology has high accuracy, but the sampling is cumbersome, and it is not easy to obtain satisfactory specimens, so it is rarely used in clinical practice.