The diagnosis of cancer can be divided into several levels: clinical diagnosis, diagnostic imaging and disease diagnosis, they continue to increase the accuracy between, which is actually determined by the clinical course of cancer.
Diagnosis of cancer and other diseases, like diagnosis, including etiology, where the body, secondary inspection. During the examination, to further focus on resolution of his systemic disease and colorectal disease has shown signs that may exist, and then by additional tests to confirm the diagnosis or rule out the diagnosis, blood tests such as the observed hemoglobin and platelet levels; the liver, renal function tests to determine whether there is a serious liver cirrhosis, renal dysfunction and other medical diseases; colonoscopy to determine whether there is colorectal cancer, the tumor site.
Supporting the process of checking the patient is also a fact confirmed process. Secondary inspection There are many ways, including ultrasound, X ray, CT examination, magnetic resonance (MRl) examination, a variety of endoscopy, such as endoscopy, colonoscopy and so on. Not every patient needs to do all of the above checks, but should be based on the needs of patients to make the necessary checks, then it will be able to get the correct diagnosis, but also can save money.
2. Pathologic diagnosis of cancer diagnosis and common disease of cancer is different from the diagnosis to patients and their families often cause great mental stress. Therefore, the diagnosis of cancer should be very careful, in addition to other clinical diagnosis, pathological diagnosis is necessary. Pathological diagnosis is usually has the following methods: conventional pathological diagnosis, rapid pathological diagnosis, cytological diagnosis.
1) conventional pathologic diagnosis of the process: This method is the specimen (surgical resection or biopsy of the tumor tissue) were soaked with formalin fixed, paraffin-embedded, alcohol dehydration, and then hematoxylin and eosin stained. After this treatment the future, they can be clearly observed under the microscope cell structure, distinguish between normal cells and cancer cells. This process takes about 3-5 days.
2) rapid pathological diagnosis technology: in clinical practice, routine pathological diagnosis is often not enough. To this end, resulting in a rapid pathological diagnosis. This technique commonly used rapid freezing technique, the specimen is rapidly frozen, then sliced staining. This process takes about 30 minutes.
Quick pathological diagnosis technology range: disease is surgery to determine whether the cancer. defining the scope of diseases and surgical resection is adequate. determine whether the transfer of suspicious tissue organization. Quick pathological diagnosis is the inadequacy of the requirements of this method is relatively high drawn, drawing must be accurate; production quality is less than the traditional paraffin section, so a certain rate of misdiagnosis.
3) Cytology Diagnosis: This is a simple, fast and economical diagnostic techniques. Method is to take a very small number of cells staining and observation, to determine whether the cancer cells, cancer cells can be confirmed if it is cancer.
This method is mainly used in cancer screening, treatment and follow-up tracking. Such as the use of sputum cytology is recognized in the heavy smokers lung cancer patients with nipple discharge smears to determine breast cancer. This method can complement the traditional pathological diagnosis.
Cytological diagnosis of deficiency is: cytology is limited in this diagnostic method has some misdiagnosis rate, and the consequences of misdiagnosis of cancer is very serious. in theory could lead to the spread of cancer, but in fact this possibility is very small, even non-existent. can not determine the specific type of tumor.