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| | Title: | Diagnose Cancer | | Article: |
During the cancer diagnosis doctors look for the site of origin of the tumor and the type of cells. Cancers arise in any organ. The body site, where cancer develops first, is the primary site. The tumor spreads (metastasizes) then. Common cancers include skin, lungs, breasts, prostate, colon and uterine tumors. There are many signs and symptoms of cancer. Doctors may find tumors directly, by X-ray or MRI imaging, or through lab tests.
However, these signs and symptoms of cancer may mimic other diseases. Weight loss and abdominal pain may mean stomach cancer or an ulcer. Weight loss and swollen lymph nodes may mean lymphoma or AIDS or tuberculosis. Blood in urine is a sign of bladder or kidney cancer or a kidney infection. Blood in stool is a sign of many bowel problems, not just cancer. Benign looking skin mole may be deadly melanoma. Doctors often need a biopsy (microscopic check of tissues samples) to diagnose cancer. The cancer type is found by microscopic examination. If the type is different from surrounding tissue, the cancer came from another primary site. Metastases can spread directly or through blood vessels, and lymphatic vessels. Biopsy helps to find the primary site. Treatment also depends on the cancer cell type. Cells could be more or less differentiated and originate from different layers of the same organ. If the cancer cells resemble healthy, mature cells, they are differentiated. Undifferentiated cells look like very immature primitive cells. Checking the differentiation allows doctors to know how aggressive the cancer is. Grade one cancer is less aggressive than grade four usually.
Also doctors classify cancers by stage. Stage depends on the size and spreading of the tumor. Stage determines the mode of treatment - Whether it is surgical, radiation, chemotherapy and so on. RDoctor.com.
| | Author: | Aleksandr Kavokin, MD, PhD | | System: | Diagnosis | | Subject: | Cancer | | Abstract: | Common cancers include skin, lungs, breasts, prostate, colon and uterine tumors. | | Website: | http://www.rdoctor.com | | Time: | 11:34 | | Reference: | http://www.symptomat.com | | Reference 2: | http://www.kavokin.com |
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Articles by Aleksandr Kavokin, MD, PhD
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