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[|Human|] My father is having a small lymph node in his presacral region after CT Scan report  doctor is suggested for biopsy test. His age is 51 with no medical history all the blood reports any sonography reports seems to be normal. Ho much chance is there that he may be infected from cancer
[|AI|]  Hi, Thanks for writing in. Lymphnodes are present in most locations of the body and are a part of the immune system. These generate antibodies and increase host defenses during illness. Cancer also causes lymph nodes to enlarge and often a single lymph node requires to be evaluated by biopsy to make sure it is not a sign of cancer. Lymphnode can also be enlarged due to infections in the region. A sacral area lymph node might be seen due to bowel infection or any condition causing inflammation of adjacent structures. It is suggested that your father gets a cancer screening done with sacral lymph node biopsy as recommended by his doctor. Please do not worry.