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This question was answered on Wed 26, Mar 2008 05:27pm by Dr Dennis S, MD

COLORECTAL - Colorectal cancer: PET Scan say not metastasis and no evidence of lymph


    
Asked by okkie (Male ) on Wed 26, Mar 2008 02:45am

I have colorectal Cancer ,& it taken by operation 4 months ago took about 20 cm of the colon close to rectum . After operation it do PET SCAN the result there is still some and the join close to rectum.DR advice to do chemo & put Flourouracil 500 mg easy pump w interval # weeks do CHEMO . After 3 period we do PET SCAN ittells that NO Metastasys & no more evidence at Lymph . BUT it still must do some treatment. It is done for 6 X 3 weeks & the DR advice that it need do Radiotherapy for 30 times each day about 5 minutes . IT is nessasary to do Radiotherapy for this condition. Thank u for your cooperation. REGARDS, PAtient

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Answer by Dr Dennis S, MD  on Wed 26, Mar 2008 05:27pm:

Hi. What is the stage of your colorectal cancer? From what you posted, you are responding to your treatment as evidenced by disappearance of the metastasis and involved lymph node seen on PET scan. You should continue with your adjuvant chemotherapy using 5-fluorouracil. Anatomically, the rectum is different from the colon. The rectum can be divided into 3 segments: lower rectum, mid rectum, upper rectum. A portion of the upper rectum, as well as the other segments, do not have a peritoneal cover. This lack of peritoneal cover makes the part at higher risk of local recurrence after surgery of cancer. Radiotherapy is added to chemotherapy to reduce the risk of local recurrence.

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