True regarding CEA is 

  1. Low specificity
  2. Falls after 1 week of surgery to baseline
  3. Preoperative high value is good prognostic marker
  4. Follow up, first test of CEA in 8-10 days followed by weekly tests thereafter

Answer after Q 20

Poor Prognosis in colon polyp

Q) All are poor prognostic factors in colonic polyp except?

a) Poorly diff in the head

b) Moderately differentiated polyp

c)  Involving the stalk

d) Margins positive


Poor prognostic factors in a polyp aare

1. histologically  poorly  differentiated invasive  carcinoma

2. cancer  cells  observed  in  the lymphovascular  spaces,  there  is  a  more  than  a  10%.......... 

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