True regarding carcino embroyonic antigen are A/E-: (A) Is a glycoprotein, (B) Helps in knowing recurrence after resection, (C) Increases in Ca colon associated with only liver metastasis, (D) Usually associated with malignancies of GI tract
Answer is C. Ans. is 'c' i.e., Increase in Carcinoma colon associated with only liver metastasis o Carcino embryonic antigen elevation occurs in about 70% of patients of colon carcinoma. It has got no relation with hepatic metastasis.