Classification

Question 1

Classify tumor antigen

Answer 1

1.Tumor specific antigen tsa
2. Tumor associated antigen taa

Question 2

Subtypes of tumor associated antigen

Answer 2

1. Oncofetal ag- a. Fetoprotein
   b. CEA
2. NON oncofetal ag-
   a. Ca 125, CA 19-9 , PSA

Question 3

CEA

Answer 3

Normally found in fetal gut, liver, pancreas, normal sera

Increased in carcinoma of colon,
Pancreas, breast and liver

Question 4

Afp

Answer 4

Normally found in fetal liver
Normal sera

Increased in hepatoma pts