To say twin discordance the difference in the two twin's weight should be:: (A) 15% with the larger twin as index, (B) 15% with the smaller twin as index, (C) 20% with the larger twin as index, (D) 25% with the smaller twin as index
Answer is C. Discordant twins: The donor twin should be > 20% smaller in weight than the recipient twin Abdominal circumference difference of >15%