Abstract Objective: To discussed the ethical aspects, the technique, optimal timing and the possible outcome of selective termination in anoma¬lous twin pregnancy. Case description: A 28-year old primigravida, 21 weeks twin gesta¬tion, with giant hygroma coli in one fetus. The normal fetus was com¬pressed by the anomalous fetus with oligohydramnios. The parent decided to undergo select…