Instituto de Diagnostico por Imagen, Hospital General de Acapulco, Mexico

This is a 18-year-old-primigravida that presented in our unit with a twin-to-twin transfusion. The case resulted in fetal demise of the recipient twin.

Note the typical image with the "stuck-twin" and the recipient twin (dead) floating in the amniotic fluid

Cardiac frequency of the "stuck" twin and the Doppler of the umbilical artery

3D view showing the twins. The donor twin is the one close to the uterine wall.

Note the severe polyhydramnios (52,2cm)

The donor twin