TRAP sequence

Vascular anastomoses in TRAP sequence – vessel on surface of placenta
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<!--[if !vml]--><!--[endif]-->	Arterial-Arterial anastomosis on the surface of the placenta
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<!--[if !vml]--><!--[endif]-->	Vein-Vein anastomosis on the           surface of the placenta.
<!--[if !vml]--><!--[endif]-->	Arterial aneurysm on surface of placenta
Vascular anastomoses in TRAP sequence -  the single umbilical artery of the acardiac twin connects directly with the umbilical cord of the pump twin
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