Doctors at AIIMS Delhi successfully removed two extra lower limbs from a 17-year-old boy suffering from an incomplete parasitic twin condition. The surgery involved separating shared blood vessels and nerves.

The condition, known as an incomplete parasitic twin happens when an underdeveloped twin attaches to the host twin and survives by feeding off their body.

Doctors at Delhi AIIMS have successfully removed two 'parasitic legs' from a 17-year-old boy's abdomen, giving him a new lease of life.

In a rare and complex surgery, a team of doctors at the All India Institute of Medical Sciences (AIIMS) in Delhi separated a 15kg "parasitic twin" from a 17-year-old boy.

A parasitic twin is an underdeveloped conjoined twin that relies entirely on the host twin for survival. They are extremely rare, with less than one case occurring per 100,000 births. The teenager who had a fully developed extra set of limbs and a pelvis - sustained by a chest artery - underwent a two-hour surgery at Aiims hospital in Delhi.