In a bizarre case, a baby girl was born with her own twin sister growing inside her.
The foetus was not fully formed but still growing with it its own umbilical cord inside the baby.
The baby girl named Itzamara was born on February 22 in Barranquilla, Colombia.
She is the rare example of 'fetus-in-fetu' births, first described in 1808 but rarely seen.
The mother of the girl, Monica Vega of Barranquilla was 35 weeks pregnant when a scan showed that her baby may have a liver cyst.
The doctors were baffled whey they spotted the 35 weeks' gestation attached to Itzamara's intestine thanks to a 3D/4D ultrasound.
At 37 weeks, the team of doctors delivered three kg Itzamara via C-section and prevented the growing twin from causing any damage to her internal organs.
Keyhole surgery was performed the next day to remove the 45-millimetre, 14-gram twin, who died once the umbilical cord was cut.
The foetus had arms and legs but no heart and no brain.
A month after the surgery, little Itzamara is in perfect health, with barely any signs of damage or impact to her abdomen.