Ekaterina Fedyaeva, 27, died in excruciating agony after a medical blunder.
A 27-year-old woman has died in excruciating agony after she was embalmed alive due to a horrific medical blunder.
Ekaterina Fedyaeva's mother has accused medics of 'murder' after they put her daughter on a formalin drip - a solution contain formaldehyde - instead of saline.
The woman had been in hospital in her home city of Ulyanovsk in Russia for routine surgery.
She was given a drip normally infused into the veins of the dead to prevent decomposition.
Ekaterina suffered horrible pains and convulsions for two days before falling into a coma.
Ekaterina was buried on 7 April and a criminal investigation is underway.
What is formaldehyde and how is it dangerous to humans?
Formaldehyde was declared a carcinogen by the US government in 2011 but is widely used as part of embalming fluid to preserve dead bodies.
Formalin, made up of around 37 per cent formaldehyde, is a colourless, strong-smelling chemical substance used in industry and well known to preserve human corpses.
Embalmers inject at least 11.3 litres of the fluid into the cadaver's arterial system and body cavity to slow decay for burial ceremonies.
Drinking 30 millilitres of formalin can kill an adult, while drinking doses of concentrated formaldehyde can cause death from respiratory failure or lead to a coma.
It can also cause convulsions, stomach pain, diarrhoea, vomiting, vertigo and a host of other side effects.