Ekaterina Fedyaeva's mother accused medics of putting her daughter on a formalin drip, which includes formaldehyde, instead of saline.
The 27-year-old had been in hospital in Ulyanovsk for routine surgery but after being given the wrong drip suffered pains and convulsions for two days before falling into a coma.
Despite being flown to a top Moscow hospital she died of multiple organ failure.
Her mother Galina Baryshnikova said: 'Her legs were moving, she had convulsions, her whole body was shaking.
Mrs Baryshnikova added: 'Now I understand that formalin was simply eroding her body from inside. People who performed the surgery already knew that they infused something wrong.
Source:
https://www.google.co.uk/amp/metro....ue-to-medical-blunder-by-doctors-7450222/amp/