The sister of Eman Abd El Aty, an Egyptian woman thought to have been the world’s heaviest, has accused doctors of lying about her weight loss after surgery in India.
She underwent surgery in Mumbai’s Saifee hospital, and last week doctors said she had lost 250kg (550lbs).
But her sister said this was untrue, adding that her sister was in delicate health as she may have had a stroke.
The hospital has angrily rejected the allegations.
The row began on Monday when Ms Abd El Aty’s sister, Shaimaa Selim, released a short video on social media, alleging that her sister was still unable to speak or move, and had not lost as much weight as the hospital was claiming.
On Tuesday, she told the BBC that the hospital was lying about her weight loss.
“He [Dr Muffazal Lakdawala, who led the operation] didn’t weigh her before and after. If he has any proof of her weight loss, show us the video of her weight before and after.”
Describing her sister’s health as delicate, she said: “Oxygen is not normal in her body. She has to wear an oxygen mask almost all the time. There is a tube from her nose to her stomach because she can’t eat or drink well from her mouth.
But a spokeswoman for the hospital told the BBC that Ms Abd El Aty was weighed again on Monday and she now weighed 172kg.
Dr Lakdawala also strongly denied the allegations in a tweet.