Seven medical professionals are currently on trial for culpable homicide in connection with football legend Diego Maradona's death, with all defendants denying the charges.
Distressing details of Maradona's final hours emerged in court as gruesome images of his organs were shown for the first time.
The revelation prompted his daughter Jana to leave the courtroom.
The 1986 World Cup winner died following a heart attack aged 60 in 2020, with prosecutors alleging his death could have been prevented.
Seven medical professionals are currently on trial for culpable homicide in connection with football legend Diego Maradona's death, with all defendants denying the charges
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Forensic evidence presented in court revealed Maradona's heart had swelled to double that of a regular size, weighing 503 grams - more than a football.
Four-and-a-half litres of fluid had accumulated in his organs due to an acute pulmonary edema brought on by heart failure.
Forensic expert Carlos Mauricio Casinelli showed pictures of brain clots, describing them as a "sign of agony".
The Argentinian newspaper Clarin reported these horrifying details which emerged during the trial.
Casinelli claimed Maradona's condition was foreseeable and preventable, with signs that would have been obvious to any examining doctor.
Diego Maradona's daughter, Jana Maradona, walked out of court after learning her father 'died in agony'
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"The heart was completely covered in fat and blood clots, which indicate agony," he testified.
He explained the fluid accumulation wasn't sudden: "This was something that was foreseeable. Any doctor examining a patient would find this."
"The water he had in his abdomen, in both pleurae, and in his heart isn't normal; it doesn't form in a day or an hour. It's been forming over several days."
Casinelli also described Maradona's recovery environment as unsuitable for home hospitalisation.
"It was a dark, partitioned room, with a bed in the middle of the room and a portable toilet," he said.
Forensic doctor Federico Corasaniti corroborated that Maradona suffered a gradual death rather than a sudden event.
He testified that Maradona's condition was so severe that his breathing difficulties would have been audible to others nearby.
"The sounds in his lungs that are audible just by bringing his face close," Corasaniti explained.
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Maradona's family have alleged negligence and a cover-up by his medical team, describing it as a "mafia".
The football icon had struggled with drug addiction, obesity and alcoholism for decades, reportedly coming close to death in 2000 and 2004.
The seven medical professionals on trial, including Maradona's brain surgeon, psychiatrist and nurses, could face up to 25 years in prison if convicted.
All defendants deny wrongdoing in the case.
Maradona won the World Cup with Argentina in 1986, having knocked England out in the quarter final with the infamous 'Hand of God' goal.
Diego Maradona helped Argentina win the World Cup back in 1986PAHe was also credited with another strike in that match later voted 'Goal of the Century'.
Renowned for his breathtaking playing ability, Maradona's wild life off the pitch was equally notorious.
His official cause of death was listed as 'acute pulmonary edema secondary to exacerbated chronic heart failure'.
The trial continues with evidence suggesting he endured an agonising 12-hour death struggle.