Before the pathologist gave his evidence, Justice Timothy Brewer warned the jury that they would be shown photos that would be difficult to stomach.
"You're not going to find them pleasant to look at ... I just give you that warning," he said.
Dr Wigren detailed a plethora of Mrs Gotingco's injuries for the jury which included a stab wound in her neck within which they found pieces of her necklace.
He highlighted one "very severe" wound - 14.5cm long and 2cm deep - which partially cut through her windpipe and exposed her jaw bone.
When her lungs were dissected, Dr Wigren found a "mottled, reddish colour".
"What this tells me is blood has been inhaled into the deepest parts of the lung ... she was alive and she was breathing [when the wound was inflicted]," he said.
A T-shirt found around Mrs Gotingco's neck was thought to have originally been white in colour but had turned red because of the bloodshed.
Mrs Gotingco was stabbed several times too.
One such wound was 15cm deep and had been so forceful her rib had been completely cut and her lung punctured.
Further details of the victim's injuries are expected to be covered this afternoon.
The trial, before Justice Brewer and a jury of seven women and five men, is scheduled to last another two weeks.
Dr Wigren went on to outline the blunt-force trauma caused to Mrs Gotingco.
As well as several bruises and abrasions, she also suffered a broken jaw and some missing teeth.
"They had been violently removed or ripped out as a result of blunt-force impact," he said.
Less obvious was an injury to the cartilage inside Mrs Gotingco's throat, which the medical professional said could have been caused by strangulation.
Burst capillaries in the victim's eyes furthered that theory, according to Dr WIgren.
He also highlighted a double break to Mrs Gotingco's left leg, the height of which he believed was consistent with being struck by a car's bumper.
