Chapter 118 Autopsy
(Warning if you have just eaten, you can skip this chapter)
"Let me just say it's too early for you."
Lin Xinyi patted Mao Lilan's back gently to help calm her down. After taking care of her for a long time, she finally relieved the little girl from the unprecedented nausea and vomiting.
"I'm sorry, Mr. Lin, I made this place dirty." Mao Lilan raised her head in embarrassment, her face still looking pale.
"It's normal, there's nothing to be sorry for."
Lin Xinyi comforted him a little, and then handed over the tissue paper that was also prepared long ago:
"Wipe your mouth. If you can't hold on, you can leave now."
"No, it's already come to this."
"Anyway, there is nothing left to vomit. Let me continue to help!"
Mao Lilan wiped the corners of her mouth gently while bravely insisting on staying.
Her mind is simple but stubborn. As long as she sees something clearly, she will stick to it until the end.
"Okay." Lin Xinyi admired this student's strong will:
"Then you put on clean gloves, take a camera to help take pictures and record, and we'll officially start."
The autopsy officially started, but it did not start directly. Instead, the body surface of the corpse had to be completely inspected before the autopsy.
"The surface skin and even the internal muscle layer are charred and charred. The situation is not optimistic."
Lin Xinyi carefully inspected the body surface of the body, his brows getting tighter and tighter.
Mao Lilan also bravely followed to check, and soon discovered something suspicious:
"Mr. Lin, are these wounds knife wounds?"
"No." Lin Xinyi shook his head.
Thinking that the purpose of this dissection was to teach students, he temporarily distracted himself and explained to Mao Lilan:
"This is a special phenomenon called 'skin cracking' that occurs when corpses are exposed to high temperatures."
"Because high temperature causes the skin to solidify and shrink, it separates and cracks from the subcutaneous tissue. It usually appears in a straight line or arc shape, and the direction is more consistent with the skin lines."
"When examining such burnt corpses, be careful to distinguish this corpse phenomenon from cuts and chopping wounds."
Lin Xinyi explained while conducting an autopsy, and soon discovered something:
"Look, this is the edge of the knife."
"There were obvious stab wounds on the deceased's back. Judging from the location of the wound and the angle of the knife entry, it was likely that someone stabbed the heart from behind."
"This kind of injury is undoubtedly a fatal injury that can lead to death - based on the circumstances of the case, the deceased should have been stabbed to death by the murderer in the back. After his death, the body was hidden by the murderer in the bonfire of the Chigui Village fire festival."
Lin Xinyi explained in detail the trauma found on the body, while Mao Lilan, as an assistant, seriously picked up the camera and helped take pictures and records.
"The high temperature destroys too many signs of the body, and there's only so much that can be seen on the body surface."
"Then let's start the dissection!"
Lin Xinyi sighed deeply.
As he spoke, he stood solemnly on the right side of the dissecting table and bowed slightly to the deceased being dissected.
Without Lin Xinyi's explanation, Mao Lilan could tell that he was showing respect to the deceased as a forensic doctor.
She followed suit and stood next to Lin Xinyi and bowed to the deceased, muttering subconsciously and easily:
"Don't worry, Mr. Negishi."
"We will definitely find the truth for you and catch the murderer!"
"Well, it will definitely happen." Lin Xinyi was not surprised by Mao Lilan's naivety in chatting with the dead, but agreed very seriously: "Because this is the job of our forensic doctors."
Then, he stood up straight and picked up a scalpel from the instrument cart next to him.
What we need to do this time is a systematic dissection. We need to open three cavities, that is, open the cranial cavity, chest cavity, and abdominal cavity, and conduct a systematic and complete anatomical investigation.
"I am accustomed to using the one-word incision method, which is the most trouble-free, direct and convenient."
"It starts from the midline of the lower edge of the mandible, along the midline of the neck, chest and abdomen around the left side of the umbilicus to the upper edge of the pubic symphysis, and incises the skin and subcutaneous tissue."
Lin Xinyi explained the anatomy techniques to Mao Lilan, giving her an initial impression.
Then, as he explained, he used the knife to slowly draw a long straight line from top to bottom along the midline of the lower edge of the jaw.
This knife cuts directly through the skin and soft tissue, and goes deep enough to expose the ribs of the chest.
From the current point of view, it is just a long, straight gash on the corpse, and the visual impact is not too great.
But then
I saw Lin Xinyi put down the scalpel and inserted his hand wearing two layers of gloves into the open incision in the middle of the chest.
As if peeling off a heavy piece of clothing, he tightly grasped the skin, subcutaneous fat and pectoralis major muscles as a whole layer, and peeled them off along the ribs to both sides.
The skin had been completely charred, and it began to shatter and fall like crumbled shortbread as soon as you squeezed it.
And because the thick fat layer under the skin has been severely roasted at high temperatures, it does not appear to be a yellowish color that looks similar to chicken fat under normal circumstances.
The entire fat layer was roasted until it shrank and leaked oil.
So when you peel it off with force, the grease visible to the naked eye will be squeezed out quickly.
""
Seeing this scene, Mao Lilan's face became increasingly pale.
She bit her lip tightly and her body trembled, but in the end she insisted on standing firm and did not look away.
"So strong"
Lin Xinyi couldn't help but sigh softly.
He felt that Mao Lilan was quite similar to him. They both studied martial arts first and then medicine, so they naturally had the perseverance of a warrior.
With this perseverance, one can quickly adapt to harsh environments that are difficult for ordinary people to adapt to.
"After peeling off the skin, fat and muscle layers, check whether there is bleeding and edema in the soft tissues, whether there are fractures in the sternum and ribs, the location and shape of the fractures, and whether there are any life-related reactions in the surrounding tissues."
"It's just that the soft tissue layers of this corpse are so charred that you can't tell much about it."
Seeing that Mao Lilan was quite energetic, Lin Xinyi simply gave her a lecture.
And he explained to Mao Lilan, and at the same time asked her assistant to help out and participate:
"Hand me the tweezers."
"Yeah." Mao Lilan reacted quickly, found a pair of tweezers from the equipment cart and handed it over.
It was obvious that she had gradually become accustomed to such impactful images and could keep up with Lin Xinyi's rhythm.
As soon as Lin Xin took the forceps, he carefully used the forceps to lift the peritoneum and make a small incision.
Then, under Mao Lilan's admiring gaze, Lin Xinyi directly stretched out the index finger and middle finger of his left hand to insert into the small opening to open it, and then used a knife to slowly cut open the peritoneum between the two fingers.
Just like cutting open the plastic envelope of a book, this can lift the peritoneum and cut it to avoid damaging the organs in the abdominal cavity during cutting.
The peritoneum is incised, and the muscles connected to the lower edge of the chest wall are cut along the costal arch to expand the abdominal cavity and the abdominal cavity is completed.
"The anatomy generally starts with the chest and abdominal cavity like this, and the cervical dissection is placed at the back."
"Because dissecting the chest and abdomen is equivalent to draining the blood first, it can avoid the observation of the original damage and bleeding in the neck due to blood contamination of the anatomical area of the neck when cutting the soft tissue of the neck."
"Especially for those who are suspected of being hanged, strangled, or strangled to death, this order of anatomy must be adopted, with the chest and abdomen first and then the neck."
"Of course, the body fluids of this charred corpse evaporated in large quantities at high temperatures, so bloodletting is of little use. In fact, we can also start from the neck."
Lin Xinyi explained to Mao Lilan in detail while immersing himself in his work.
"I understand." Mao Lilan nodded seriously, and silently wrote down the knowledge based on the pictures he saw.
Lin Xin, on the other hand, increased his speed, finished opening the abdominal cavity, completely exposing the ribs, and then hurriedly opened the chest cavity.
He took the scalpel and started cutting from the second costal cartilage.
When cutting, tilt the blade to the outside, cut off the costal cartilage and intercostal muscles one by one about 1cm inside the junction of the ribs and costal cartilage, and use the scalpel to cut off the sternoclavicular joint and the first rib in an "S" shape.
Then, he lifted the rib arch against the sternum and the posterior wall of the costal cartilage to separate the transverse sternal and mediastinal connective tissue.
Finally, the sternum was removed to expose the chest, and the chest was completely opened.
After doing this, Lin Xinyi stopped moving and fell into silence thinking.
"Mr. Lin Xinyi, do you have any questions?"
Mao Lilan noticed the solemn expression on Lin Xinyi's expression.
“The situation is a bit troublesome”
"This body was too damaged by the heat."
Lin Xinyi's tone became a little solemn:
After opening it, I realized how badly the body had been damaged by the high temperature.
Not only did the carbonization extend from the skin to the muscle layer, but even the internal organs and tissues seen after opening the chest and abdominal cavity were almost cooked by the powerful heat that penetrated from the outside.
Although these organs were not roasted to the same level as the surface skin, the worst case scenario was avoided.
But the carcass was like a perfectly cooked roast duck. It was burnt on the outside and almost cooked on the inside.
"The main purpose of our autopsy is to determine the true time of Mr. Negishi's death and overturn Yutaka Abe's alibi."
"If the roasting is not too severe, you can easily determine the time of death by directly observing whether the organs in the body are decayed or discolored, or by extracting the decaying bacteria in the organ tissue for research."
"but now"
Looking at the organs that had been severely discolored and deformed due to high temperature, Lin Xinyi sighed helplessly:
"It's a little difficult to judge the time of death."
There is one more item that has not been coded yet. Once it is coded, it will be sent out in the middle of the night or tomorrow morning.
There is no way for a layman to write about anatomy for the first time. I seriously underestimate the difficulty.
Time was spent on repeatedly checking the information, and coding was particularly difficult.
The 3 chapters I owe can only be replenished slowly like this one more code every day.