Chapter 683

Song tingshen nodded. 80% is OK. At least it will be a little closer. If you are lucky, the other pair doesn't match at all. The closer pair is.

"I have a case here. The child has liver cancer and wants to do liver transplantation, but his parents are not his biological parents. Now he has found the suspected one. Can you help me do a paternity test for them?" Song tingshen said.

"Yes, but I just said that the success rate is not 100..." Zhang Ming said.

"It doesn't matter, just use the exclusion method." Song tingshen said.

"Well, you can let them come over, or you can draw blood directly and send it over." Zhang Ming said.

"OK, I'll ask my students to send it to you." Song tingshen hung up the phone and said to an Zehan, "take these two couples to have a blood test, then take a tube of the blood of the two AB and Chen Yuan, pack it in a fresh-keeping box and send it to this address..."

Song tingshen tore a prescription label and wrote down Zhang Ming's address, "send the blood sample to a teacher named Zhang Ming."

"OK." Anzehan nodded and took two couples to have a blood test.

"Doctor, after this test, do you know who Yuanyuan's biological parents are?" Chen Yuan's mother asked in surprise.

Song tingshen nodded, "I should know if there is no accident."

It is unlikely that both people are similar to Chen Yuan's genes. Even if they can't match 100%, they can basically be identified.

"When will we know?" Chen Yuan asked urgently. He couldn't wait.

"It may take a week. I'll hurry later to see if it can be urgent. If it's urgent, it should be done in two or three days." Song tingshen said.

"Two or three more days?" Chen Yuan's mother was a little disappointed and thought that the results would come out soon.

"It's already fast. I can't hurry." Song tingshen said, "why don't you find a place to live first and get the results in two days. If there is a match, you should also check your body to see if you can do it."

"By the way, if there are Chen Yuan's parents, are they willing to donate liver to Chen Yuan?" Song tingshen asked, after all, they haven't lived together for so many years. If they want to say that their feelings are not deep enough, it depends on whether they attach importance to family affection. After all, Chen Yuan is dying, and if they're gone, it won't affect them.

"We talked about Yuanyuan, but they sympathized. After all, Yuanyuan may also be their children and will not die." Chen Yuan's father said.

"That's good." Song tingshen nodded, "then wait for the result."

After a while, the couple came back and said that they had determined that Aunt Wang and uncle Lin were AB blood, and anzehan drew blood for them.

An Zehan followed from behind, "Chen Yuan, you come too. Your blood hasn't been drawn yet." I forgot just now.

"Oh!" Chen Yuan answered and went with an Zehan.

After drawing blood, several people went out to find a small hotel. Naturally, Chen Yuan's family was responsible for the expenses.

Ask them to come to the capital. If they can help them find their own son, they are also happy. Even if they are not Chen Yuan's parents, they will be regarded as traveling to the capital. Therefore, they are very happy to hear Chen Yuan say they want to bring them to the capital.

After two days, Zhang Ming came to the conclusion that Aunt Wang and Uncle Wang should be Chen Yuan's parents, because the leukocyte antigens of the other pair are too different. This is the exclusion method. Wang's pair is Chen Yuan's biological parents.

"You are my biological parents?" Chen Yuan was very excited and finally found it.

Aunt Wang and Uncle Wang are also very excited and a little sad to hear that Chen Yuan is their own son. Their son who has been raised for decades is not his own. How can people not be sad if he has cancer or his own.

"Child, we..." they were also full of tears. "You are our son?"

"Then your child is our son?" Chen Yuan's parents were surprised and happy.

Surprised that Chen Yuan is not his own child after all, happy that his own son has found a healthy person, and Chen Yuan also has hope to be cured.

Uncle Lin and aunt Lin were also very happy for them, "Congratulations!"

Aunt Wang and Uncle Wang hugged Chen Yuan and cried bitterly, "child, you've suffered!"

After an acquaintance, the two sides slowly calmed down.

"In this way, Aunt Wang will donate liver to Chen Yuan. Are you willing?" Song tingshen asked.

"Yes, yes, save your son, of course." Both husband and wife nodded.

Song tingshen nodded, "then we need to do a series of tests to see if you are fit."

He took out a questionnaire, asked his name, age, etc., and then asked if he had any medical history before?

"Have you ever had any disease before, or have you had high blood pressure, heart disease, etc.?" Guo Xiang explained.

"I don't have hypertension and heart disease, but I've had liver cancer." Said Aunt Wang.

"What?" People were shocked, "have you ever had liver cancer?"

"Yes, but that was last year. Fortunately, it was discovered early at that time and underwent resection. Now it's all right." Said Aunt Wang.

Song tingshen looked at Aunt Wang and put down his pen. "That can't be done."

"Then why didn't you say it earlier?" Chen Yuan's mother raised her voice.

"You didn't ask. Besides, isn't it good for me? I'm in good health now. " Said Aunt Wang.

Everyone is speechless. It's impossible for a person who has had liver cancer to donate liver to others.

"Then... Is there no hope again?" Chen Yuan's spirit decayed. The whole person withered as if he had been cramped. After looking for it for so long and trekking so far, he got such a result. How can it not make people sad?

"I, this... Can't give my liver to the child? Isn't the child hopeless? " Aunt Wang and her husband are also in pain. Is the son they just recognized going to die?

"Why not?" Uncle Lin.

"Aunt Wang has had liver cancer and her liver has been damaged. Although the tumor has been removed, her stool liver is not a healthy liver. She is fine now, but her liver function is working. In addition, although the tumor is cut, there is no 100% guarantee that there are no cancer cells in the liver. In fact, liver cancer is also easy to relapse. "

"If you cut off half of her liver, let alone herself, it may not be successful even for Chen Yuan. What we need is a healthy liver." Song tingshen said.

"Yes!" Guo Xiang nodded, "a healthy liver can't be 100% guaranteed to succeed, not to mention a damaged liver. I'm afraid they can't keep it at that time."

"What about that?" Chen Yuan's mother exclaimed.

Everyone was silent and had no choice.

Chen Yuan smiled bitterly. Why should God torture himself like this?

It gave hope and broke it hard.

"Is this... Inherited from Aunt Wang to Chen Yuan?" Aunt Lin asked.

"That's not true." Guo Xiang shook his head. "Liver cancer itself is not hereditary, but liver cancer has aggregation in the family, mainly related to hepatitis. Maybe Aunt Wang is a hepatitis B carrier. Now the newborns do not have hepatitis B vaccine. "

Almost every newborn born in the next twenty-four hours will have the first dose of hepatitis B vaccine, which is meant to block the virus carried from the mother's body.