“Teacher, you can let students from the neighboring school join in the discussion. I don’t have to speak alone all the time.” Duan Sanbao replied.
If you listen carefully, his voice sounds a bit like glutinous rice, sticky, with a slow tone, and accompanied by bright eyes with a bit of sweetness, like a kindergarten kid who is studying hard.
He's really a super cute boy.
When this person started to express his academic opinions, Zhao Zhaowei and others could already sense that his unwillingness to answer was by no means a humble and low-key act.
Zhao Zhaowei frowned, pulled up Zhang Desheng's shirt and said, "You speak, or Shihua speaks first. This guy must have heard something from somewhere. Look at his eyes staring at Yingying."
He would never be fooled by the cute appearance of this classmate. Zhao Zhaowei swore that not only Xie, but all the students in the National Association were the elves mentioned by Teacher Ren.
When Duan Sanbao heard what the boys from the National Association said, he lowered his head, tapped his pen on the paper, and continued to act like a natural ostrich.
After competing with the genius Song Xuelin from Beidu, Zhao Zhaowei became more and more convinced that his intuition was correct: this guy was pretending and trying to trick Xie into telling him something.
"Are you participating?" Cheng Yuchen turned around and asked the students of the National Association.
...
...
The people in the capital started to make a noise, "Come in and discuss it together. Don't hide it, it will suffocate you to death."
With Zhao Zhaowei's opinion, Zhang Desheng was the first to step forward and said loudly: "I'll tell you one."
The scene was quiet.
The people of the National Association had their hearts pounding, and the eyes of the people of the capital across the way seemed to be waiting for them to fail.
Zhang Desheng, keep going. ——Zhao Zhaowei and the others said in their hearts.
After hearing his classmates' concerns, Zhang Desheng became nervous. He pulled his voice a few times and then lowered it and said, "The film shows that the heart septum angle has become blunt. It could be a lung infection, swollen lymph nodes, or as he said, there could be heart problems. It's unlikely to be a fat pad because the patient is young and not fat."
The human diaphragm appears as an arched bridge on the frontal and lateral views of the chest X-ray. This arched shape and the projection of the heart form an angle called the cardiodiaphragmatic angle, which is actually the angle between the inner side of the lung and the heart. If the human body is dissected, the definition of the cardiodiaphragmatic angle becomes more complicated because the human body is a three-dimensional space. There is the pericardium on the outside of the heart, the lungs on both sides, and the chest wall in front and behind. The cardiodiaphragmatic angle is the three-dimensional angle between the pericardium and the lungs or chest wall.
It is impossible for a doctor to see the three-dimensional space of the human body when looking at a chest X-ray. He can only make a rough judgment and summarize a set of experience.
Medical experience shows that for normal people, the angle of the heart is sharp on the chest X-ray. If it becomes blunt, it may be due to the infiltration of nearby inflammatory tissue, which causes the shadow to become larger, or it may be due to lung infection or lymphadenopathy. Another possibility is that the heart becomes larger and the projection of the heart becomes larger, so the angle becomes blunt naturally. For fat people, there is a possibility that the shadow is misdiagnosed as a heart disease due to the excess fat.
Student Zhang Desheng answered the question in a general way about how another doctor read a patient's chest X-ray.
When a doctor reads the examination report, he not only wants to see whether the direction of his suspicion is correct, but also needs to look at all other aspects clearly to determine whether the patient has other physical problems.
When reading the most common frontal and lateral chest X-rays, it is necessary to distinguish organs such as the lungs, heart, mediastinum, pleura, diaphragm, and ribs.
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