pneumonia dissecans

例句：

1. 1.The patient was diagnosed with pneumonia dissecans, which required immediate treatment.
   患者被诊断出患有肺炎分隔症，需要立即治疗。
2. 2. The doctor explained that pneumonia dissecans can be caused by various factors, including viral infections.
   医生解释说，肺炎分隔症可以由各种因素引起，包括病毒感染。
3. 3. After several days of treatment, the patient's condition improved significantly, and he was discharged from the hospital.
   经过几天的治疗，患者的病情明显好转，并被出院。