pyelitis

例句：

1. 1. The patient was diagnosed with pyelitis and required immediate hospitalization.
   患者被诊断出患有肾盂炎，需要立即住院治疗。
2. 2. The doctor prescribed antibiotics to treat the patient's pyelitis.
   医生开了抗生素来治疗患者的肾盂炎。
3. 3.Pyelitis can be caused by various factors, including bacterial infections.
   肾盂炎可以由多种因素引起，包括细菌感染。