患者女，２９岁。因右颌下淋巴结肿大１周，畏寒、发热３天，于１９９７年１月２３日入院。入院前１周无意中发现右颌下淋巴结肿大，约核桃大小，轻度触痛。４天后出现畏寒、发热，伴有咽痛及流涕，体温持续达３９～４０℃，在外院给予青霉素和菌必治治疗无效。入院查体：... The patient is 29 years old. Due to swelling of the right submandibular lymph nodes for 1 week, chills and fever for 3 days, she was admitted to hospital on January 23, 1997. One week before admission, I discovered that the right submandibular lymph nodes were swollen, about the size of a walnut, and mildly tender. After 4 days, there appeared chills and fever, accompanied by sore throat and runny nose, and the body temperature continued to reach 39-40°C. In the external hospital, penicillin and bacteriostasis were not effective. Admission examination:...