患儿男，２岁。以发热伴右侧颈部肿块６天入院。其体温波动在３８～４０５℃，不伴畏寒、寒战或抽搐。同时发现右侧颈部包块，局部无红肿。入院前４天出现口唇发红、干裂。病后精神、胃纳稍差，易激惹、烦躁，无皮疹史。尿正常，褐色稀便，每日２～３次，无粘液脓血。曾... Children male, 2 years old. To fever with right neck mass 6 days admission. The body temperature fluctuations in 38 ~ 40  5 ℃, not with chills, chills or convulsions. At the same time found the right side of the neck mass, no local swelling. 4 days before admission lips redness, chapped. After the illness, poor appetite, irritability, irritability, no history of rashes. Urinary normal, loose stools, 2 to 3 times a day, no mucus pus and blood. Once...