Case 14-1999: A Nine-Year-Old Girl with Fever and Cervical Lymphadenopathy

Presentation of Case A nine-year-old girl was admitted to the hospital because of fever and cervical lymphadenopathy. The patient had been well until four weeks earlier, when she began to have bilateral popliteal pain that extended upward over the posterior portions of the thighs. The pain decreased with rest and resolved spontaneously within a week. Fever (a temperature of up to 38.9°C) and sore throat soon developed. Twelve days before admission, the girl became fatigued and had anorexia and an enlarged lymph node. Five days before admission, laboratory studies were performed (Table 1 and Table 2). Two days later, cough, mild diarrhea, . . .