Sir.—Arthritis in chickenpox is a very rare complication with only a few reported cases in the literature. Herein, we describe a boy who had multifocal arthritis during the course of chickenpox and whose symptoms disappeared spontaneously.
Patient Report.—A 4-year-old child was hospitalized after six days of chickenpox because of pains in the legs and difficulty in standing and walking. Medical histories of himself and his family were normal. On examination the patient's temperature was 39.6 °C; a typical varicella eruption was present over the entire body, there was tenderness to touch over the entire length of both lower extremities, and there was resistance to passive movement of both knees and the left hip. Laboratory studies disclosed the following values: hemoglobin, 12 g/dL; white blood cell count, 9,500/cu mm; and sedimentation rate, 88 mm/hr. Blood cultures were negative. Roentgenograms of the left knee and left elbow demonstrated soft-tissue swelling.