Infantile multisystem inflammatory disease: another case of a new syndrome.

A 4-year-old girl with neonatal onset of chronic diffuse urticarial rash, head enlargement, protruding eye balls, bilateral arthritis of the knees, growth and mental retardation, and signs in blood and cerebrospinal fluid of chronic inflammation is presented and compared to two similar cases reported by us previously. Including this new patient there are now 14 documented cases with this specific inflammatory syndrome whose aetiology remains unknown. In the present case, however, elevated antibody titres against I.ric. Borrelia antigen were found in the serum.