Eosinophilic fasciitis without peripheral eosinophilia presenting as pyrexia of unknown origin

Eosinophilic fasciitis is a syndrome usually characterized by limb and joint pain, a raised sedimentation rate, hypergammaglobulinaemia, subcutaneous fasciitis and peripheral as well as tissue eosinophilia. We present a case with a positive tissue diagnosis, but who presented predominantly with marked nocturnal sweating and pyrexia.