Spider bite mimicking pyoderma gangrenosum in sJIA: a case report

Introduction: Several paediatric patients manifest conditions commonly misdiagnosed as spider bites, which however, can include other arthropods bites; bacterial, viral, and mycotic infections; vasculitis; dermatological diseases; miscellaneous conditions as drug reactions, chemical injuries. Objectives: In Italy, spiders which are likely to be associated with severe toxin mediated tissue damage are uncommon, especially in urban zones. However, a minor trauma may be a precipitating factor for pyoderma gangrenosum particularly over the legs, in association with inflammatory bowel disease, haematologic diseases and Juvenile Idiopathic Arthritis (JIA).