关键词: 贝赫切特综合征, 儿童, 皮疹, 消化道出血, 病例报告

Abstract: Behcet's disease is a systemic disease involving multiple systems and organs.The basic pathological manifestations are vasculitis mediated by the immune complex，which can involve any size and types of blood vessels with diverse and complicated clinical manifestations.The disease is characterized by an alternating process of repeated attacks and remission，while the laboratory results are non-specific and its early diagnosis is extremely difficult.Early clinical symptoms of Behcet's disease in children are atypical and heterogeneous，and the disease can progress rapidly in a short period of time.In this study，we retrospectively analyzed the evolution of a case of Behcet's disease and the process of its diagnosis and treatment，and reviewed the relevant literature，so that clinicians can further understand the disease and diagnose it correctly as soon as possible，so as to carry out early disease management and prevent critical illness.

Key words: Behcet syndrome, Child, Exanthema, Gastrointestinal hemorrhage, Case report