川崎病(KD)又称为皮肤黏膜淋巴结综合征,是儿童常见的系统性血管炎之一。本病主要累及全身中等血管,尤以冠状动脉受累最为严重,并且可发生于病程任一时期,以腹膜炎为首发表现的KD较为罕见,极易发生误诊而延误治疗。1病例资料患儿女,8岁,2015年4月因腹痛2 d、发热1 d入天津市第二儿童医院,呈中高热,弛张热型。自述右下腹持续性疼痛,伴腹胀,无呕吐、腹泻。病程中有尿频,无排尿疼痛。查体:体温38.5℃, Kawasaki disease (KD), also known as mucocutaneous lymph node syndrome, is one of the common systemic vasculitis in children. The disease mainly affects the whole body of medium blood vessels, especially coronary artery involvement is the most serious, and can occur in any period of the disease, peritonitis as the first manifestation of KD is relatively rare, prone to misdiagnosis and delay treatment. 1 case data Children, 8 years old, April 2015 due to abdominal pain 2 d, fever 1 d into the Second Children’s Hospital of Tianjin, was in the heat, remission type. Read the right lower quadrant persistent pain, with bloating, no vomiting, diarrhea. Urine frequency in the course of the disease, no urination pain. Physical examination: body temperature 38.5 ℃,