亚急性坏死性淋巴结炎（简称SNL）是近几年才被认识的炎性免疫反应性非肿瘤性淋巴结肿大性疾病。至今国内报道不多，本院发现1例，现报道如下。患儿男，5岁。因间歇性低热伴颈部淋巴结肿大1个月入院。患儿纳差渐渐消瘦，常述腹痛、关节痛及乏力。体检：T37．5℃，无皮疹、颈部 Subacute necrotizing lymphadenitis (referred to as SNL) is an inflammatory immunoreactive non-neoplastic lymphadenopathy that has only been recognized in recent years. So far little domestic coverage, the hospital found 1 case, are reported below. Children male, 5 years old. Due to intermittent fever with cervical lymph node enlargement 1 month admission. Anorexia children gradually weight loss, often described abdominal pain, joint pain and fatigue. Physical examination: T37.5 ℃, no rash, neck