亚急性甲状腺炎（以下简称亚甲炎），又称巨细胞性甲状腺炎，肉芽肿性甲状腺炎，近年发病率有增高趋势，因其临床表现多样，很容易漏诊、误诊，作者总结了１９９５年５月至２００１年３月诊治的亚甲炎病人２８例，现结合有关文献分析如下。1 临床资料1．１ 一般资料1９９５年５ Subacute thyroiditis (hereinafter referred to as methylene inflammation), also known as giant cell thyroiditis, granulomatous thyroiditis, the incidence in recent years, an upward trend, because of its diverse clinical manifestations, it is easy to misdiagnosis, misdiagnosis, the author concluded in 1995 May to March 2001 diagnosis and treatment of 28 cases of methylene blue inflammation, are now combined with the relevant literature analysis is as follows. 1 Clinical data 1.1 General Information 1995 5