Lucio现象是弥漫性瘤型麻风的一种急性表现,发生于化疗之前,特点为成批的斑状或稍硬的红斑性皮损,中央发生坏死且往往破溃导致皮肤溃疡。上述损害好发于四肢,痊愈后残留萎缩性星状疤痕。组织学检查显示为真皮血管的坏死性脉管炎。这种病人按Ridley分类,临床上属于LL。Lucio现象常见于墨西哥和其他中美国家,美国也曾报告过一些病例。为了阐明这种麻风合并症的发 The Lucio phenomenon is an acute manifestation of diffuse nidus leprosy that occurs prior to chemotherapy and is characterized by a patchy or slightly hardened erythematous lesion with central necrosis and ulceration that often leads to ulceration of the skin. The damage occurs in the limbs, residual atrophic asteroid scar after healing. Histological examination revealed necrotizing vasculitis of dermal vessels. This patient is classified by Ridley and is clinically LL. Lucio phenomenon is common in Mexico and other Central American countries, the United States has also reported a number of cases. In order to elucidate the development of this leprosy complications