Calvopina Manuel, Gomez Eduardo A, Uezato Hiroshi, Kato Hirotomo, Nonaka Shigeo, Hashiguchi Yoshihisa
Department of Parasitology, Kochi Medical School, Kochi University, Kochi, Japan.
Am J Trop Med Hyg. 2005 Aug;73(2):281-4.
In recent times, there has been an increase in the number of reports for new and rare variants of cutaneous leishmaniasis (CL). Here, we describe three unusual clinical forms of CL identified in Ecuadorian children. A total of 131 patients with CL were diagnosed over a 2-year period of active search. In 3 (2.29%), the lesions were very unusual; these included erysipeloid, recidiva cutis (LRC), and disseminated leishmaniasis (DL). The erysipeloid case is characterized by erythematous and indurated plaque seen on the face of a 5-year-old boy; the LRC one is differentiated by slowly progressing red-brown papules around large scars of healed sores in a 6-year-old girl, and the DL case is characterized by dozens of cutaneous ulcers distributed in the whole body of a 1-year-old girl. Leishmania parasites were isolated by lesion aspirate and analyzed by the technique multilocus enzyme electrophoresis (MLEE). All three isolates were identified as Leishmania (Viannia) panamensis. These distinct clinical variants rarely have been reported previously in the American cutaneous leishmaniasis, and for the first time L. (V.) panamensis was identified as the etiologic agent. Our cases extend the spectrum of clinical presentations in New World leishmaniasis.
近年来,皮肤利什曼病(CL)新的罕见变种报告数量有所增加。在此,我们描述在厄瓜多尔儿童中发现的三种不寻常的CL临床形式。在为期2年的积极筛查期间,共诊断出131例CL患者。其中3例(2.29%)病变非常不寻常,包括丹毒样、皮肤复发型利什曼病(LRC)和播散性利什曼病(DL)。丹毒样病例表现为一名5岁男孩面部出现的红斑和硬结斑块;LRC病例表现为一名6岁女孩愈合疮口大疤痕周围缓慢进展的红棕色丘疹,而DL病例表现为一名1岁女孩全身分布的数十个皮肤溃疡。通过病变抽吸物分离利什曼原虫,并采用多位点酶电泳(MLEE)技术进行分析。所有三个分离株均被鉴定为巴拿马利什曼原虫(Viannia亚属)。这些不同的临床变种此前在美国皮肤利什曼病中很少有报道,并且首次确定巴拿马利什曼原虫(Viannia亚属)为病原体。我们的病例扩展了新大陆利什曼病的临床表现谱。