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[土耳其非流行省份(安卡拉)一例由婴儿利什曼原虫引起的皮肤利什曼病]

[A case of cutaneous leishmaniasis caused by Leishmania infantum in a non-endemic province (Ankara) of Turkey].

作者信息

Dinçer Didem, Arca Ercan, Koç Erol, Topal Yusuf, Taylan Özkan Ayşegül, Celebi Bekir

机构信息

Gülhane Military Academy of Medicine, Department of Dermatology, Ankara, Turkey.

出版信息

Mikrobiyol Bul. 2012 Jul;46(3):499-506.

Abstract

Southeastern Anatolia and the Mediterranean regions of Turkey are known as endemic areas for cutaneous leishmaniasis (CL). In this report, a 64 years-old male patient with CL caused by Leishmania infantum has been presented. The patient who was inhabiting in Ankara (Central Anatolia region, Turkey) complained from a lesion on his right ring finger for the last six months. He has a cat and has been engaged with gardening. Overall, he was healthy with the exception of hypertension and glucose intolerance. The patient had not left Ankara since the last seven months, however, he had previously been to the Aegean coast during his summer holiday. The examination of the 4th phalanx of his right hand revealed the presence of a 3 x 3 cm erythematous, slightly swollen lesion, at the center of which 1.5 x 1.5 cm ulcerative area covered with a hemorrhagic crust, was detected. Neither axillary or cervical lymphadenopathy, nor hepatosplenomegaly could be observed. The routine examinations, including complete blood count, serum biochemistry, chest X-ray and abdominal ultrasonography were within normal limits. Giemsa stained smears prepared from aspiration of the lesion revealed amastigote-like organisms and leishmania promastigotes were grown in NNN media. PCR amplification of the specimen indicated the presence of a positive DNA band of 420 bp specific for Leishmania spp. The serum sample of the patient revealed positivity for leishmaniasis by the rapid rK39 test and immunofluorescence antibody (IFAT) test. The organism was identified as L.infantum by PCR-RFLP applied to the cultivated organism. The examination of his cat's serum for leishmaniasis by IFAT and PCR, were negative. The exact way of transmission had not been confirmed for the patient. However, when long incubation period of CL was considered, the transmission might probably occurred during his summer stay in the Aegean coast. This case was presented to withdraw attention to a delayed diagnosis of CL which developed in a non-endemic area and which was due to L.infantum instead of the more common L.tropica species.

摘要

土耳其的安纳托利亚东南部和地中海地区是皮肤利什曼病(CL)的流行地区。在本报告中,呈现了一名64岁的男性皮肤利什曼病患者,该病由婴儿利什曼原虫引起。该患者居住在安卡拉(土耳其安纳托利亚中部地区),在过去六个月里右手无名指出现一处损伤。他养了一只猫,并且从事园艺工作。总体而言,除了高血压和糖耐量异常外,他身体健康。该患者自七个月前起就未离开过安卡拉,不过他曾在暑假期间去过爱琴海沿岸。对其右手第四指骨的检查发现,有一个3×3厘米的红斑、轻微肿胀的损伤,在损伤中心检测到一个1.5×1.5厘米的溃疡区域,覆盖着出血性痂皮。未观察到腋窝或颈部淋巴结肿大,也未发现肝脾肿大。包括全血细胞计数、血清生化、胸部X光和腹部超声检查在内的常规检查均在正常范围内。从损伤部位抽吸物制备的吉姆萨染色涂片显示有类无鞭毛体生物,并且在NNN培养基中培养出了利什曼原虫前鞭毛体。对标本进行PCR扩增表明存在一条420 bp的利什曼原虫属特异性阳性DNA条带。患者的血清样本通过快速rK39试验和免疫荧光抗体(IFAT)试验显示利什曼病呈阳性。通过对培养出的生物体进行PCR-RFLP分析,该生物体被鉴定为婴儿利什曼原虫。通过IFAT和PCR对其猫的血清进行利什曼病检查,结果为阴性。该患者的确切传播途径尚未得到证实。然而,考虑到皮肤利什曼病的潜伏期较长,传播可能发生在他夏季在爱琴海沿岸停留期间。本病例旨在提请注意在非流行地区发生的、由婴儿利什曼原虫而非更常见的热带利什曼原虫引起的皮肤利什曼病的延迟诊断。

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