红色毛癣菌致慢性复发性泛发型浅部真菌病的临床分析  

Clinical analysis on chronically recurrent and generalized superficial mycosis caused by trichophyton rubrum

作　　者：孔庆涛[1] 邓琳[1] 李宗辉[1] 胡治丽[1] 梅寰 桑红[1] 刘维达[2] 

机构地区：[1]南京军区南京总医院皮肤科,南京医学硕士210002 [2]中国医学科学院协和医科大学皮肤病研究所,南京210042

出　　处：《医学研究生学报》2015年第4期390-393,共4页Journal of Medical Postgraduates

基　　金：国家自然科学基金(81371782)

摘　　要：目的慢性复发性泛发型浅部真菌病患者较少见。文中探讨红色毛癣菌所致的慢性复发性泛发型浅部真菌病的原因及诊疗方法。方法收集南京军区南京总医院2012年6月至2014年6月就诊的5例红色毛癣菌所致的慢性复发性泛发型体癣患者,取患者皮损进行真菌镜检及培养,对其中1例典型患者(病程7年,趾甲严重累及、皮疹全身泛发)的皮损进行组织病理学检查,对其不同部位皮损处分离的4株菌株行微生物学及分子生物学研究,并根据体外药敏试验进行药物选择。结果患者皮损处真菌学检查见大量有隔分枝的菌丝,培养及分子生物学鉴定为红色毛癣菌。不同皮损处菌株基因型鉴定为同一菌株。组织病理示鳞状上皮轻度增生,表面角化过度,真皮浅层血管周围少量淋巴细胞浸润。PAS染色表皮见少量有隔菌丝。确诊后给予口服伊曲康唑,外用特比萘芬乳膏,酮康唑洗剂洗浴等综合治疗取得良好效果。结论慢性复发性泛发型浅部真菌病,对病原菌的分离鉴定尤为重要,且应注意患者有无指/趾甲的累及,治疗不能仅针对体癣治疗,而应结合药敏试验采取综合治疗。Objective There have been a few reports on chronically recurrent and generalized superficial mycosis caused by trichophyton rubrum.This article was to investigate the cause, diagnosis and therapy of the mycosis. Methods 5 patients with chron-ically recurrent and generalized superficial mycosis caused by trichophyton rubrum were collected from June 2012 to June 2014 in our hospital.Bacterioscopic examination and cultivation were made on skin lesions of the patients.A typical patient who had 7-year course of desease with toenails seriously infected and widespread skin eruption was selected for histopathology examination on skin lesions, mi-crobiology and molecular biology study on 4 bacterial strains isolated from skin lesions in different parts, and in vitro chemosensitivity assay for drug selection.PCR （rDNA ITS sequence analysis） was performed for diagnosis and early treatment. Results Microscopic examintion on skin lesions demonstrated numerous septate, branched hyphae.Cultivation and molecular biology study identified tricho-phyton rubrum.The strain was identified as trichophyton rubrum by ITS sequence analysis and the isolated strains from different lesions were the same fungal species.Histopathology examination revealed slight hyperplasia of squamous epithelium , epidermal hyperkeratini-zation and the upper dermis presented a sparse perivascular lymphocytic infiltrate.The PAS-stain confirmed the presence of few hyphae in the horny layer.The pathogen of this case was trichophyton rubrum. A combination therapy with systemic itraconazole and topically applied terbinafine hydrochloride cream was successful.A follow-up examina-tion one year later showed no recurrence of symptoms. Conclusion The isolation and identification of pathogen is the key to the diagnosis of chronically recurrent and generalized superficial mycosis, with ad-ditional attention to all or none toenail infection.The therapy should not focus simply on the tinea corporis, while comprehensive treatment combined with chemosensitivity assay is

关 键 词：泛发型体癣 红色毛癣菌 基因型 

分 类 号：R379[医药卫生—病原生物学]