阿萨希丝孢酵母引起播散性毛孢子菌病国内首例报告  

Disseminated Trichosporonosis:The First Case Report in China

作　　者：杨蓉娅[1] 敖俊红[1] 王文岭[1] 李大伟[1] 李若瑜[2] 王端礼[2] 

机构地区：[1]北京军区总医院皮肤科,北京100700 [2]北京大学第一医院皮肤科

出　　处：《中华皮肤科杂志》2001年第5期329-332,共4页Chinese Journal of Dermatology

摘　　要：目的报道国内首见阿萨希丝孢酵母(T.Asahii)所致播散性毛孢子菌病1例。方法全面临床检查排除其他疾病;多部位皮损组织及肝穿组织活检,组织病理检查;皮损组织、口腔假膜、阴道及鼻腔分泌物、尿、粪、肝穿组织及皮损表面痂皮多次真菌培养、直接镜检证实为系统性真菌病;菌种与标准菌株对照进行培养、生化试验、菌种鉴定及DNA序列分析;临床系统抗真菌治疗观察。结果发现皮肤、肝、肾、肠道、口腔、阴道粘膜等广泛受累,组织病理发现在感染性肉芽肿损害中有大量真菌孢子。真菌学培养均为同一菌落生长。菌落呈乳白色至淡黄色,表面褶皱,暗淡,边缘有菌丝长出。镜下见大小不一的矩形关节孢子及大量圆形或卵圆形孢子,出芽或不出芽,并见分支分隔菌丝。菌种经生化试验、糖发酵试验、同化硝酸盐试验、温度试验及碳源同化试验等最终鉴定为阿萨希丝孢酵母(No.AS2.2174),DNA序列分析证实该菌与阿萨希丝孢酵母的模式菌株在核糖体D1/D2区域碱基序列完全相同。经脂质体两性霉素B联合氟康唑治疗5个月后病情显著好转,各种真菌学检查阴性。结论阿萨希丝孢酵母所致播散性毛孢子菌病为国内首见;阿萨希丝孢酵母所致皮肤、粘膜、肝、脾、肾、肠道等系统损害,范围广、病程长,且基础病变不明,实为罕见。Objective To report the first case of disseminated trichosporonosis in China.Methods A series of clinical,histopatholog ic,and mycologic studies were carried out in a 20year-old-female patien t,who had no definite underlying disease.The causative fungus was identified according to culture,biochemical t est and DNA sequencing.Results Abundant fungal spores,yeasts and h yphae were shown in the specimens tak en from infectious granulomas.The fungal c olonies in the culture of skin lesion s or crusts,liver,oral psedomembra ne,vagina,nasal cavity,urine,and sto ol were the same.The colonies exhibi ted creamy white to yellowish in colo r,rugose on the surface,and hyphae at t he periphery.Under microscopy,there were a lot of rectangular arthrospores,round or oval spores w ith or without buddings,as well as br anched and septate filaments.The isolated fungus was unanimously identified as Trichosporon asahii(No.AS 2.2174)through culture,bio-chemistry and molecular biology tests.The patient's condition was impr oved obviously after the combinatio n treatment of amphotericin B liposom e(Amphotec)and fluconazole.Conclusion The extensive and lasting systemic impairments caused by T.asahii have scarcely been reported at home a nd abroad.Combination therapy with amphotericin B and fluconazole is effective.

关 键 词：毛孢子菌属 毛孢子菌病 阿萨希丝孢酵母 诊断 治疗 

分 类 号：R756[医药卫生—皮肤病学与性病学]