国外病例报告:系统性硬化症中的网状色素沉着过度

2023-04-28 MedSci原创 MedSci原创 发表于上海

这是一则疑难杂症病例分享,根据实验室检查、结合家族史、临床表现及病史等,最终诊断为网状色素过度沉着性系统性硬化症。

系统性硬化症(systemic sclerosis,SSc),又称硬皮病,是一种弥漫性结缔组织病,以皮肤增厚变硬为典型特征,同时伴有内脏器官受累。SSc患者典型临床表现是皮肤增厚变硬。不同患者皮肤受累程度不同。临床上将皮肤病变进展分3个阶段:(1)肿胀期(2)硬化期(3)萎缩期。

国外学者报道了一例51岁的泰国女性患者既往有1年全身皮肤色素沉着病史。

此次来诊时,该患者诉双手肿胀关节和踝关节疼痛同时合并食欲不振,一年内体重下降8公斤。患者自5年前就开始出现雷诺现象没有其他明显的全身症状。既往体健,无药物服用史及化学品暴露史家族中亦没有类似皮肤病史。

图1(源于文献)

图2(源于文献)

体格检查发现患者全身网状色素沉着过度,躯干和四肢出现硬化红斑图1、2

图3(源于文献)

此外,她还患有近端手指硬化、部分指尖存在凹陷硬化指端病和雷诺现象图3。进行甲襞毛细血管镜检查,显示少量毛细血管袢扩张,无明显弯曲。

患者实验室检查显示白细胞计数、肌酐、电解质、空腹血糖、甲状腺功能和肝功能正常。红细胞沉降率升高至40毫米/小时参考范围为0-20毫米/小时,抗核抗体ANA滴度为1:640粗斑型,类风湿因子RF阳性130IU/mL参考范围<12.5IU/mL=阴性,12.5-20.5IU/mL=临界,>20.5 IU/mL=阳性。抗着丝粒抗体ACA、抗拓扑异构酶I抗体抗Scl-70、抗dsDNA抗体、抗RNP抗体、抗心磷脂抗体、狼疮抗凝物、抗β2-糖蛋白1抗体、抗环瓜氨酸肽抗体检测均呈阴性。尿液分析、胸部X线检查、肺功能检查和上消化道镜检查结果正常。

右小腿皮肤过度色素沉着硬结的活检标本显示,基底角质细胞和广泛硬化的胶原束过度色素沉着。表层和深层网状真皮中发现一些扩张的毛细血管,没有血管炎或血管病的证据。可见由淋巴细胞、浆细胞和嗜酸性粒细胞组成的浅表和深层血管周围浸润。

结合患者手指近端硬化、全身网状色素过度沉着和泛真皮硬化的组织病理学,最终诊断为网状色素过度沉着系统性硬化

 

参考文献:

Chuamanochan Mati,Haws Andrea L,Pattanaprichakul Penvadee,Reticulate hyperpigmentation in systemic sclerosis: a case report and review of the literature.[J] .J Med Case Rep, 2015, 9: 219.

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    2023-04-29 ms2000000702445417 来自湖南省

    学习打卡

    0

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    2023-04-29 1212ad1cm87暂无昵称

    不错,学习了。

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    2023-04-29 jshbyywk2008 来自河北省

    系统性硬化症

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    2023-04-28 医鸣惊人 来自山西省

    认真学习了

    0

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