甘建平 朱豐林 吳斌
【關(guān)鍵詞】 近端指間關(guān)節(jié)周圍膠原沉積癥;厚皮指癥;文獻(xiàn)回顧;綜合分析
近端指間關(guān)節(jié)周圍膠原沉積癥(pachydermodactyly,PDD)是一種以近端指間關(guān)節(jié)周圍非炎性膨大為主要表現(xiàn)的良性病變。其臨床特征為對稱性、無痛性、梭形膨大,常累及兩側(cè)示指、中指、環(huán)指,少數(shù)可累及小指,好發(fā)于青少年男性。真皮層大量膠原纖維沉積是本病的病理組織學(xué)特點(diǎn)[1-2]。本病男女患病比例約為5∶1[3],目前國內(nèi)外相關(guān)文獻(xiàn)報(bào)道屢見不鮮,臨床上對其認(rèn)識度得到逐漸提升,但大都以個案報(bào)道為主。
1 病例資料
患者,男,19歲,2016年5月16日初診?;颊吲R床表現(xiàn)為雙手近端指間關(guān)節(jié)無痛性、對稱性梭形膨大,手指伸面無膨大,累及兩側(cè)示指、中指、環(huán)指?;颊卟〕?年,曾多次就診于當(dāng)?shù)啬橙揍t(yī)院骨科、疼痛科、風(fēng)濕科等,均診斷為類風(fēng)濕關(guān)節(jié)炎。雙手示指、中指、環(huán)指近端指間關(guān)節(jié)不同程度梭形膨大,無明顯疼痛、晨僵等不適,有10年不良扳手指、彈響指的習(xí)慣。實(shí)驗(yàn)室檢查:C-反應(yīng)蛋白(CRP)0.3 mg·L-1,類風(fēng)濕因子(RF)
2 IU·mL-1,紅細(xì)胞沉降率(ESR)5 mm·h-1,抗CCP抗體(-),抗鏈球菌溶血素“O”(ASO)119.6 IU·mL-1,血尿常規(guī)及肝腎功能均未見異常。皮膚組織病理學(xué)檢查:表皮增生伴角化過度,真皮層增厚伴膠原纖維增多。影像學(xué)檢查:X線片示近端指間關(guān)節(jié)周圍軟組織腫脹,未見骨質(zhì)改變。結(jié)合患者病史及實(shí)驗(yàn)室檢查,排除類風(fēng)濕關(guān)節(jié)炎的可能性,考慮為PDD,暫不予以任何治療措施,囑患者改掉扳手指及彈響指的不良習(xí)慣,保持健康心態(tài)。隨診3個月患者近端指間關(guān)節(jié)較前未見明顯變化,也無其他不適。該患者皮膚膨大增厚累及雙手近端指間關(guān)節(jié)2,3,4指,但未伸展到掌指關(guān)節(jié)區(qū),且皮膚無硬化,無家族史,故屬于PPD分型的經(jīng)典型。
2 討 論
筆者通過計(jì)算機(jī)檢索中國知網(wǎng)(CNKI)、維普(VIP)、萬方數(shù)據(jù)庫,以“近端指間關(guān)節(jié)周圍膠原沉積癥”“厚皮指癥”為關(guān)鍵詞,檢索時間自建庫到2016年11月3日,共檢索到47篇文獻(xiàn),其中2篇為關(guān)節(jié)腫脹的鑒別診斷,以“近端指間關(guān)節(jié)周圍膠原沉積癥”為關(guān)鍵詞27篇,共計(jì)128例。以“厚皮指癥”為關(guān)鍵詞20篇,共計(jì)39例。共有22篇與風(fēng)濕免疫科相關(guān),17篇與皮膚科相關(guān),2篇與影像科相關(guān),1篇與手外科相關(guān)。近5年文獻(xiàn)回顧顯示:6篇以“近端指間關(guān)節(jié)周圍膠原沉積癥”命名,共計(jì)38例;3篇以“厚皮指癥”命名,共計(jì)5例。
此外,錢捷等[4]回顧了2012年以前的國外文獻(xiàn)64篇,共94例。筆者現(xiàn)以“pachydermodactyly”為關(guān)鍵詞,檢索2012年以來發(fā)表的文獻(xiàn),篩選以個案形式報(bào)道的英文文獻(xiàn)共25篇[5-29],共計(jì)32例;10篇[5-14]來源皮膚科,共計(jì)13例;8篇[15-22]來源風(fēng)濕科,共計(jì)10例;4篇[23-26]來源手外科,共計(jì)4例;2篇[27-28]來源風(fēng)濕病會議,共計(jì)2例;
1篇[29]來源病理組織學(xué),共計(jì)3例。
1973年Bazex最早描述本病,期間使用“皮下纖維瘤”“指關(guān)節(jié)周圍墊”等名字。1975年Verbov[30]依據(jù)本病的形態(tài)學(xué)表現(xiàn),將希臘語的pachy(厚)、derma(皮)、dactylos(手指)3個詞拼出“pachydermodactyly”,而正式命名。1998年
Bardazzi等[1]依據(jù)其形態(tài)學(xué)、病因?qū)W、病理學(xué)表現(xiàn)分為以下5種不同的類型:①經(jīng)典型,多由局部創(chuàng)傷引起,并常累及多個指節(jié);②單個或局限型,僅累及單個手指;③跨關(guān)節(jié)型,皮膚膨大增厚伸展到掌指關(guān)節(jié)區(qū);④家族型;⑤與結(jié)節(jié)性硬化癥相關(guān)型。國內(nèi)葉霜等[2]于2005年首次報(bào)道本病,并按精確命名法將其譯名為“近端指間關(guān)節(jié)周圍膠原沉積癥”,馬東來等[31]于2006年將其譯名為“厚皮指癥”,并認(rèn)為是一種良性手指纖維瘤病。
綜合國內(nèi)外文獻(xiàn)[1,5-6]回顧分析,本病的病理學(xué)表現(xiàn)為表皮過度角化,真皮層大量膠原纖維沉積增厚,成纖維細(xì)胞增生不明顯,故臨床上仍傾向于命名為“近端指間關(guān)節(jié)周圍膠原沉積癥”。典型臨床表現(xiàn)為慢性無痛性近端指間關(guān)節(jié)膨大和腫脹,伴或不伴有晨僵,并且晨僵持續(xù)時間較短(10~
15 min),大多累及近端指間關(guān)節(jié),但也有遠(yuǎn)端指間關(guān)節(jié)、膝關(guān)節(jié)、踝關(guān)節(jié)等[32]受累的臨床報(bào)道。實(shí)驗(yàn)室檢查[20]:CRP、RF、ESR、抗CCP抗體、ASO、血尿常規(guī)及肝腎功能均未見異常。影像學(xué)表現(xiàn):關(guān)節(jié)DR示除有軟組織腫脹影外,關(guān)節(jié)與骨質(zhì)未見異常,關(guān)節(jié)MRI[18]示關(guān)節(jié)囊外軟組織腫脹明顯,范圍廣,軟骨無破壞,無明顯滑膜增厚。
本病發(fā)病原因及機(jī)制不詳,眾多學(xué)者認(rèn)為是反復(fù)皮膚機(jī)械損傷的外源因素和心理精神等內(nèi)源性因素共同作用的結(jié)果[2,20,31,33-35]。故有學(xué)者建議將本病作為心理和精神障礙的一種皮膚表現(xiàn)來診治[36]。
鑒于本病好發(fā)于青年男性,有人認(rèn)為可能與青春期激素水平的變化有關(guān)[37]。本病的病理組織學(xué)特點(diǎn)是真皮層大量膠原纖維沉積。臨床表現(xiàn)以近端指間關(guān)節(jié)軟組織膨大,易與其他疾病所致的近端指間關(guān)節(jié)軟組織腫脹相混淆,如幼年型慢性關(guān)節(jié)炎、幼年型類風(fēng)濕關(guān)節(jié)炎[38]、類風(fēng)濕關(guān)節(jié)炎、Thiemann's病、指節(jié)墊、假性指節(jié)墊、特發(fā)性厚皮性骨膜病等。尤其是與幼年型類風(fēng)濕關(guān)節(jié)炎相鑒別,鑒別要點(diǎn)為:①幼年型類風(fēng)濕關(guān)節(jié)炎患者除近指關(guān)節(jié)梭型腫脹外,并常累及雙手掌指關(guān)節(jié)、腕關(guān)節(jié)等,同時伴有關(guān)節(jié)疼痛,多呈對稱性腫痛;②實(shí)驗(yàn)室檢查ESR、CRP、免疫球蛋白、γ蛋白多增高,抗CCP抗體、RF陽性;③X線可有關(guān)節(jié)間隙變窄及溶骨性破壞等改變。據(jù)報(bào)道,給予外用激素治療無效,局部激素注射效果不肯定[39];外科手術(shù)可以恢復(fù)關(guān)節(jié)正常外觀,但是否存在術(shù)后復(fù)發(fā)問題,尚缺乏隨訪資料[2];給予焦慮患者抗焦慮藥物治療后關(guān)節(jié)腫脹表現(xiàn)較前好轉(zhuǎn)[40];本病呈良性經(jīng)過,預(yù)后良好,可不予任何治療措施[2-8]。并囑患者改掉扳手指及彈響指的不良習(xí)慣,保持健康快樂心態(tài)。
綜上所述,本病并非罕見,但目前尚無發(fā)病率的資料報(bào)告;最易與幼年型類風(fēng)濕關(guān)節(jié)炎相混淆,故國內(nèi)臨床醫(yī)生應(yīng)提高對其認(rèn)識;患者就診時更傾向于風(fēng)濕免疫科;命名更傾向?yàn)椤敖酥搁g關(guān)節(jié)周圍膠原沉積癥”。本病預(yù)后良好,需診斷明確,避免對患者實(shí)施不恰當(dāng)?shù)臋z查及治療。
3 參考文獻(xiàn)
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收稿日期:2016-11-23;修回日期:2017-01-07
風(fēng)濕病與關(guān)節(jié)炎2017年3期