張德春 賴景奎 強(qiáng)文勝 熊昌久 曾鵬 張鵬 Shah Ram Babu 王維國(guó) 田伯樂
·病例報(bào)告·
胰腺部位的胃腸道外間質(zhì)腫瘤一例
張德春 賴景奎 強(qiáng)文勝 熊昌久 曾鵬 張鵬 Shah Ram Babu 王維國(guó) 田伯樂
患者女,55歲,因“上腹痛4 d”入院,不伴黃疸,無消化道出血史,否認(rèn)胰腺炎病史。入院時(shí)體檢:上腹部深壓痛,無明顯反跳痛及肌緊張。彩超和上腹部增強(qiáng)CT提示胰頭占位,膽囊結(jié)石, 慢性膽囊炎。CA19-9等腫瘤標(biāo)志物、肝功能、血淀粉酶等檢查均正常。初步診斷為:胰頭占位,腫瘤?;膽囊結(jié)石,慢性膽囊炎。行胰十二指腸切除術(shù),術(shù)中見胰頭部5 cm×4 cm×3 cm大小包塊,邊界清楚,包膜完整,與十二指腸有間隙,周圍未見腫大淋巴結(jié),膽囊內(nèi)捫及結(jié)石,腹盆腔其余器官未見異常。先切取部分組織送術(shù)中快速冷凍活檢,報(bào)告“胰頭梭形細(xì)胞腫瘤,提示胃腸外間質(zhì)瘤可能”。遂行包含腫瘤的胰頭切除、胰腸Roux-en-Y吻合術(shù),膽囊切除術(shù)。術(shù)后病檢證實(shí)胰頭部的胃腸道外間質(zhì)腫瘤(extra-gastrointestinal stromal tumor, E-GIST),免疫組化顯示CD117(+)、CD34(+)、DOG1(+)。術(shù)后恢復(fù)順利,第7天康復(fù)出院。由于經(jīng)濟(jì)原因未能服用格列衛(wèi),至今已隨訪半年無復(fù)發(fā)。
討論胃腸道間質(zhì)腫瘤臨床上并不罕見,絕大多數(shù)發(fā)生于胃、小腸等消化道部位,發(fā)生于胃腸道外的不到10%。臨床上常表現(xiàn)為腹痛、消化道出血或腹部包塊。E-GIST可發(fā)生于大網(wǎng)膜、橫結(jié)腸系膜、膈肌、子宮,甚至陰囊和胸膜等罕見部位。從2004年至今,全世界共報(bào)道了13例胰腺的E-GIST[1-12]。胰腺的E-GIST非常罕見,絕大多數(shù)患者沒有任何癥狀或無特征性的臨床表現(xiàn),多在體檢時(shí)發(fā)現(xiàn)。本例患者因腹痛就診,檢查中發(fā)現(xiàn)胰腺占位,但根本沒有考慮到E-GIST。文獻(xiàn)中有4名經(jīng)皮細(xì)針穿刺活檢得到確診[6,8,9,11],但我們認(rèn)為術(shù)前穿刺活檢不宜提倡,因有造成腫瘤破裂、種植的可能。胰腺部位出現(xiàn)邊界清楚的包塊、無明顯的臨床癥狀、雖然在胰頭也不伴黃疸、或包塊較大無惡變質(zhì)、CA19-9等腫瘤標(biāo)志物不高等,我們認(rèn)為有提示E-GIST的可能。
手術(shù)切除是治療胰腺E-GIST的最有效手段,局部切除應(yīng)為首選術(shù)式,多數(shù)不需要行區(qū)域淋巴結(jié)清掃。文獻(xiàn)報(bào)道的術(shù)式有胰十二指腸切除術(shù)(含保留幽門的胰十二指腸切除術(shù))、胰體尾切除+脾切除術(shù)(含腹腔鏡操作)、胰腺部分切除術(shù)等,術(shù)后預(yù)后較好,有術(shù)后5年半無復(fù)發(fā)的報(bào)道。本例患者病變?cè)谝阮^,故只行胰頭切除術(shù),術(shù)后無并發(fā)癥發(fā)生,隨訪半年無復(fù)發(fā),是文獻(xiàn)報(bào)道中第1例行胰頭切除術(shù)胰頭部E-GIST的病例。
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10.3760/cma.j.issn.1674-1935.2012.03.025
610000 成都,彭州市人民醫(yī)院肝膽外科(張德春、賴景奎、強(qiáng)文勝、熊昌久、曾鵬、張鵬);四川大學(xué)華西醫(yī)院肝膽胰外科(Shah Ram Babu、王維國(guó)、田伯樂)
田伯樂, Email: bo-le@medmail.com.cn
2011-11-30)
(本文編輯:呂芳萍)