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k9oerfp654
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Elliottfmqt663.raidersfanteamshop.com/wei-ai-de-zhuan-yi-he-bing-fa-zheng
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胃癌是香港最常見的惡性腫瘤之一 ,在中國其發病率居各類腫瘤的首位,每年約有17萬人死於胃癌 ,幾乎接近全部惡性腫瘤死亡人數的25%,且每年還有2萬以上新的胃癌病人確診出來 ,胃癌確實是一種嚴重威脅身體健康的疾病。胃癌可發生於任何年齡,但以40~60歲為最常見,男患者多於女,比例約為2比1。胃癌可發生於胃的任何部位,但多見於胃竇部,尤其是胃小彎側。未經治療者平均壽命約為13個月。隨著病情發展,胃的功能和全身狀況逐漸發生改變,這些癥狀常時隱時現,亦可長期存在。如上腹脹痛、鈍痛、隱痛,惡心,食欲不振,噯氣和消瘦等,少數潰瘍型(Ⅱc型和Ⅲ型)早期胃癌也可有潰瘍樣癥狀,患者會出現節律性疼痛,反酸,內科治療可緩解。胃癌轉移途徑1、直接擴散浸潤型胃癌可沿粘膜或漿膜直接向胃壁內,食管或十二指腸發展,癌腫一旦侵入漿膜,即容易向周圍鄰近器官或組織如肝,胰,脾,橫結腸,空腸,膈肌,大網膜及腹壁等浸潤,癌細胞脫落時也可種植於腹腔,盆腔,卵巢與直腸膀胱陷窩等處。2、淋巴結轉移佔胃癌轉移的70%,胃下部癌腫常轉移至幽門下,胃下及腹腔動脈旁等淋巴結,而上部癌腫常轉移至胰旁,賁門旁,胃上等淋巴結,晚期癌可能轉移至主動脈周圍及膈上淋巴結,由於腹腔淋巴結與胸導管直接交通,故可轉移至左鎖骨上淋巴結。3、血行轉移部分患者外周血中可發現癌細胞,並可通過門靜脈轉移至肝臟,並可達肺,骨,腎,腦,腦膜,脾,皮膚等處。病發癥狀消化道出血 幽門梗阻1、消化道出血 ,可出現頭暈,心悸,黑色大便,嘔吐咖啡色物。2、胃癌腹腔轉移使膽總管受壓時,可出現黃疸 ,大便成泥土色。3、如果幽門梗阻 ,可出現嘔吐,上腹部見擴張之胃型,聞及震水聲。4、癌腫穿孔致彌漫性腹膜炎 ,可出現腹肌板樣僵硬,腹部壓痛等腹膜刺激癥。5 、形成胃腸漏管,排出不被消化的食物。
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