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題 名 | Intraluminal Mucin Pool in Mucinous Gastric Adenocarcinoma: A Case Report=胃腸道中黏液性胃癌的黏液表現 |
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作 者 | 吳俊穎; 葉宏仁; 石臺平; 陳儉鏗; | 書刊名 | 中華醫學雜誌 |
卷 期 | 61:11 1998.11[民87.11] |
頁 次 | 頁673-677 |
分類號 | 415.527 |
關鍵詞 | 黏液性胃癌; 內視鏡超音波; 胃腸道中黏液湖; Endoscopic ultrasonography; Intraluminal mucin pool; Mucinous gastric carcinoma; |
語 文 | 英文(English) |
中文摘要 | 黏液性胃癌是一種少見的胃癌病理分類。其黏液含量是否如黏液性大腸直腸癌般 對預後造成不良影響,仍屬未知。以前的黏液性胃癌大都經由手術確立診斷,而本例病人則 是在手術前經由胃鏡與胃鏡超音波的特殊表現而得到診斷。胃鏡於胃體中部發現一個4cm 大小的圓形突出腫瘤,具有易脆而光亮的表面,外部披有一層厚厚的、不易被吸走的黏液。 內視鏡超音波則於胃體中部,發現一個不均質而呈高回音性的腫瘤,由黏膜層與次黏膜層長 出,且在外部有一層層的低回音性而不定形的物質。經外科手術證實其為中度分化的黏液性 胃癌。本病例中,其胃腸道黏液之內視鏡超音波表現呈低回音性,與黏膜層與次黏膜層的高 回音性黏液湖表現迥然不同。因此,於診斷胃腫瘤時,內視鏡超音波檢查不僅可用以判斷腫 瘤侵犯的深度,同時對於手術前辨別其為黏液性胃癌還是非黏液性胃癌也有所幫助。 |
英文摘要 | Mucinous gastric carcinoma is a rare pathologic subtype of gastric adenocarcinoma. Whether the mucin behaves aggressively as in mucinous colorectal carcinoma is still controversial. Most mucinous gastric carcinomas are diagnosed from surgical specimens. The mucinous gastric carcinoma in this case report was discovered preoperatively according to its characteristic presentation. An upper gastrointestinal endoscopic examination showed a round protruding tumor of greater than 4 cm in size on the mid-body of the stomach; it had an uneven, friable and shiny surface. The surface was coated with a sticky layer of mucin-like substance, which persisted even after the aspiration of the gastricjuice. Endoscopic ultrasonography (EUS) revealed a large heterogeneous hyperechoic tumor mass, originating from the mucosal and submucosal layers, on the body of the stomach. The mass was covered with a thick layer of hypoechoic amorphous substance. Hence, a mucin-producing tumor was suspected. Subsequent surgical biopsy proved the mass to be a moderately differentiated mucinous adenocarcinoma. This case illustrates the first endoscopic ultrasonographic report of an intraluminal mucin pool as a hypoechoic substance, which is quite different from the hyperechoic presentation of intramural mucin lakes. In preoperative evaluation, EUS is not only important for determining the depth of tumor invasion, but it is also useful in differentiating mucinous gastric carcinoma from nonmucinous carcinoma. |
本系統中英文摘要資訊取自各篇刊載內容。