目的探讨伴肠母细胞分化的结直肠腺癌(colorectal adenocarcinoma with enteroblastic differentiation,CAED)临床病理学特征。方法收集复旦大学附属肿瘤医院2017年1月至2023年8月8例CAED,对其组织病理学、免疫组织化学及分子特征和预...目的探讨伴肠母细胞分化的结直肠腺癌(colorectal adenocarcinoma with enteroblastic differentiation,CAED)临床病理学特征。方法收集复旦大学附属肿瘤医院2017年1月至2023年8月8例CAED,对其组织病理学、免疫组织化学及分子特征和预后进行分析,并进行文献复习。结果8例CAED中,男性6例,女性2例,平均年龄为58岁(29~77岁,中位年龄61.5岁),其中5例术前血清甲胎蛋白升高(14.0~286.6μg/L)。4例发生于结肠,4例发生于直肠。2例临床分期为Ⅳ期,初诊时已发生远处转移(1例初诊时发现肝脏转移,1例初诊时发现肺、骨和全身多发淋巴结转移),其余6例为局部进展期(Ⅱ~Ⅲ期),3例术后发生远处转移(肝脏1例、肺1例、腹膜1例),2例患者分别于术后9、24个月死亡。肿瘤由不同比例的肠母细胞分化的腺癌成分(30%~100%)和经典管状腺癌成分构成,前者形态类似胚胎发育时期肠黏膜上皮:立方状或柱状肿瘤细胞排列成管状、乳头状、筛状或实性巢状,胞质透亮。免疫组织化学染色结果显示,肿瘤细胞至少表达一种癌胚蛋白(SALL4、Glypican-3、甲胎蛋白)。3例肿瘤细胞伴鳞状分化。与原发灶相比,转移灶中CAED成分及鳞状分化成分所占比例均增高。原发灶和/或转移灶行KRAS、NRAS、BRAF基因突变检测示:5例为野生型,2例显示KRAS基因第2号外显子(G13D)突变。结论CAED是一种罕见的结直肠恶性肿瘤,恶性程度较高,准确的病理诊断具有预后预测价值。肠母细胞分化的组织学特征,血清甲胎蛋白的增高及癌胚蛋白的表达对于该肿瘤的诊断具有重要的价值。展开更多
目的探讨胃腺癌伴肠母细胞分化(gastric adenocarcinoma with enteroblastic differentiation,GAED)的临床病理学特征及FAT1表达的意义。方法采用免疫组化EnVision两步法检测306例胃腺癌中SALL4、Glypican-3、AFP的表达,共诊断42例GAED...目的探讨胃腺癌伴肠母细胞分化(gastric adenocarcinoma with enteroblastic differentiation,GAED)的临床病理学特征及FAT1表达的意义。方法采用免疫组化EnVision两步法检测306例胃腺癌中SALL4、Glypican-3、AFP的表达,共诊断42例GAED,分析其临床病理学特征。免疫组化EnVision两步法检测GAED中CD10、CDX2、MUC-2和FAT1的表达,分析各标志物与GAED临床病理学特征的关系。结果GAED与同期普通型胃癌相比,具有更高的淋巴管血管侵犯和转移率,具有多种组织学形态。GAED不同程度表达SALL4、Glypican-3和AFP,三种标志物表达与肿瘤大小、T分期及血管、淋巴管侵犯具有相关性(P<0.05)。GAED中CDX-2高表达,FAT1表达明显降低(P<0.05)。结论GAED是一类侵袭性高、预后差的肿瘤,SALL4和Glypican-3联合检测可以提高诊断率。FAT1在GAED中发挥抑癌基因作用。GAED和肝样腺癌在形态学、免疫表型上有较大重叠性,应规范此类肿瘤的名称。展开更多
AIM To investigate clinicopathological features of early stage gastric cancer with enteroblastic differentiation(GCED).METHODS We retrospectively investigated data on 6 cases of early stage GCED and 186 cases of early...AIM To investigate clinicopathological features of early stage gastric cancer with enteroblastic differentiation(GCED).METHODS We retrospectively investigated data on 6 cases of early stage GCED and 186 cases of early stage conventional gastric cancer(CGC: well or moderately differentiated adenocarcinoma) who underwent endoscopic submucosal dissection or endoscopic mucosal resection from September 2011 to February 2015 in our hospital.GCED was defined as a tumor having a primitive intestine-like structure composed of cuboidal or columnar cells with clear cytoplasm and immunohistochemical positivity for either alpha-fetoprotein, Glypican 3 or SALL4. The following were compared between GCED and CGC: age, gender, location and size of tumor, macroscopic type, ulceration, depth of invasion, lymphatic and venous invasion, positive horizontal and vertical margin, curative resection rate.RESULTS Six cases(5 males, 1 female; mean age 75.7 years; 6 lesions) of early gastric cancer with a GCED component and 186 cases(139 males, 47 females; mean age 72.7 years; 209 lesions) of early stage CGC were investigated. Mean tumor diameters were similar but rates of submucosal invasion, lymphatic invasion, venous invasion, and non-curative resection were higher in GCED than CGC(66.6% vs 11.4%, 33.3% vs 2.3%, 66.6% vs 0.4%, 83.3% vs 11% respectively, P < 0.01). Deep submucosal invasion was not revealed endoscopically or by preoperative biopsy. Histologically, in GCED the superficial mucosal layer was covered with a CGC component. The GCED component tended to exist in the deeper part of the mucosa to the submucosa by lymphatic and/or venous invasion, without severe stromal reaction. In addition, Glypican 3 was the most sensitive marker for GCED(positivity, 83.3%), immunohistochemically.CONCLUSION Even in the early stage GCED has high malignant potential, and preoperative diagnosis is considered difficult. Endoscopists and pathologists should know the clinicopathological features of this highly malignant type of cancer.展开更多
目的:伴有肠母细胞分化的胃癌(gastric cancer with enteroblastic differentiation,GCED)是一种新的胃癌类型。该肿瘤表达胚胎干细胞标志物为SALL4以及癌胚蛋白(AFP和GPC3)等。本研究旨在探讨GCED的临床病理学特征及其分子表型。方法:...目的:伴有肠母细胞分化的胃癌(gastric cancer with enteroblastic differentiation,GCED)是一种新的胃癌类型。该肿瘤表达胚胎干细胞标志物为SALL4以及癌胚蛋白(AFP和GPC3)等。本研究旨在探讨GCED的临床病理学特征及其分子表型。方法:回顾性分析2013年3月至2017年3月浙江大学医学院附属第一医院就诊的胃部肠型腺癌337例,其中8例可诊断为GCED,患者均为老年人,其中男性6例,女性2例,年龄68～83岁,平均年龄为76.6岁。2例治疗前血清AFP≥200μg/L。收集相关临床资料,根据其组织病理学形态,采用免疫组织化学法分析免疫学表型,应用逆转录PCR(RT-PCR)方法检测SALL4基因。结果:显微镜下观察,所有病例均具有原始的肠样结构,由立方或柱状细胞组成,胞质透明、清晰,免疫组织化学法检测显示AFP和GPC3阳性,或SALL4阳性。RT-PCR检测结果显示SALL4基因mRNA的表达水平显著增高。随访1～5年,其中5例出现肝及其他脏器转移,2例死亡,1例无瘤生存。结论:GCED是一种罕见的侵袭性肠型腺癌,预后比普通肠型腺癌差,按照普通肠型腺癌的治疗方法效果甚微。其组织学上具有特征性的改变,熟悉其瘤谱及基因学特征有助于鉴别和诊断,有助于对原始标记物,制定如SALL4的靶向治疗方案。展开更多
目的探讨伴肠母细胞分化的胃腺癌(gastric adenocarcinoma with enteroblastic differentiation,GAED)合并神经内分泌小细胞癌的临床病理特征、免疫表型及预后。方法应用HE染色、免疫组织化学染色对我院收集的1例伴肠母细胞分化的胃腺...目的探讨伴肠母细胞分化的胃腺癌(gastric adenocarcinoma with enteroblastic differentiation,GAED)合并神经内分泌小细胞癌的临床病理特征、免疫表型及预后。方法应用HE染色、免疫组织化学染色对我院收集的1例伴肠母细胞分化的胃腺癌合并神经内分泌小细胞癌进行临床病理分析,并进行相关的国内外文献复习,探讨其临床病理特征及预后。结果胃大部切除标本镜下见肿瘤主要由两种成分组成:第一种成分占整个肿瘤的90%,主要由腺样、乳头状、筛状结构组成,部分呈原肠样;第二种成分占整个肿瘤的10%,小圆肿瘤细胞呈弥漫失粘附生长。弥漫生长区和腺样结构区相互交叉生长。免疫组织化学染色显示伴肠母细胞分化的腺癌成分阳性表达SALL4、MUC2、MUC6、CDX-2、villin、glypican 3、AFP,神经内分泌小细胞癌阳性表达Syn、CgA、CD56。结论伴肠母细胞分化的胃腺癌合并神经内分泌小细胞癌极其罕见,预后极差,应充分认识其临床病理特点,避免低估其恶性程度。展开更多
文摘目的探讨伴肠母细胞分化的结直肠腺癌(colorectal adenocarcinoma with enteroblastic differentiation,CAED)临床病理学特征。方法收集复旦大学附属肿瘤医院2017年1月至2023年8月8例CAED,对其组织病理学、免疫组织化学及分子特征和预后进行分析,并进行文献复习。结果8例CAED中,男性6例,女性2例,平均年龄为58岁(29~77岁,中位年龄61.5岁),其中5例术前血清甲胎蛋白升高(14.0~286.6μg/L)。4例发生于结肠,4例发生于直肠。2例临床分期为Ⅳ期,初诊时已发生远处转移(1例初诊时发现肝脏转移,1例初诊时发现肺、骨和全身多发淋巴结转移),其余6例为局部进展期(Ⅱ~Ⅲ期),3例术后发生远处转移(肝脏1例、肺1例、腹膜1例),2例患者分别于术后9、24个月死亡。肿瘤由不同比例的肠母细胞分化的腺癌成分(30%~100%)和经典管状腺癌成分构成,前者形态类似胚胎发育时期肠黏膜上皮:立方状或柱状肿瘤细胞排列成管状、乳头状、筛状或实性巢状,胞质透亮。免疫组织化学染色结果显示,肿瘤细胞至少表达一种癌胚蛋白(SALL4、Glypican-3、甲胎蛋白)。3例肿瘤细胞伴鳞状分化。与原发灶相比,转移灶中CAED成分及鳞状分化成分所占比例均增高。原发灶和/或转移灶行KRAS、NRAS、BRAF基因突变检测示:5例为野生型,2例显示KRAS基因第2号外显子(G13D)突变。结论CAED是一种罕见的结直肠恶性肿瘤,恶性程度较高,准确的病理诊断具有预后预测价值。肠母细胞分化的组织学特征,血清甲胎蛋白的增高及癌胚蛋白的表达对于该肿瘤的诊断具有重要的价值。
文摘目的探讨胃腺癌伴肠母细胞分化(gastric adenocarcinoma with enteroblastic differentiation,GAED)的临床病理学特征及FAT1表达的意义。方法采用免疫组化EnVision两步法检测306例胃腺癌中SALL4、Glypican-3、AFP的表达,共诊断42例GAED,分析其临床病理学特征。免疫组化EnVision两步法检测GAED中CD10、CDX2、MUC-2和FAT1的表达,分析各标志物与GAED临床病理学特征的关系。结果GAED与同期普通型胃癌相比,具有更高的淋巴管血管侵犯和转移率,具有多种组织学形态。GAED不同程度表达SALL4、Glypican-3和AFP,三种标志物表达与肿瘤大小、T分期及血管、淋巴管侵犯具有相关性(P<0.05)。GAED中CDX-2高表达,FAT1表达明显降低(P<0.05)。结论GAED是一类侵袭性高、预后差的肿瘤,SALL4和Glypican-3联合检测可以提高诊断率。FAT1在GAED中发挥抑癌基因作用。GAED和肝样腺癌在形态学、免疫表型上有较大重叠性,应规范此类肿瘤的名称。
文摘AIM To investigate clinicopathological features of early stage gastric cancer with enteroblastic differentiation(GCED).METHODS We retrospectively investigated data on 6 cases of early stage GCED and 186 cases of early stage conventional gastric cancer(CGC: well or moderately differentiated adenocarcinoma) who underwent endoscopic submucosal dissection or endoscopic mucosal resection from September 2011 to February 2015 in our hospital.GCED was defined as a tumor having a primitive intestine-like structure composed of cuboidal or columnar cells with clear cytoplasm and immunohistochemical positivity for either alpha-fetoprotein, Glypican 3 or SALL4. The following were compared between GCED and CGC: age, gender, location and size of tumor, macroscopic type, ulceration, depth of invasion, lymphatic and venous invasion, positive horizontal and vertical margin, curative resection rate.RESULTS Six cases(5 males, 1 female; mean age 75.7 years; 6 lesions) of early gastric cancer with a GCED component and 186 cases(139 males, 47 females; mean age 72.7 years; 209 lesions) of early stage CGC were investigated. Mean tumor diameters were similar but rates of submucosal invasion, lymphatic invasion, venous invasion, and non-curative resection were higher in GCED than CGC(66.6% vs 11.4%, 33.3% vs 2.3%, 66.6% vs 0.4%, 83.3% vs 11% respectively, P < 0.01). Deep submucosal invasion was not revealed endoscopically or by preoperative biopsy. Histologically, in GCED the superficial mucosal layer was covered with a CGC component. The GCED component tended to exist in the deeper part of the mucosa to the submucosa by lymphatic and/or venous invasion, without severe stromal reaction. In addition, Glypican 3 was the most sensitive marker for GCED(positivity, 83.3%), immunohistochemically.CONCLUSION Even in the early stage GCED has high malignant potential, and preoperative diagnosis is considered difficult. Endoscopists and pathologists should know the clinicopathological features of this highly malignant type of cancer.
文摘目的:伴有肠母细胞分化的胃癌(gastric cancer with enteroblastic differentiation,GCED)是一种新的胃癌类型。该肿瘤表达胚胎干细胞标志物为SALL4以及癌胚蛋白(AFP和GPC3)等。本研究旨在探讨GCED的临床病理学特征及其分子表型。方法:回顾性分析2013年3月至2017年3月浙江大学医学院附属第一医院就诊的胃部肠型腺癌337例,其中8例可诊断为GCED,患者均为老年人,其中男性6例,女性2例,年龄68～83岁,平均年龄为76.6岁。2例治疗前血清AFP≥200μg/L。收集相关临床资料,根据其组织病理学形态,采用免疫组织化学法分析免疫学表型,应用逆转录PCR(RT-PCR)方法检测SALL4基因。结果:显微镜下观察,所有病例均具有原始的肠样结构,由立方或柱状细胞组成,胞质透明、清晰,免疫组织化学法检测显示AFP和GPC3阳性,或SALL4阳性。RT-PCR检测结果显示SALL4基因mRNA的表达水平显著增高。随访1～5年,其中5例出现肝及其他脏器转移,2例死亡,1例无瘤生存。结论:GCED是一种罕见的侵袭性肠型腺癌,预后比普通肠型腺癌差,按照普通肠型腺癌的治疗方法效果甚微。其组织学上具有特征性的改变,熟悉其瘤谱及基因学特征有助于鉴别和诊断,有助于对原始标记物,制定如SALL4的靶向治疗方案。
