阑尾杯状细胞类癌的临床病理分析

目的 探讨阑尾杯状细胞类癌（GCC）的临床病理特征、诊断标准及治疗预后.方法 分析郑州大学附属洛阳市中心医院6例GCC患者的临床病理资料.结果 6例患者平均发病年龄为48.67岁,临床上4例表现为急性阑尾炎的症状和体征,2例表现为腹部疼痛;手术方式：4例为阑尾单纯切除术,2例为阑尾切除术＋右半结肠切除术;术后平均随访30个月,5例健康生存,1例失访.大体观察阑尾无明显肿块.显微镜下观察：4例肿瘤细胞似肠腺杯状细胞,无异型性和坏死,缺乏核分裂象,2例肿瘤细胞呈圆形及多边形,中等大小,胞质丰富,富含黏液,细胞核偏于一侧,呈印戒细胞样,瘤细胞呈巢状、花环状、腺样弥漫散在排列.免疫组织化学示：Syn阳性6例,CgA阳性4例,NSE、CD56、CK7、CK20均有患者阳性,5例Ki-67≤2％,1例Ki-67为3％,6例均未发现淋巴结、肠道、卵巢转移.结论 GCC是一种少见的神经内分泌肿瘤,较经典类癌更具有侵袭性.Syn、CgA阳性为诊断所必需的,Ki-67阳性指数对肿瘤分级有指导意义.

Clinicopathological analysis on goblet cell carcinoid of the appendix

Objective To explore the clinicopathologic features,diagnostic criteria and clinical prognostic factors of Goblet cell carcinoid （GCC） of the appendix.Methods The clinical and pathological data from 6 GCC patients were analyzed including age,clinical stage,surgical procedure,outcome,macroscopic features,histological sections and immunohistochemistry.Results The median age was 49.67 years old.Clinically,4 patients presented the signs and symptoms of acute appendicitis,while 2 patients presented the signs and symptoms of abdominal pain.4 patients of them undergone the simple appendectomy,the other 2 undergone the right hemicolectomy.All patients who had undergone the operation treatment survived.One patient was lost to the follow-up.Macroscopically,no masses were found in the appendix.Microscopically,4 cases showed that the tumor cells were identical to the goblet cell normal small intestinal crypts morphologically.The atypia,necrosis and mitotic figures of neoplasm cells were absent.2 cases were composed of small,discrete acini,tubules lined by a single layer of cuboidal or columnar cell,the signet-ring cells were uniform with pattern of infiltration being nests,rosrttes,or clumps without a dintinct lumen.All GCC cases were positive to Syn,4 cases were positive to CgA,some cases expressed NSE,CD56,CK7,CK20,Ki-67 index of 5 cases was under 2 %,the other 1 was 3 %.None had lymph node metastases,intestinal metastases or ovary metastases.Conclusions GCC of appendix is a rare neoplasm,and has more aggressive behaviour than classic carcinoids.Positive expression of Syn and CgA is necessory for the diagnosis of GCC,Ki-67 index may suggest the grading of tumor.