[Mucoepidermoid carcinoma of the stomach: report of two cases]

Zhonghua Bing Li Xue Za Zhi. 2024 Sep 8;53(9):965-967. doi: 10.3760/cma.j.cn112151-20240110-00023.
[Article in Chinese]

Abstract

本文报道2例胃原发黏液表皮样癌临床病理学及免疫表型特征,并总结相关文献。例1男,61岁,胃镜发现胃体下端近胃角处一溃疡,覆污秽苔。例2男,59岁,胃镜于残胃与肠管交界处发现隆起型肿物。镜下观察:肿瘤由形态温和的中间细胞、表皮样细胞和黏液细胞构成,可见筛状腺腔/微囊结构,其内含黏液或嗜酸性分泌物,且伴有多处神经浸润。免疫组织化学结果显示:表皮样细胞及中间细胞p63和p40阳性,黏液细胞MUC5AC阳性,过碘酸雪夫染色阳性,p53为野生型,Ki-67阳性指数>60%。病理诊断为胃黏液表皮样癌。胃原发黏液表皮样癌罕见,侵袭性高,经验不足的医师对本病的诊断要点往往了解不充分,应注意与腺鳞癌、低分化鳞状细胞癌等鉴别。.

Publication types

  • Case Reports

MeSH terms

  • Carcinoma, Mucoepidermoid* / diagnosis
  • Carcinoma, Mucoepidermoid* / metabolism
  • Carcinoma, Mucoepidermoid* / pathology
  • Diagnosis, Differential
  • Humans
  • Ki-67 Antigen / metabolism
  • Male
  • Middle Aged
  • Mucin 5AC* / metabolism
  • Stomach Neoplasms* / metabolism
  • Stomach Neoplasms* / pathology
  • Tumor Suppressor Protein p53 / metabolism

Substances

  • Mucin 5AC
  • MUC5AC protein, human
  • Tumor Suppressor Protein p53
  • Ki-67 Antigen