摘要:EB病毒(Epstein-Barrvirus, EBV)是一种与多种肿瘤发生相关的疱疹病毒。关于胃肠道EBV感染已有一些报道,但均未对其形态学特征进行详细的描述。目前一般认为细胞感染EBV后不形成病毒包涵体,因此难于总结其组织形态学特征。本研究旨在描述发生在免疫功能正常和免疫功能低下患者的胃肠道非淋巴瘤EBV淋巴组织增殖性疾病的病理学改变,前者主要关注慢性活动性EBV感染,而后者主要指移植后EBV感染。本研究回顾性收集了26例确诊的胃肠道EBV淋巴组织增殖性疾病的病例(其中,免疫功能正常患者8例,免疫功能低下患者18例)。我们发现免疫功能正常和免疫功能低下的病例在病理学改变上无显著性差异,均可呈轻微到严重的粘膜结构破坏伴显著的淋巴样细胞聚集。大多数病例表现为局灶性或弥漫性的淋巴细胞浸润,细胞呈小至中等的圆形,胞浆较成熟小淋巴细胞增多。可见局灶性淋巴上皮病变及核碎屑。尽管胃肠道原发的EBV淋巴组织增殖性疾病并不常见,但其死亡率较高。提高对该类疾病潜在的组织学特征的认识,并结合临床表现、影像学和/或EBV血清学检查结果,有助于对胃肠道原发性EBV感染的诊断。
关键词:EBV,胃肠道,慢性活动性EBV感染,免疫功能正常,免疫功能低下
(Am J Surg Pathol 2019;43:1253-1263)
美国外科病理学杂志中文版2020年第一期正文NO.1
(郑银丽 黄雨华 翻译 云径平 审校)
The American Journal of Surgical Pathology 中文版版权说明:
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