3例子宫体原发性非霍奇金淋巴瘤的临床病理观察

目的 探讨3例原发于子宫体非霍奇金淋巴瘤(NHL)临床病理特点.方法 收集3例原发于子宫体NHL的临床病理资料,采用免疫组织化学方法标记肿瘤细胞,按最新WHO淋巴造血组织肿瘤分类进行组织学分型,并与子宫其他疾病进行鉴别诊断.结果 3个病例均以异常阴道排液或出血为首发症状就诊,临床及病理都误诊为子宫常见疾病.子宫标本组织病理显示:病例1肿瘤细胞表达CD3、CD56及TiA-1等抗原,且EBV病毒表达阳性,支持NK/T细胞淋巴瘤的诊断.病例2和病例3肿瘤细胞表达B细胞特异抗原标记CD20等,肿瘤细胞体积为淋巴细胞的3倍,增殖指数高,支持弥漫性大B细胞淋巴瘤的诊断.结论 3例病例镜下肿瘤细胞似淋巴细胞样,弥漫浸润子宫内膜及肌壁间,与子宫内膜间质肉瘤等难以鉴别,需借助免疫组织化学方法进行确诊及鉴别诊断.

The clinical and pathological diagnosis of three cases of uterine corpus primary NHL

Objective To discuss pathological features of three cases of uterine primary NHL(non Hodgkin′s lymphoma).Methods The clinical and pathological data of 3 cases of NHL were collected.Immunohistochemical method was used to label the tumor cells.Their histological types were classified by the latest WHO Classification of Tumors of Haematopoietic and Lymphoid Tissues,and then differential diagnosis with other uterus diseases was offered.Results Three cases were presented with abnormal vaginal bleeding or ejecting as the first symptom,which was easily misdiagnosed as common diseases of the uterus in preliminary clinical and pathological diagnosis.Histopathology of general uterus specimens demonstrated that case one expressed CD3,CD56,TiA-1 and so on,and detected EBV virus cells expression,which supported the diagnosis of NK/T cell lymphoma.Another two cases expressed B cell-specific markers(CD20) and so on,and these tumor cells volume was 3 times larger than that of lymphocyte.These tumor cells had high proliferation index and supported diffuse large B-cell lymphoma diagnosis.Conclusion The tumor cells are like lymphocytes.We infiltrate endometria and myometrium,which is difficult to identify from endometria stromal sarcoma and other tumors,and need to use immunohistochemistry(IHC) for definitive diagnosis and differential diagnosis.