1985年,许多作者描述了一种称为间变性大细胞淋巴瘤(anaplastic large cell lymph oma,ALCL)的新的淋巴瘤类型,其被定义为:大的、通常是紧密粘着的母细胞增生,所有瘤细胞恒表达CD30分子.除了这些共同特征,患者的细胞学和肿瘤细胞抗原决...1985年,许多作者描述了一种称为间变性大细胞淋巴瘤(anaplastic large cell lymph oma,ALCL)的新的淋巴瘤类型,其被定义为:大的、通常是紧密粘着的母细胞增生,所有瘤细胞恒表达CD30分子.除了这些共同特征,患者的细胞学和肿瘤细胞抗原决定簇,以及临床特征等,在原始描述中存在异质性,这也导致了ALCL在形态学、免疫分型和临床上的数种临床亚型分类.ALCL与经典霍奇金病(cHD)在形态学和免疫表型上的重叠也被认识.在80年代末,染色体2和5的易位被发现与ALCL正相关.所有这些发现,提出一个问题:是否形态学的、免疫表型的、临床的或遗传学的类型是同种疾病的不同亚型抑或是不同的疾病?它们与霍奇金病的关系如何?在过去的5年中,ALCL及HD在分子特征方面的研究进展显著,以上的问题如今也可以得到解答.展开更多
OBJECTIVE: To examine 10 cases with primary cutaneous CD30-positive anaplastic large cell lymphoma (ALCL), analyze their clinical manifestations and pathological and immunohistochemical features, and improve early dia...OBJECTIVE: To examine 10 cases with primary cutaneous CD30-positive anaplastic large cell lymphoma (ALCL), analyze their clinical manifestations and pathological and immunohistochemical features, and improve early diagnosis of this disease. METHODS: We studied the morphological characteristics of primary cutaneous CD30-positive ALCL using histopathological methods. Leukocyte common antigen (LCA), CD20, CD30, CD45RO, CD68, epithelial membrane antigen (EMA), cytokeratin (CK) and HMB45 antibodies were used to determine the expression of their respective antigens from routine paraffin samples of the patients. RESULTS: Ten patients (7 men and 3 women, aged 31 to 84 years) complained of subcutaneous masses or papular eruptions over their lower trunks and extremities. Histopathologically, the lesions were composed of numerous large round or oval pleomorphic cells. The cytoplasm was usually abundant, amphophilic or basophilic, and finely vacuolated. Nuclei were commonly eccentrically localized and lobated or horseshoed in shape, and multinucleated giant cells and Reed-Sternberg-like cells were seen. Nucleoli were generally multiple and large. Of the 10 patients, tumor cells displayed positive antigen expression of CD30 in all cases, positive CD45RO in 6 cases, positive CD20 in only 1 case, but negative CD45RO and CD20 expressions in 3 cases. Two patients died at 7 weeks and 3.4 years of follow-up, respectively. CONCLUSION: Our study highlights the importance of histopathologic features and positive CD30 staining for differentiation of this disease from other malignant skin tumors.展开更多
文摘1985年,许多作者描述了一种称为间变性大细胞淋巴瘤(anaplastic large cell lymph oma,ALCL)的新的淋巴瘤类型,其被定义为:大的、通常是紧密粘着的母细胞增生,所有瘤细胞恒表达CD30分子.除了这些共同特征,患者的细胞学和肿瘤细胞抗原决定簇,以及临床特征等,在原始描述中存在异质性,这也导致了ALCL在形态学、免疫分型和临床上的数种临床亚型分类.ALCL与经典霍奇金病(cHD)在形态学和免疫表型上的重叠也被认识.在80年代末,染色体2和5的易位被发现与ALCL正相关.所有这些发现,提出一个问题:是否形态学的、免疫表型的、临床的或遗传学的类型是同种疾病的不同亚型抑或是不同的疾病?它们与霍奇金病的关系如何?在过去的5年中,ALCL及HD在分子特征方面的研究进展显著,以上的问题如今也可以得到解答.
文摘OBJECTIVE: To examine 10 cases with primary cutaneous CD30-positive anaplastic large cell lymphoma (ALCL), analyze their clinical manifestations and pathological and immunohistochemical features, and improve early diagnosis of this disease. METHODS: We studied the morphological characteristics of primary cutaneous CD30-positive ALCL using histopathological methods. Leukocyte common antigen (LCA), CD20, CD30, CD45RO, CD68, epithelial membrane antigen (EMA), cytokeratin (CK) and HMB45 antibodies were used to determine the expression of their respective antigens from routine paraffin samples of the patients. RESULTS: Ten patients (7 men and 3 women, aged 31 to 84 years) complained of subcutaneous masses or papular eruptions over their lower trunks and extremities. Histopathologically, the lesions were composed of numerous large round or oval pleomorphic cells. The cytoplasm was usually abundant, amphophilic or basophilic, and finely vacuolated. Nuclei were commonly eccentrically localized and lobated or horseshoed in shape, and multinucleated giant cells and Reed-Sternberg-like cells were seen. Nucleoli were generally multiple and large. Of the 10 patients, tumor cells displayed positive antigen expression of CD30 in all cases, positive CD45RO in 6 cases, positive CD20 in only 1 case, but negative CD45RO and CD20 expressions in 3 cases. Two patients died at 7 weeks and 3.4 years of follow-up, respectively. CONCLUSION: Our study highlights the importance of histopathologic features and positive CD30 staining for differentiation of this disease from other malignant skin tumors.
