mastocytoma of skin
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方法：分别采用免疫组化及改良甲苯胺蓝染色观察2 4例皮肤基底细胞癌PCNA表达，瘤巢间质肥大细胞数及两者相关性。
Methods: The density and characteritic of distribution of mast cells and PCNA expression from 24 skin biopsy specimen by using an immunohistochemical and toluidine blue staining technique.
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