组织病理学检查示肿瘤呈分叶状增生，与表皮相连，主要由向外毛根鞘分化的鳞状上皮组成，周边基底细胞排列成栅栏状。
They were mainly consisted of epithelia differentiated towards cells of the outer root sheath, and the peripheral basal cells of the tumor lobules showed palisading arrangement.
组织病理学改变主要是基底细胞样细胞增生，向毛囊及皮脂腺导管分化。
Histopathologic change showed mainly that basal cell like cells hyperplasia and the cells differentiated to hair follicle and sebaceous gland ducts.
病理分析包括癌细胞分化程度、癌组织结构类型。
Pathologically, degree of cell differentiation and the structural pattern of the tumor were identified.
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