Smallcellcarcinomas usually do not show large prominent nucleoli, whereas melanomas often do, accompanied by occasional intranuclear pseudoinclusions.
小细胞癌常无明显的大核仁（而恶性黑色素瘤常有），偶尔伴有核内假包涵体。
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Objective: To study the expression of KAI1/CD82 in non-smallcell lung carcinomas (NSCLC) and explore the mechanism of invasion and metastasis of tumor cell.
Stem-cell turnover means, for example, that tumours of the large intestine are commoner than those of the small one, while basal-cellcarcinomas in the skin are commoner than melanomas.