Configuration of surfaces of human cancer cells in effusions

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Abstract
Summary The surfaces of viable cells of metastatic human carcinomas of various histologic types and primary origin, suspended in pleural and ascitic fluids, were shown by scanning electron microscopy to be covered by microvilli of variable configuration and distribution. Microvilli of some cancer cells appeared biologically active since they were capable of forming extensions and anastomoses when settling on glass. The possible specificity and significance of microvilli in the light of the experimental data were discussed.