anaplasia

anaplasia /ana·pla·sia/ (-pla´zhah) dedifferentiation; loss of differentiation of cells and of their orientation to one another and to their axial framework and blood vessels, a characteristic of tumor tissue.anaplas´tic

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an·a·pla·sia (n-plzh)

n.

Reversion of cells to an immature or a less differentiated form, as occurs in most malignant tumors.

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anaplasia

[an′əplā′zhə]

Etymology: Gk, ana + plassein, to shape

a change in the structure and orientation of cells, characterized by a loss of differentiation and reversion to a more primitive form. Anaplasia is characteristic of malignancy. Compare aplasia. anaplastic, adj.

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anaplasia [an″ah-pla´zhah]

loss of differentiation of cells and their orientation to each other, a characteristic of tumor cells; called also dedifferentiation and undifferentiation.

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anaplasia (an´plā´zh),

n a regressive change in cells toward a more primitive or embryonic cell type. It is a prominent characteristic of malignancy in tumors.

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anaplasia

loss of differentiation of cells, an irreversible alteration in adult cells toward more primitive (embryonic) cell types; a characteristic of tumor cells.