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
anaplasia
anaplasia (an´
plā´zh),
an·a·pla·sia ( n  -pl  zh)n. Reversion of cells to an immature or a less differentiated form, as occurs in most malignant tumors. |
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.
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.
anaplasia
loss of differentiation of cells, an irreversible alteration in adult cells toward more primitive (embryonic) cell types; a characteristic of tumor cells.
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