what is metaplasia
(April 2014). Metaplasia (Greek : change in form) is the reversible replacement of one differentiated cell type with another mature differentiated cell type.The change from one type of cell to another may generally be a part of normal maturation process or caused by some sort of abnormal stimulus.ormal physiological metaplasia-such as that of the endocervix is highly desirable. The medical significance of metaplasia is that in some sites where pathological irritation is present cells may progress from metaplasia, to develop dysplasia, and then malignant neoplasia (cancer).