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Enumerate types of metaplasia and give metaplasia

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ismipahmie

ismipahmie
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Metaplasia

Definition: transformation of one mature differentiated cell to another kind of the same category. It is a reversible process describing the adaptive substitution of more sensitive cell to another more resistance kind of cell to withstand the adverse environment. It is precancerous

Types and examples:

i. Epithelial metaplasia
a. Squamous metaplasia in bilharzial cystitis
b. Intestinal metaplasia of gastric mucosa in peptic ulcer

ii. Mesenchymal metaplasia
a. Ossification of necrotic muscle in localized myositis ossificans

iii. Serosal metaplasia
a) endometriosis

iv. Tumor metaplasia
A. adenoacanthoma

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