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Abnormalities in Organ Development

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Abnormality
Definition
Aplasia   a developmental failure resulting in the absence of an organ or tissue  
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Hypoplasia   an incomplete development or underdevelopment of an organ or tissue, which is usually the result of a decrease in the number of cells  
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Atrophy   a wasting or diminution of size or activity of a part of the body, usually the result of an abnormal decrease in cell size  
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Hypertrophy   an increase in the size of an organ caused by an increase in the size of the cells rather than the number of cells  
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Hyperplasia   an increase in the number of cells of a body part  
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Dysplasia   any abnormal development of tissues or organs  
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Anaplasia   a change in the structure or orientation of cells characterized by the production of abnormal, undifferentiated cells  
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Created by: eellis
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