Dysplasia

Dysplasia

Write A Short Note On Dysplasia.
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Write Note On Dysplasia.

Answer:

Dysplasia means” disordered cellular development”.

Dysplasia definition

Dysplasia

• It is also referred to as atypical hyperplasia.
• Dysplasia occurs most often in epithelial cells.
• Causes of dysplasia include diverse cellular insults, including physical, chemical, and biological.
• Epithelial dysplasia is characterized by cellular proliferation and cytological changes.
• These changes include:
  • Increased number of layers of epithelial cells.
  • Disorderly arrangement of cells.

Epithelial dysplasia

• • Loss of basal polarity, i.e., nuclei lying away from the basement membrane.
  • Cellular and nuclear pleomorphism, i.e., altered cellular and nuclear size and shape.
  • Increased nuclear: cytoplasmic ratio.
  • Nuclear hyperchromatism, i.e., increased basophilia on staining with hematoxylin.
  • Increased mitotic activity, i.e., altered cell proliferation.
• Dysplasia occurs due to chronic irritation or prolonged inflammation.

Dysplasia progresses into carcinoma.

• The two most common examples of dysplastic changes are the Uterine cervix and the respiratory tract.