Oral Cavity Premalignant Lesions Lecture

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16 Questions

What term describes the increase in the size of the prickle cell layer due to an increase in the number of its cells?

Acanthosis

Which term refers to the condition characterized by an increase in the risk of cancer but without the evidence of epithelial dysplasia?

Precancerous condition

Which condition is characterized by the reversion of cells to a more undifferentiated form?

Anaplasia

What term refers to the alteration of tissue in which cancer is more likely to occur, characterized by the presence of epithelial dysplasia?

Premalignant lesion

Which term describes the change of one type of cell to another type of the same category?

Metaplasia

What term refers to the increase in the thickness of the keratin layer, which may be parakeratinized or orthokeratinized?

Hyperkeratosis

Which term denotes malignancy or premalignancy in microscopic examination?

Epithelial dysplasia

What is the grading criteria for dysplasia that describes the presence of dysplastic cells extending to the lateral third of the epithelium?

Grade I

Which factor is associated with a greater risk of malignant change in epithelial dysplasia?

Erythroplakia within a leukoplakia

What is the term used to describe the abnormal proliferation of basal cells, resulting in the presence of more than one basal layer?

Basilar hyperplasia

What is the term for the division of nucleus without division of cytoplasm?

Poikilokaryonosis

What is the term for the presence of more than one basal layer in oral epithelium?

Basilar hyperplasia

Which criteria involves abnormal mitosis occurring in superficial layers of epithelium with increased rate and abnormal pattern?

Abnormal mitosis

What is the term for the appearance of bizzare shaped nucleus in epithelial cells?

Dyskeratosis

What is essential for mitosis and contains nucleolar organizer region?

Large prominent nucleoli

Which term refers to the aggregates of epithelial cells, and undergo keratinization as keratin pearls?

Formation of cell nests & keratin pearl

This lecture covers the topic of premalignant lesions in the oral cavity, discussing the transformation of benign conditions into malignant ones, the characteristics of precancerous conditions, and the presence of epithelial dysplasia. It also delves into the increased risk of cancer associated with these conditions.

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