Test 3 Flashcards
What is defined as when normal epithelium becomes bigger/larger?
Hypertrophy
What is defined as an increase in the number of cells?
Hyperplasia
What is defined as the conversion from one type of cell to another type of cell?
Metaplasia
What is this?
Epithelial hyperkeratosis
What is this?
Epithelial acanthosis
What is defined as a premalignant condition that indicates disordered growth? The condition may appear as erythroplakia, leukoplakia or speckled leukoplakia.
Epithelial dysplasia
True or False: lesions that exhibit microscopic dysplasia frequently precede squamous cell carcinoma.
True
What condition involves the cell proliferating instead of resting?
Genetic mutation
What condition involves the cells looking normal but producing too much and after years another mutation occurs?
Hyperplasia
What condition involves the cells being abnormal in shape and orientation, after time a mutation occurs that affects cell behaviour?
Dysplasia
What condition involves the cells becoming more abnormal in growth and appearance and the tumor has not yet broken through any boundaries between tissues?
Carcinoma in situ
What is this?
Leukoplakia
What are most leukoplakias due to?
Hyperkeratosis or a combination of epithelial hyperplasia and hyperkeratosis
Are leukoplakias considered premalignant?
No
Leukoplakia on the floor of the mouth, ventrolateral tongue, soft palate and lip are more likely to represent
Epithelial dysplasia
Any lesion diagnosed as epithelial dysplasia should be
Completely removed
What is this?
Leukoplakia
What is an oral mucosal lesion that appears as a smooth, red patch or a granular red and velvety patch?
Erythroplakia
Where do most cases of erythroplakia occur?
Floor on the mouth
Tongue
Soft palate
True or False: Erythroplakia is more common than leukoplakia and is considered a less serious clinical finding.
False. Erythroplakia is less common than leukoplakia and is considered a more serious clinical finding.
What is this?
Erythroplakia
What is this?
Leukoplakia
What is this?
Erythroplakia
What is this?
Erythroplakia