Leukoplakia cannot be diagnosed clinically as a specific disease; therefore, it must often be examined in a laboratory setting. When examined microscopically, leukoplakia may reveal the following except one. Which is the exception?

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A hemangioma is a benign proliferation of capillaries. Early tumors of squamous cell carcinoma may reveal a leukoplakia appearance. When examined microscopically, a leukoplakia may show epithelial dysplasia in approximately 5% to 25% of cases. The laboratory results of a leukoplakia biopsy may also reveal a premalignant condition.

Leukoplakia Cannot Be Diagnosed Clinically as a Specific Disease; Therefore