oral hairy leukoplakia

Hairy leukoplakia is a white patch on the side of the tongue with a corrugated or hairy appearance. Hairy leukoplakia is seen in severe defects of immunity, particularly in HIV infection. The cause of this condition is an opportunistic infection by the Epstein-Barr virus. Oral hairy leukoplakia is not associated with any malignant potential.The condition does not cause any other symptoms and does not require any treatment. If treatment is required, acyclovir is used.
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Oral hairy leukoplakia, n a filamentous, white plaque found on the lateral borders of the tongue that can spread across the entire dorsum of the [more]Oral hairy leukoplakia - Community and Resources

a condition believed to be caused by the Epstein-Barr virus characterized by white, raised, usually painless lesions on the sides of the tongue and/or elsewhere in the mouth.

A white-colored, hairy, or ribbed patch that appears on the side of the tongue and inside the cheeks. It develops mainly in people with weakened immune systems, including people with HIV. It is caused by Epstein-Barr virus (EBV), a member of the herpesvirus family.
  

A whitish lesion that appears on the side of the tongue and inside cheeks. The lesion appears raised, with a ribbed or "hairy" surface. OHL occurs mainly in persons with declining immunity and may be caused by Epstein-Barr virus<!-- (see) --> infection. OHL was not observed before the HIV epidemic.