|Clinical Guide > Oral Health > Oral Warts|
Guide for HIV/AIDS Clinical Care, HRSA HIV/AIDS Bureau
Oral warts are caused by human papillomavirus (HPV) and may appear anywhere within the oral cavity or on the lips. They occur more frequently and more extensively in people with HIV infection than in those with normal immune function, especially in patients with advancing immune suppression (CD4 counts of <200-300 cells/µL). Oral warts may be refractory to therapy. The frequency of oral warts may increase, at least temporarily, in patients treated with antiretroviral therapy.
It should be noted that HPV infection is strongly associated with oropharyngeal cancer among subjects with or without the established risk factors of tobacco and alcohol use, although oral warts normally are not caused by the HPV types that are associated with oncogenic changes. One analysis of stored samples suggests that the percentage of all oropharyngeal cancers that are HPV-positive has increased from about 20% to 60% since about 1980. Researchers also have reported that HPV-related oral cancers were among the most responsive to chemotherapy and radiation.
The patient notices raised lesions in the mouth or on the lips. Warts are not painful unless they have been traumatized.
Examine the oral cavity carefully for abnormalities. Wart lesions may vary in appearance from smooth, small, and slightly raised lesions to cauliflower-like or spiked masses with prominent folds or projections. They may be single or multiple.
Review recent CD4 counts. In patients with oral warts, the CD4 count usually is <300 cells/µL.
A partial differential diagnosis includes: squamous cell carcinoma, lichen planus, and traumatic hyperkeratinized areas resulting from cheek biting or tongue thrusting.
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