| Flat wart | |
|---|---|
| Other names | Verruca plana |
_on_the_chin.jpg) | |
| Verruca plana (flat warts) on the chin of a middle-aged woman | |
| Specialty | Dermatology  |
Flat warts, technically known asverruca plana, are reddish-brown or flesh-colored, slightly raised, flat-surfaced, well-demarcatedpapules of 2 to 5 mm in diameter. Upon close inspection, theselesions have a surface that is "finely verrucous".[1][2] Most often, these lesions affect the hands, legs, or face, and a linear arrangement is not uncommon.[2] Athistopathology, flat warts have cells with prominentperinuclear vacuolization aroundpyknotic,basophilic, centrally located nuclei that may be located in thegranular layer.[3] These are referred to as "owl's eye cells."[3]
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