Proliferative Verrucous Leukoplakia
Also written as: PVL — Proliferative Verrucous Leukoplakia
An aggressive, multifocal form of oral leukoplakia with a high rate of malignant transformation, characterised by progressive spread, verrucous surface change, and frequent recurrence after treatment.
Full Definition
Proliferative verrucous leukoplakia (PVL) is a distinct, clinically defined entity separate from conventional leukoplakia, characterised by its multifocal nature, slow but relentless progression, marked tendency to recur after excision, and very high rates of transformation to verrucous carcinoma or squamous cell carcinoma. It predominantly affects older women with no obvious risk factor exposure. Histological appearances range from simple keratosis to verrucous hyperplasia to carcinoma within the same patient over time. Editors should ensure that PVL is not used interchangeably with leukoplakia, which it superficially resembles at early stages; the multifocal, progressive nature is the defining editorial distinction.
Usage
Usage note: PVL is a clinical diagnosis and should not be reduced to 'leukoplakia' in summaries. Editors must preserve the qualifier 'proliferative verrucous' as it signals a distinct prognosis and management pathway.
In Context
- "Over a six-year follow-up period, the proliferative verrucous leukoplakia had extended to involve the contralateral buccal mucosa." — Longitudinal case series
- "PVL carries a significantly higher malignant transformation rate than conventional homogeneous leukoplakia." — Systematic review introduction