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acanthomas

Friday 12 October 2012

Definition: Acanthomas are benign tumors of epidermal keratinocytes

The proliferating cells may show normal epidermoid keratinization or a wide range of aberrant keratinization, including epidermolytic hyperkeratosis (epidermolytic acanthoma), dyskeratosis with acantholysis (warty dyskeratoma), or acantholysis alone (acantholytic acanthoma).

Keratoacanthomas are not usually considered in this category, although there is no logical reason for their exclusion.

Images

- Solitary Vulval nodule: epidermolytic acanthoma

Types

- clear cell acanthoma
- epidermolytic acanthoma
- warty dyskeratoma
- acantholytic acanthoma
- seborrheic keratosis
- dermatosis papulosa nigra
- melanoacanthoma
- clear cell papulosis
- large cell acanthoma

See also

- epidermal tumors
- epidermal lesions
- epidermal anomalies