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Home > E. Pathology by systems > Skin > epidermal hyperplasia

epidermal hyperplasia

Monday 9 January 2017

See also : epidermal pseudoepitheliomatous hyperplasia

Types

- focal epidermal hyperplasia

  • focal epidermal hyperplasiawithout cytonuclear atypias
  • focal epidermal hyperplasia with cytonuclear atypias

- diffuse epidermal hyperplasia

Images

- Epidermal hyperplasia over dermatofibroma can mimic seborrheic keratosis or Becker nevus on shave

- 22 yo female x 2 mo. Dx: giant molluscum contagiosum . epidermal hyperplasia with crater containing pretty molluscum bodies (Henderson–Patterson bodies). Giant molluscum may indicate underlying immunodeficiency.

Etiology - Examples

- reactional epidermal hyperplasia

- virus-associated hyperplasia

  • warts / warty lesions

- epidermal tumors

- dermal tumors

Types

- regular epidermal hyperplasia
- dysplastic epidermal hyperplasia

See also

-  epidermal anomalies
- follicular induction
- crateriform anomalies / crateriform lesions
- squamous cell epithelial hyperplasia