Keratosis lichenoides chronica (Q62763): Difference between revisions
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A queratose liquenóide crônica é uma dermatose inflamatória crônica liquenóide rara de adultos com características clínicas e histológicas marcantes. As típicas placas verrucosas estriadas e reticuladas que se formam no tronco são formadas pela coalescência de uma profusão de pápulas que se desenvolvem ao redor dos óstios foliculares e dos ductos écrinos. Estes últimos exibem uma dermatite de interface liquenóide com numerosos queratinócitos necróticos sob uma epiderme paraceratótica rica em neutrófilos. É tipicamente associada a uma erupção facial semelhante à dermatite seborreica. A causa é desconhecida. | |||
| description / en | description / en | ||
Keratosis lichenoides chronica is a rare chronic lichenoid inflammatory dermatosis of adults with striking clinical and histological features. The characteristic widespread striate and reticulate verrucous plaques which form on the trunk are formed by coalescence of a profusion of papules which develop around follicular and eccrine duct ostia. The latter exhibit a lichenoid interface dermatitis with numerous necrotic keratinocytes beneath a parakeratotic epidermis rich in neutrophils. It is typically associated with a seborrhoeic dermatitis-like facial rash. The cause is unknown. | |||
Revision as of 10:14, 14 August 2026
Keratosis lichenoides chronica is a rare chronic lichenoid inflammatory dermatosis of adults with striking clinical and histological features. The characteristic widespread striate and reticulate verrucous plaques which form on the trunk are formed by coalescence of a profusion of papules which develop around follicular and eccrine duct ostia. The latter exhibit a lichenoid interface dermatitis with numerous necrotic keratinocytes beneath a parakeratotic epidermis rich in neutrophils. It is typically associated with a seborrhoeic dermatitis-like facial rash. The cause is unknown.
| Language | Label | Description | Also known as |
|---|---|---|---|
| default for all languages | ID_246826221 |
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| English | Keratosis lichenoides chronica |
Keratosis lichenoides chronica is a rare chronic lichenoid inflammatory dermatosis of adults with striking clinical and histological features. The characteristic widespread striate and reticulate verrucous plaques which form on the trunk are formed by coalescence of a profusion of papules which develop around follicular and eccrine duct ostia. The latter exhibit a lichenoid interface dermatitis with numerous necrotic keratinocytes beneath a parakeratotic epidermis rich in neutrophils. It is typically associated with a seborrhoeic dermatitis-like facial rash. The cause is unknown. |
