parakeratosis

parakeratosis
Retention of nuclei in the cells of the stratum corneum of the epidermis, observed in many scaling dermatoses such as psoriasis and subacute or chronic dermatitis.
- p. pustulosa idiopathic subungual keratosis with nail deformity or pitting and with pustular or well-demarcated scaling eczematous changes of the fingertips; usually seen in young girls.
- p. scutularis a disease of the scalp marked by the formation of crusts that envelop the hairs.

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para·ker·a·to·sis .par-ə-.ker-ə-'tō-səs n, pl -to·ses -.sēz an abnormality of the horny layer of the skin resulting in a disturbance in the process of keratinization
para·ker·a·tot·ic -'tät-ik adj

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para·ker·a·to·sis (par″ə-ker″ə-toґsis) persistence of the nuclei of the keratinocytes into the stratum corneum; this is normal only in the epithelium of true mucous membranes of the mouth and vagina.

Medical dictionary. 2011.

См. также в других словарях:

  • parakeratosis — noun In pathology, retention of nuclei in the stratum corneum layer of skin …   Wiktionary

  • parakeratosis — para·keratosis …   English syllables

  • parakeratosis — …   Useful english dictionary

  • parakeratosis pustulosa — psoriasiform lesions and onycholysis of a fingernail, with erythema, scaling, and blistering of the fingertip, usually seen in children and limited to one digit …   Medical dictionary

  • parakeratosis variegata — retiform parapsoriasis …   Medical dictionary

  • inherited parakeratosis — an autosomal recessive disease of cattle in Europe and North America in which calves around one month of age develop exanthems and parakeratosis on the legs, head, and neck; growth is stunted and they may die within three months. The cause is… …   Medical dictionary

  • granular parakeratosis — a pruritic skin condition usually found in skin furrows, consisting of erythema and hyperkeratotic papules; it was first observed as a reaction to personal hygiene products, but individuals have been found with it who have not been exposed to… …   Medical dictionary

  • ruminal parakeratosis — rumenitis with acidosis and hardening and enlargement of the ruminal papillae, most commonly seen in animals fed concentrated, pelleted feed …   Medical dictionary

  • паракератоз — (parakeratosis; пара + кератоз) нарушение процесса ороговения клеток эпидермиса, характеризующееся наличием в роговом слое клеток, содержащих ядра, и отсутствием зернистого слоя …   Большой медицинский словарь

  • паракератоз скутулярный — (parakeratosis scutularis; лат. scutulum щиток; син. Унны скутулярный паракератоз) дерматоз неясной этиологии, характеризующийся паракератозом преимущественно в области суставов, где возникают концентрические наслоения желтоватых чешуек …   Большой медицинский словарь


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