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.
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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.