| PLEVA | pityriasis lichenoides et varioliformis acuta |
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| PLEVA | Pityriasis lichenoides et varioliformis acuta |
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| neurodermatitis | <dermatology, pathology> An extremely variable eczematous dermatosis presumed to be a cutaneous response to prolonged vigorous scratching, rubbing or pinching to relieve intense pruritus, having the potential to produce polymorphic lesions at the same or different times and varying in severity, course and morphologic expression in different individuals. It is believed by some authorities to be a psychogenic disorder. The term is also used to refer to lichen simplex chronicus (circumscribed neurodermatosis) and sometimes to atopic dermatitis (disseminated neurodermatosis). (04 Mar 1998) |
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| parapsoriasis lichenoides | A rare condition that simulates chronic radiodermatitis in appearance; may eventuate as mycosis fungoides. Synonym: parakeratosis variegata, parapsoriasis lichenoides. Poikiloderma of Civatte, reticulated pigmentation and telangiectasia of the sides of the cheeks and neck; common in middle-aged women. Synonym: Civatte's disease. (05 Mar 2000) |
| parapsoriasis lichenoides et varioliformis acuta | pityriasis lichenoides et varioliformis acuta |
| pityriasis lichenoides | A subgroup of parapsoriasis itself divided into acute and chronic forms. The acute form is characterised by the abrupt onset of a generalised, reddish-brown, maculopapular eruption. Lesions may be vesicular, haemorrhagic, crusted, or necrotic. Histologically the disease is characterised by epidermal necrolysis. The chronic form shows milder skin changes with necrosis. An important variant of the chronic form is lymphomatoid papulosis. (12 Dec 1998) |
| pityriasis lichenoides chronica | An eruption lasting up to a few years, of reddish-brown papules with central scaling, that clears without scarring. Origin: Lichenoides Mod. L., fr. G. Leichen, lichen, a lichen-like eruption, + eidos, resemblance chronica Mod. L. Chronic, fr. G. Chronikos, pertaining to time; fr. Chronos, time (05 Mar 2000) |
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