Poikiloderma - Poiquilodermia
La Poiquilodermia (Poikiloderma) és una afecció de la pell que consisteix en àrees d'hipopigmentació, hiperpigmentació, telangiectàsies i atròfia. La poiquilodermia (poikiloderma) es veu amb més freqüència al pit o al coll, caracteritzat per un pigment de color vermell a la pell que s'associa habitualment amb danys solars.
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Poikiloderma of Civatte és una afecció de la pell comuna que apareix principalment al coll i la cara, especialment en dones postmenopàusiques de pell clara. Es presenta com una barreja de línies vermelles, taques fosques i pell fina. Normalment, afecta les zones exposades al sol, com la cara, el coll i el pit, però no les zones ombrejades. Poikiloderma of Civatte es pot classificar segons les seves característiques principals: envermelliment, taques fosques o una barreja d'ambdues. La causa exacta no s'entén del tot, però es creu que factors com l'exposició al sol, els canvis hormonals, les reaccions a perfums o cosmètics i l'envelliment tenen un paper important. Poikiloderma of Civatte tendeix a empitjorar lentament amb el temps.
Poikiloderma of Civatte (PC) is a rather common benign dermatosis of the neck and face, mainly affecting fair-skinned individuals, especially postmenopausal females. It is characterized by a combination of a reticular pattern of linear telangiectasia, mottled hyperpigmentation and superficial atrophy. Clinically, it involves symmetrically sun-exposed areas of the face, the neck, and the V-shaped area of the chest, invariably sparing the anatomically shaded areas. Depending on the prevalent clinical feature, PC can be classified into erythemato-telangiectatic, pigmented, and mixed clinical types. The etiopathogenesis of PC is incompletely understood. Exposure to ultraviolet radiation, hormonal changes of menopause, contact sensitization to perfumes and cosmetics, and normal ageing have been incriminated. The diagnosis is usually clinical and can be confirmed by histology, which is characteristic, but not pathognomonic. The course is slowly progressive and irreversible, often causing significant cosmetic disfigurement.
Poikiloderma of Civatte (PC) is a rather common benign dermatosis of the neck and face, mainly affecting fair-skinned individuals, especially postmenopausal females. It is characterized by a combination of a reticular pattern of linear telangiectasia, mottled hyperpigmentation and superficial atrophy. Clinically, it involves symmetrically sun-exposed areas of the face, the neck, and the V-shaped area of the chest, invariably sparing the anatomically shaded areas. Depending on the prevalent clinical feature, PC can be classified into erythemato-telangiectatic, pigmented, and mixed clinical types. The etiopathogenesis of PC is incompletely understood. Exposure to ultraviolet radiation, hormonal changes of menopause, contact sensitization to perfumes and cosmetics, and normal ageing have been incriminated. The diagnosis is usually clinical and can be confirmed by histology, which is characteristic, but not pathognomonic. The course is slowly progressive and irreversible, often causing significant cosmetic disfigurement.
