Poikiloderma
Poikiloderma 是一种皮肤病，表现为色素沉着不足、色素沉着过度、毛细血管扩张和萎缩。Poikiloderma 最常见于胸部或颈部，其特征是皮肤出现红色斑点，通常与阳光损伤有关。
relevance score : -100.0%
ReferencesPoikiloderma of Civatte 是一种常见的皮肤病，主要出现在颈部和面部，尤其是皮肤白皙的绝经后女性。它表现为红线、黑斑和皮肤变薄的混合症状。通常，病变出现在暴露于阳光的部位，如面部、颈部和胸部，而阴影区则不受影响。Poikiloderma of Civatte 可根据主要特征分为三类：发红型、色素沉着型或两者兼有型。具体病因尚未完全明确，但日晒、激素变化、对香水或化妆品的过敏反应以及衰老等因素被认为与其发生有关。Poikiloderma of Civatte 随着时间推移，可能逐渐加重。
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.
