Erythema annulare centrifugum - 离心性环状红斑
与这张图相反，更常见的是病灶没有结垢。
relevance score : -100.0%
ReferencesErythema annulare centrifugum (EAC) 是一种红色皮疹，呈环形并向外扩散，留下清晰的中心。当 EAC 因癌症而出现时，称为 PEACE (paraneoplastic erythema annulare centrifugum eruption)。PEACE 在女性中更为常见，通常出现在癌症诊断之前，并且可能在治疗后复发。EAC 是环形皮疹的主要类型之一，与其他主要的图形红斑 (erythema marginatum, erythema migrans, and erythema gyratum repens) 相比具有独特的特征。
Erythema annulare centrifugum (EAC) is an annular, erythematous lesion that appears as urticarial-like papules and enlarges centrifugally, then clears centrally. A fine scale is sometimes present inside the advancing edge, known as a trailing scale. Erythema annulare centrifugum is classified as a reactive erythema and has been associated with various underlying conditions, including malignancies. When erythema annulare centrifugum occurs as a paraneoplastic phenomenon, it has been designated PEACE (paraneoplastic erythema annulare centrifugum eruption). PEACE is more commonly seen in females, typically precedes the clinical diagnosis of malignancy, and may recur with subsequent relapses. EAC is one of the three major figurate erythemas, with EAC being the most common. These dermatoses share the common presentation of advancing erythematous, annular lesions, but are each separated by unique clinical and histopathologic characteristics. Once the other major figurate erythemas (erythema marginatum, erythema migrans, and erythema gyratum repens) are excluded, EAC often becomes a diagnosis of exclusion.
Erythema annulare centrifugum (EAC) is an annular, erythematous lesion that appears as urticarial-like papules and enlarges centrifugally, then clears centrally. A fine scale is sometimes present inside the advancing edge, known as a trailing scale. Erythema annulare centrifugum is classified as a reactive erythema and has been associated with various underlying conditions, including malignancies. When erythema annulare centrifugum occurs as a paraneoplastic phenomenon, it has been designated PEACE (paraneoplastic erythema annulare centrifugum eruption). PEACE is more commonly seen in females, typically precedes the clinical diagnosis of malignancy, and may recur with subsequent relapses. EAC is one of the three major figurate erythemas, with EAC being the most common. These dermatoses share the common presentation of advancing erythematous, annular lesions, but are each separated by unique clinical and histopathologic characteristics. Once the other major figurate erythemas (erythema marginatum, erythema migrans, and erythema gyratum repens) are excluded, EAC often becomes a diagnosis of exclusion.
Erythema annulare centrifugum (EAC) 是一种呈圆形、红色的皮疹，常以片状分布于皮肤。虽然人们认为它可由多种因素触发，但具体发病机制尚不明确。该皮疹的平均持续时间约为 11 个月。本文讨论了一例患有 EAC 已达 50 年且复发原因不明的患者。尽管此类病例常在一年中的特定时段出现，但该病例创下了已报告的 EAC 最长持续时间的记录。
Erythema annulare centrifugum (EAC) is a type of red rash that forms circular shapes and often has flaky skin. It's thought to be triggered by various factors, but we're not sure exactly how it happens. On average, the rash lasts for about 11 months. We discuss a patient who has had EAC coming back for 50 years without a clear reason. While it does seem to come back at certain times of the year, this case represents the longest reported duration of EAC.
Erythema annulare centrifugum (EAC) is a type of red rash that forms circular shapes and often has flaky skin. It's thought to be triggered by various factors, but we're not sure exactly how it happens. On average, the rash lasts for about 11 months. We discuss a patient who has had EAC coming back for 50 years without a clear reason. While it does seem to come back at certain times of the year, this case represents the longest reported duration of EAC.
该病可发生于任何年龄，呈凸起的粉红色环或靶心样斑块，直径约 0.5–8 厘米（0.20–3.15 英寸）。随时间推移，病变有时会增大并向外扩展，形状可能不完整，呈不规则形。
可通过皮肤活检确诊。病变可出现在任何部位，平均持续约 11 个月。通常无需治疗，但外用类固醇可帮助减轻发红、肿胀和瘙痒。