Erythema annulare centrifugum - 離心性環狀紅斑
與這張圖相反，病灶通常不會結垢。
relevance score : -100.0%
ReferencesErythema annulare centrifugum (EAC) 是一種紅色皮疹，呈環形並向外擴散，中心清晰。當 EAC 因癌症而出現時，稱為 PEACE (paraneoplastic erythema annulare centrifugum eruption)。PEACE 在女性中較常見，通常在癌症診斷前出現，且可能在治療後復發。EAC 是環形皮疹的主要類型之一，與其他主要的圖形紅斑 (erythema marginatum, erythema migrans, and erythema gyratum repens) 相比，具有獨特的特徵。
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) 是一種紅色皮疹，呈圓形斑塊，皮膚常以片狀分布。人們認為它由多種因素觸發，但尚不清楚其具體發病機制。皮疹平均持續約 11 個月。我們討論了一位罹患 EAC 已 50 年、復發原因不明的患者。雖然此類情況似乎在一年中的特定時期會出現，但此病例為迄今報告的 EAC 最長持續時間。
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.
可發生於任何年齡，呈現凸起的粉紅色環或靶心樣病灶，尺寸範圍為 0.5–8 公分（0.20–3.15 英吋）。隨著時間推移，病變有時會增大、擴散，且可能呈不完整或不規則形狀。
可透過皮膚切片檢查確診。病灶可出現在任何部位，平均持續約 11 個月。通常不需要治療，但外用類固醇可能有助於減輕發紅、腫脹和搔癢。