Alexander K C Leung, Joseph M Lam, Kin Fon Leong, Amy A M Leung, Alex H C Wong, Kam L Hon
{"title":"numular湿疹:最新综述。","authors":"Alexander K C Leung, Joseph M Lam, Kin Fon Leong, Amy A M Leung, Alex H C Wong, Kam L Hon","doi":"10.2174/1872213X14666200810152246","DOIUrl":null,"url":null,"abstract":"<p><strong>Background: </strong>Nummular eczema may mimic diseases that present with annular configuration and the differential diagnosis is broad.</p><p><strong>Objective: </strong>This article aimed to provide an update on the evaluation, diagnosis, and treatment of nummular eczema.</p><p><strong>Methods: </strong>A PubMed search was performed in using the key terms \"nummular eczema\", \"discoid eczema\", OR \"nummular dermatitis\". The search strategy included meta-analyses, randomized controlled trials, clinical trials, observational studies, and reviews. The search was restricted to English literature. The information retrieved from the above search was used in the compilation of the present article. Patents were searched using the key terms \"nummular eczema\", \"discoid eczema\", OR \"nummular dermatitis\" in www.google.com/patents and www.freepatentsonline.com.</p><p><strong>Results: </strong>Nummular eczema is characterized by sharply defined, oval or coin-shaped, erythematous, eczematous plaques. Typically, the size of the lesion varies from 1 to 10cm in diameter. The lesions are usually multiple and symmetrically distributed. Sites of predilection include the lower limbs followed by the upper limbs. The lesions are usually intensely pruritic. The diagnosis is mainly clinical based on the characteristic round to oval erythematous plaques in a patient with diffusely dry skin. Nummular eczema should be distinguished from other annular lesions. Dermoscopy can reveal additional features that can be valuable for correct diagnosis. Biopsy or laboratory tests are generally not necessary. However, a potassium hydroxide wet-mount examination of skin scrapings should be performed if tinea corporis is suspected. Because contact allergy is common with nummular eczema, patch testing should be considered in patients with chronic, recalcitrant nummular eczema. Avoidance of precipitating factors, optimal skin care, and high or ultra-high potency topical corticosteroids are the mainstay of therapy. Recent patents related to the management of nummular eczema are also discussed.</p><p><strong>Conclusion: </strong>With proper treatment, nummular eczema can be cleared over a few weeks, although the course can be chronic and characterized by relapses and remissions. Moisturizing of the skin and avoidance of identifiable exacerbating factors, such as hot water baths and harsh soaps may reduce the frequency of recurrence. Diseases that present with annular lesions may mimic nummular eczema and the differential diagnosis is broad. As such, physicians must be familiar with this condition so that an accurate diagnosis can be made, and appropriate treatment initiated.</p>","PeriodicalId":20960,"journal":{"name":"Recent patents on inflammation & allergy drug discovery","volume":"14 2","pages":"146-155"},"PeriodicalIF":4.2000,"publicationDate":"2020-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"13","resultStr":"{\"title\":\"Nummular Eczema: An Updated Review.\",\"authors\":\"Alexander K C Leung, Joseph M Lam, Kin Fon Leong, Amy A M Leung, Alex H C Wong, Kam L Hon\",\"doi\":\"10.2174/1872213X14666200810152246\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p><strong>Background: </strong>Nummular eczema may mimic diseases that present with annular configuration and the differential diagnosis is broad.</p><p><strong>Objective: </strong>This article aimed to provide an update on the evaluation, diagnosis, and treatment of nummular eczema.</p><p><strong>Methods: </strong>A PubMed search was performed in using the key terms \\\"nummular eczema\\\", \\\"discoid eczema\\\", OR \\\"nummular dermatitis\\\". The search strategy included meta-analyses, randomized controlled trials, clinical trials, observational studies, and reviews. The search was restricted to English literature. The information retrieved from the above search was used in the compilation of the present article. Patents were searched using the key terms \\\"nummular eczema\\\", \\\"discoid eczema\\\", OR \\\"nummular dermatitis\\\" in www.google.com/patents and www.freepatentsonline.com.</p><p><strong>Results: </strong>Nummular eczema is characterized by sharply defined, oval or coin-shaped, erythematous, eczematous plaques. Typically, the size of the lesion varies from 1 to 10cm in diameter. The lesions are usually multiple and symmetrically distributed. Sites of predilection include the lower limbs followed by the upper limbs. The lesions are usually intensely pruritic. The diagnosis is mainly clinical based on the characteristic round to oval erythematous plaques in a patient with diffusely dry skin. Nummular eczema should be distinguished from other annular lesions. Dermoscopy can reveal additional features that can be valuable for correct diagnosis. Biopsy or laboratory tests are generally not necessary. However, a potassium hydroxide wet-mount examination of skin scrapings should be performed if tinea corporis is suspected. Because contact allergy is common with nummular eczema, patch testing should be considered in patients with chronic, recalcitrant nummular eczema. Avoidance of precipitating factors, optimal skin care, and high or ultra-high potency topical corticosteroids are the mainstay of therapy. Recent patents related to the management of nummular eczema are also discussed.</p><p><strong>Conclusion: </strong>With proper treatment, nummular eczema can be cleared over a few weeks, although the course can be chronic and characterized by relapses and remissions. Moisturizing of the skin and avoidance of identifiable exacerbating factors, such as hot water baths and harsh soaps may reduce the frequency of recurrence. Diseases that present with annular lesions may mimic nummular eczema and the differential diagnosis is broad. As such, physicians must be familiar with this condition so that an accurate diagnosis can be made, and appropriate treatment initiated.</p>\",\"PeriodicalId\":20960,\"journal\":{\"name\":\"Recent patents on inflammation & allergy drug discovery\",\"volume\":\"14 2\",\"pages\":\"146-155\"},\"PeriodicalIF\":4.2000,\"publicationDate\":\"2020-01-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"13\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Recent patents on inflammation & allergy drug discovery\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.2174/1872213X14666200810152246\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q3\",\"JCRName\":\"Pharmacology, Toxicology and Pharmaceutics\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Recent patents on inflammation & allergy drug discovery","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.2174/1872213X14666200810152246","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"Pharmacology, Toxicology and Pharmaceutics","Score":null,"Total":0}
Background: Nummular eczema may mimic diseases that present with annular configuration and the differential diagnosis is broad.
Objective: This article aimed to provide an update on the evaluation, diagnosis, and treatment of nummular eczema.
Methods: A PubMed search was performed in using the key terms "nummular eczema", "discoid eczema", OR "nummular dermatitis". The search strategy included meta-analyses, randomized controlled trials, clinical trials, observational studies, and reviews. The search was restricted to English literature. The information retrieved from the above search was used in the compilation of the present article. Patents were searched using the key terms "nummular eczema", "discoid eczema", OR "nummular dermatitis" in www.google.com/patents and www.freepatentsonline.com.
Results: Nummular eczema is characterized by sharply defined, oval or coin-shaped, erythematous, eczematous plaques. Typically, the size of the lesion varies from 1 to 10cm in diameter. The lesions are usually multiple and symmetrically distributed. Sites of predilection include the lower limbs followed by the upper limbs. The lesions are usually intensely pruritic. The diagnosis is mainly clinical based on the characteristic round to oval erythematous plaques in a patient with diffusely dry skin. Nummular eczema should be distinguished from other annular lesions. Dermoscopy can reveal additional features that can be valuable for correct diagnosis. Biopsy or laboratory tests are generally not necessary. However, a potassium hydroxide wet-mount examination of skin scrapings should be performed if tinea corporis is suspected. Because contact allergy is common with nummular eczema, patch testing should be considered in patients with chronic, recalcitrant nummular eczema. Avoidance of precipitating factors, optimal skin care, and high or ultra-high potency topical corticosteroids are the mainstay of therapy. Recent patents related to the management of nummular eczema are also discussed.
Conclusion: With proper treatment, nummular eczema can be cleared over a few weeks, although the course can be chronic and characterized by relapses and remissions. Moisturizing of the skin and avoidance of identifiable exacerbating factors, such as hot water baths and harsh soaps may reduce the frequency of recurrence. Diseases that present with annular lesions may mimic nummular eczema and the differential diagnosis is broad. As such, physicians must be familiar with this condition so that an accurate diagnosis can be made, and appropriate treatment initiated.
期刊介绍:
Recent Patents on Inflammation & Allergy Drug Discovery publishes review articles by experts on recent patents in the field of inflammation and allergy drug discovery e.g. on novel bioactive compounds, analogs and targets. A selection of important and recent patents in the field is also included in the journal. The journal is essential reading for all researchers involved in inflammation and allergy drug design and discovery.