Nummular dermatitis (commonly known as nummular eczema or discoid eczema) is one of the many forms of dermatitis.[1] It is characterized by round or oval-shaped itchy lesions.[2] The name comes from the Latin word "nummus," which means "coin."
Nummular dermatitis is characterized by chronic or relapsing itchy coin-sized ovoid-shaped red plaques.[3][4] They can occur on the trunk, limbs, face, and hands.[1][2][5]
Causesedit
Many contact sensitizers or irritants are known to cause contact dermatitis superimposed on nummular dermatitis. Studies have implicated nickel, cobalt, chromate, and fragrance as likely culprits.[6][7]Xerosis, or dehydration of skin is also a likely cause.[8] Infection with Staphylococcus aureus bacteria or Candida albicans may also play a role.[8]
Diagnosisedit
Diagnosis of nummular dermatitis is largely via clinical observation. Biopsies are typically not necessary, and cannot be used to rule out other atopic dermatitis or other eczemas.[9][10] However, patch testing may be employed to rule out irritants (contact dermatitis) as a cause.[6][11] In children, nummular dermatitis is commonly confused with tinea corporis.[8]
One of the keys to treatment and prevention involves keeping the skin moisturized. Lotions, creams, and bath oils may help prevent an outbreak. If the condition flares up, a common treatment involves the application of topical corticosteroids. Oral antihistamines may help lessen itching. Avoidance of irritants is a common strategy. More severe cases sometimes respond to ultraviolet light treatment. If the condition occurs only during the sun-less winter months then vitamin D supplement might be an effective treatment.[citation needed]
Epidemiologyedit
The prevalence of nummular dermatitis in the United States is approximately 2 per 1,000.[12] It is considered a disease of adulthood, for it is rare in children.[13]
^ abCowan MA (1961-01-01). "Nummular eczema. A review, follow-up and analysis of a series of 325 cases". Acta Dermato-Venereologica. 41: 453–460. PMID 13881857.
^ abWeidman AI, Sawicky HH (January 1956). "Nummular eczema; review of the literature: survey of 516 case records and follow-up of 125 patients". A.M.A. Archives of Dermatology. 73 (1): 58–65. doi:10.1001/archderm.1956.01550010060006. PMID 13275125.
^Adachi A, Horikawa T, Takashima T, Ichihashi M (August 2000). "Mercury-induced nummular dermatitis". Journal of the American Academy of Dermatology. 43 (2 Pt 2): 383–385. doi:10.1067/mjd.2000.102457. PMID 10901730.
^Rollins TG (October 1968). "From xerosis to nummular dermatitis. The dehydration dermatosis". JAMA. 206 (3): 637. doi:10.1001/jama.1968.03150030093022. PMID 5695586.
^Perry AD, Trafeli JP (2009-05-01). "Hand dermatitis: review of etiology, diagnosis, and treatment". Journal of the American Board of Family Medicine. 22 (3): 325–330. doi:10.3122/jabfm.2009.03.080118. PMID 19429739.
^ abKhurana S, Jain VK, Aggarwal K, Gupta S (December 2002). "Patch testing in discoid eczema". The Journal of Dermatology. 29 (12): 763–767. doi:10.1111/j.1346-8138.2002.tb00219.x. PMID 12532040. S2CID 43205871.
^Bonamonte D, Foti C, Vestita M, Ranieri LD, Angelini G (2012). "Nummular eczema and contact allergy: a retrospective study". Dermatitis. 23 (4): 153–157. doi:10.1097/der.0b013e318260d5a0. PMID 22828253. S2CID 446758.
^ abcWilliams HC (June 2005). "Clinical practice. Atopic dermatitis". The New England Journal of Medicine. 352 (22): 2314–2324. doi:10.1056/NEJMcp042803. PMID 15930422.
^Kulthanan K, Samutrapong P, Jiamton S, Tuchinda P (December 2007). "Adult-onset atopic dermatitis: a cross-sectional study of natural history and clinical manifestation". Asian Pacific Journal of Allergy and Immunology. 25 (4): 207–214. PMID 18402293.
^Julián-Gónzalez RE, Orozco-Covarrubias L, Durán-McKinster C, Palacios-Lopez C, Ruiz-Maldonado R, Sáez-de-Ocariz M (2012-09-01). "Less common clinical manifestations of atopic dermatitis: prevalence by age". Pediatric Dermatology. 29 (5): 580–583. doi:10.1111/j.1525-1470.2012.01739.x. PMID 22469300. S2CID 5339404.
^Krupa Shankar DS, Shrestha S (2005-11-01). "Relevance of patch testing in patients with nummular dermatitis". Indian Journal of Dermatology, Venereology and Leprology. 71 (6): 406–408. doi:10.4103/0378-6323.18945. hdl:1807/5587. PMID 16394482.
^Johnson ML, Roberts J (1977-01-01). "Prevalence of dermatological disease among persons 1-74 years of age: United States". ADV Data Natl CTR Health Statistics.
^Krol A, Krafchik B (2006-03-01). "The differential diagnosis of atopic dermatitis in childhood". Dermatologic Therapy. 19 (2): 73–82. doi:10.1111/j.1529-8019.2006.00058.x. PMID 16669989. S2CID 42426282.
External linksedit
January 01, 1970
nummular, dermatitis, commonly, known, nummular, eczema, discoid, eczema, many, forms, dermatitis, characterized, round, oval, shaped, itchy, lesions, name, comes, from, latin, word, nummus, which, means, coin, other, namesdiscoid, dermatitis, discoid, eczema,. Nummular dermatitis commonly known as nummular eczema or discoid eczema is one of the many forms of dermatitis 1 It is characterized by round or oval shaped itchy lesions 2 The name comes from the Latin word nummus which means coin Nummular dermatitisOther namesDiscoid dermatitis Discoid eczema Microbial eczema Nummular eczema Nummular neurodermatitisLesions visible on outer thighSpecialtyDermatologyDifferential diagnosisDermatophytosis Ringworm Contents 1 Signs and symptoms 2 Causes 3 Diagnosis 4 Treatment 5 Epidemiology 6 See also 7 References 8 External linksSigns and symptoms editNummular dermatitis is characterized by chronic or relapsing itchy coin sized ovoid shaped red plaques 3 4 They can occur on the trunk limbs face and hands 1 2 5 Causes editMany contact sensitizers or irritants are known to cause contact dermatitis superimposed on nummular dermatitis Studies have implicated nickel cobalt chromate and fragrance as likely culprits 6 7 Xerosis or dehydration of skin is also a likely cause 8 Infection with Staphylococcus aureus bacteria or Candida albicans may also play a role 8 Diagnosis editDiagnosis of nummular dermatitis is largely via clinical observation Biopsies are typically not necessary and cannot be used to rule out other atopic dermatitis or other eczemas 9 10 However patch testing may be employed to rule out irritants contact dermatitis as a cause 6 11 In children nummular dermatitis is commonly confused with tinea corporis 8 Treatment editThis section does not cite any sources Please help improve this section by adding citations to reliable sources Unsourced material may be challenged and removed April 2022 Learn how and when to remove this message One of the keys to treatment and prevention involves keeping the skin moisturized Lotions creams and bath oils may help prevent an outbreak If the condition flares up a common treatment involves the application of topical corticosteroids Oral antihistamines may help lessen itching Avoidance of irritants is a common strategy More severe cases sometimes respond to ultraviolet light treatment If the condition occurs only during the sun less winter months then vitamin D supplement might be an effective treatment citation needed Epidemiology editThe prevalence of nummular dermatitis in the United States is approximately 2 per 1 000 12 It is considered a disease of adulthood for it is rare in children 13 See also editList of cutaneous conditions Sulzberger Garbe syndromeReferences edit a b Cowan MA 1961 01 01 Nummular eczema A review follow up and analysis of a series of 325 cases Acta Dermato Venereologica 41 453 460 PMID 13881857 a b Weidman AI Sawicky HH January 1956 Nummular eczema review of the literature survey of 516 case records and follow up of 125 patients A M A Archives of Dermatology 73 1 58 65 doi 10 1001 archderm 1956 01550010060006 PMID 13275125 Adachi A Horikawa T Takashima T Ichihashi M August 2000 Mercury induced nummular dermatitis Journal of the American Academy of Dermatology 43 2 Pt 2 383 385 doi 10 1067 mjd 2000 102457 PMID 10901730 Rollins TG October 1968 From xerosis to nummular dermatitis The dehydration dermatosis JAMA 206 3 637 doi 10 1001 jama 1968 03150030093022 PMID 5695586 Perry AD Trafeli JP 2009 05 01 Hand dermatitis review of etiology diagnosis and treatment Journal of the American Board of Family Medicine 22 3 325 330 doi 10 3122 jabfm 2009 03 080118 PMID 19429739 a b Khurana S Jain VK Aggarwal K Gupta S December 2002 Patch testing in discoid eczema The Journal of Dermatology 29 12 763 767 doi 10 1111 j 1346 8138 2002 tb00219 x PMID 12532040 S2CID 43205871 Bonamonte D Foti C Vestita M Ranieri LD Angelini G 2012 Nummular eczema and contact allergy a retrospective study Dermatitis 23 4 153 157 doi 10 1097 der 0b013e318260d5a0 PMID 22828253 S2CID 446758 a b c Williams HC June 2005 Clinical practice Atopic dermatitis The New England Journal of Medicine 352 22 2314 2324 doi 10 1056 NEJMcp042803 PMID 15930422 Kulthanan K Samutrapong P Jiamton S Tuchinda P December 2007 Adult onset atopic dermatitis a cross sectional study of natural history and clinical manifestation Asian Pacific Journal of Allergy and Immunology 25 4 207 214 PMID 18402293 Julian Gonzalez RE Orozco Covarrubias L Duran McKinster C Palacios Lopez C Ruiz Maldonado R Saez de Ocariz M 2012 09 01 Less common clinical manifestations of atopic dermatitis prevalence by age Pediatric Dermatology 29 5 580 583 doi 10 1111 j 1525 1470 2012 01739 x PMID 22469300 S2CID 5339404 Krupa Shankar DS Shrestha S 2005 11 01 Relevance of patch testing in patients with nummular dermatitis Indian Journal of Dermatology Venereology and Leprology 71 6 406 408 doi 10 4103 0378 6323 18945 hdl 1807 5587 PMID 16394482 Johnson ML Roberts J 1977 01 01 Prevalence of dermatological disease among persons 1 74 years of age United States ADV Data Natl CTR Health Statistics Krol A Krafchik B 2006 03 01 The differential diagnosis of atopic dermatitis in childhood Dermatologic Therapy 19 2 73 82 doi 10 1111 j 1529 8019 2006 00058 x PMID 16669989 S2CID 42426282 External links edit Retrieved from https en wikipedia org w index php title Nummular dermatitis amp oldid 1213560363, wikipedia, wiki, book, books, library,
