Medicine:Dyshidrosis

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Short description: Human disease
Dyshidrosis
Other namesAcute vesiculobullous hand eczema,[1] dyshidrotic dermatitis,[2] cheiropompholyx,[3] dyshidrotic eczema,[3] pompholyx,[3] podopompholyx[3]
File:Finger Pompholyx 1.tif
The characteristic vesicles of dyshidrosis on a finger
Pronunciation
SpecialtyDermatology
SymptomsItchy blisters on the palms of the hands and bottoms of the feet[5]
ComplicationsSkin thickening[6]
Usual onsetOften recurrent[7]
DurationHeal over 3 weeks[6][7]
CausesUnknown[7]
Diagnostic methodBased on symptoms[7]
Differential diagnosisPustular psoriasis, scabies[6]
TreatmentAvoiding triggers, barrier cream, steroid cream, antihistamines[6][7]
Frequency~1 in 2,000 (Sweden)[6]

Dyshidrosis is a type of dermatitis that is characterized by itchy blisters on the palms of the hands and bottoms of the feet.[5] Blisters are generally one to two millimeters in size and heal over three weeks.[6][7] However, they often recur.[7] Redness is not usually present.[6] Repeated attacks may result in fissures and skin thickening.[6]

The cause is unknown.[7] Triggers may include allergens, physical or mental stress, frequent hand washing, or metals.[7] Diagnosis is typically based on what it looks like and the symptoms.[7] Allergy testing and culture may be done to rule out other problems.[7] Other conditions that produce similar symptoms include pustular psoriasis and scabies.[6]

Avoiding triggers may be useful, as may a barrier cream.[6] Treatment is generally with steroid cream.[7] High strength steroid creams may be required for the first week or two.[6] Antihistamines may be used to help with the itch.[7] If this is not effective steroid pills, tacrolimus, or psoralen plus ultraviolet A (PUVA) may be tried.[6][7]

About 1 in 2,000 people are affected in Sweden.[6] Males and females appear to be affected equally.[6] It explains about one in five cases of hand dermatitis.[8] The first description was in 1873.[6] The name comes from the word "dyshidrotic", meaning "difficult sweating", as problems with sweating was once believed to be the cause.[6]

Signs and symptoms

Dyshidrosis has been described as having the following characteristics:

  • Itchiness of the palms or soles, followed by the sudden development of intensely itchy small blisters on the sides of the fingers, the palms or the feet.[9]
  • These blisters are often described as having a "tapioca pudding" appearance.[10]
  • After a few weeks, the small blisters eventually disappear as the top layer of skin falls off.[6][11][12]
  • These eruptions do not occur elsewhere on the body.[6]
  • The eruptions may be symmetrical.[13]

  • Advanced stage of dyshidrosis on the fingers

  • Palmar dyshidrosis

  • Advanced stage of palmar dyshidrosis on the palm showing cracked and peeling skin

  • Advanced stage of dyshidrosis on the foot.

  • Rim of scale on the palmar surface of the thumb from a resolving dyshidrotic flare

Causes

The exact causes of dyshidrosis are unknown. Food allergens may be involved in certain cases.[11] Cases studies have implicated a wide range of foods including tuna, tomato, pineapple, chocolate, coffee, and spices among others.[11] A number of studies have implicated balsam of Peru.[11] A 2013 study found that dyshydrosis on the hands increased among those allergic to house dust mites, following inhalation of house dust mite allergen.[14]

Id reaction and irritant contact dermatitis are possible causes.[8]

Diagnosis

Dyshidrosis is diagnosed clinically, by gathering a patient's history and making careful observations (see signs and symptoms section).[7] Severity of symptoms can also be assessed using the dyshidrotic eczema area and severity index (DASI).[15] The DASI has been designed for clinical trials and is not typically used in practice.

Treatment

There are many treatments available for dyshidrosis. However, few of them have been developed or tested specifically on the condition.

  • Barriers to moisture and irritants, including barrier creams and gloves.[13]
  • Topical steroids[16] – while useful, can be dangerous long-term due to the skin-thinning side-effects, which are particularly troublesome in the context of hand dyshidrosis, due to the amount of toxins and bacteria the hands typically come in contact with.
  • Potassium permanganate dilute solution soaks – also popular, and used to 'dry out' the vesicles,[17] and kill off superficial Staphylococcus aureus,[18] but it can also be very painful. Undiluted it may cause significant burning.[19]
  • Dapsone (diamino-diphenyl sulfone), an antibacterial, has been recommended for the treatment of dyshidrosis in some chronic cases.[20]
  • Antihistamines: Fexofenadine up to 180 mg per day.[21]
  • Alitretinoin (9-cis-retinoic acid) has been approved for prescription in the UK. It is specifically used for chronic hand and foot eczema.[22][23][24] It is made by Basilea of Switzerland (BAL 4079).
  • Systemic steroids can be taken orally to treat especially acute and severe cases of dyshidrosis.[13]

Epidemiology

About 1 in 2,000 people are affected in Sweden. Males and females appear to be affected equally.[6]

Synonyms

Dyshidrosis is also known as pompholyx,[25] a term originating from the Greek word for "bubble".[8]

See also

  • Dermatitis herpetiformis – a similar condition caused by celiac and often mistaken for dyshidrosis.
  • Epidermolysis bullosa – a genetic disorder that causes similar, albeit more severe, symptoms to those of dyshidrosis.

References

  1. ↑ James, William; Berger, Timothy; Elston, Dirk (2005). Andrews' Diseases of the Skin: Clinical Dermatology (10th ed.). Saunders. ISBN:0-7216-2921-0.
  2. ↑ "Pompholyx". 2014-02-26. http://patient.info/doctor/pompholyx-pro. 
  3. ↑ 3.0 3.1 3.2 3.3 Rapini, Ronald P.; Bolognia, Jean L.; Jorizzo, Joseph L. (2007). Dermatology: 2-Volume Set. St. Louis: Mosby. ISBN 978-1-4160-2999-1. 
  4. ↑ "Dyshidrosis". Merriam-Webster Online. Merriam-Webster. 2014. http://www.merriam-webster.com/medical/dyshidrosis. Retrieved 14 April 2014. 
  5. ↑ 5.0 5.1 "What Is Atopic Dermatitis? Fast Facts". November 2014. http://www.niams.nih.gov/health_info/atopic_dermatitis/atopic_dermatitis_ff.asp. 
  6. ↑ 6.00 6.01 6.02 6.03 6.04 6.05 6.06 6.07 6.08 6.09 6.10 6.11 6.12 6.13 6.14 6.15 6.16 6.17 6.18 Lofgren, SM; Warshaw, EM (December 2006). "Dyshidrosis: epidemiology, clinical characteristics, and therapy.". Dermatitis: Contact, Atopic, Occupational, Drug 17 (4): 165–81. doi:10.2310/6620.2006.05021. PMID 17150166. 
  7. ↑ 7.00 7.01 7.02 7.03 7.04 7.05 7.06 7.07 7.08 7.09 7.10 7.11 7.12 7.13 7.14 Colomb-Lippa, D; Klingler, AM (July 2011). "Dyshidrosis". Journal of the American Academy of Physician Assistants 24 (7): 54. PMID 21748961. 
  8. ↑ 8.0 8.1 8.2 Fitzpatrick, James (2016). "8". Dermatology Secrets Plus. Elsevier. pp. 70–81. ISBN 978-0-323-31029-1. https://books.google.com/books?id=ReqeCgAAQBAJ&pg=PR76. 
  9. ↑ Shelley, W. B. (1953-09-01). "Dysidrosis (pompholyx)". AMA Archives of Dermatology and Syphilology 68 (3): 314–319. doi:10.1001/archderm.1953.01540090076008. ISSN 0096-5979. PMID 13079297. 
  10. ↑ Bielan, Barbara (1996-04-01). "Dyshidrotic eczema" (in en). Dermatology Nursing 8 (2). http://go.galegroup.com/ps/anonymous?id=GALE%7CA19051123&sid=googleScholar&v=2.1&it=r&linkaccess=fulltext&issn=10603441&p=AONE&sw=w&authCount=1&isAnonymousEntry=true. 
  11. ↑ 11.0 11.1 11.2 11.3 Veien, Niels K. (2009-07-01). "Acute and recurrent vesicular hand dermatitis". Dermatologic Clinics 27 (3): 337–353, vii. doi:10.1016/j.det.2009.05.013. ISSN 1558-0520. PMID 19580928. 
  12. ↑ Lofgren, Sabra M.; Warshaw, Erin M. (2006-12-01). "Dyshidrosis: epidemiology, clinical characteristics, and therapy". Dermatitis: Contact, Atopic, Occupational, Drug 17 (4): 165–181. doi:10.2310/6620.2006.05021. ISSN 1710-3568. PMID 17150166. 
  13. ↑ 13.0 13.1 13.2 Perry, Adam D.; Trafeli, John P. (2009-05-01). "Hand Dermatitis: Review of Etiology, Diagnosis, and Treatment" (in en). The Journal of the American Board of Family Medicine 22 (3): 325–330. doi:10.3122/jabfm.2009.03.080118. ISSN 1557-2625. PMID 19429739. 
  14. ↑ "Increase in vesicular hand eczema after house dust mite inhalation provocation: a double-blind, placebo-controlled, cross-over study". Contact Dermatitis 68 (2): 76–85. 2013. doi:10.1111/j.1600-0536.2012.02172.x. PMID 23046099. https://pure.rug.nl/ws/files/6789209/Schuttelaar_2013_Contact_Dermat.pdf. 
  15. ↑ Vocks, E.; Plötz, S. G.; Ring, J. (1999-01-01). "The Dyshidrotic Eczema Area and Severity Index – A score developed for the assessment of dyshidrotic eczema". Dermatology 198 (3): 265–269. doi:10.1159/000018127. ISSN 1018-8665. PMID 10393450. 
  16. ↑ "eMedicine – Dyshidrotic Eczema: Article by Camila K Janniger". http://www.emedicine.com/ped/topic1867.htm. 
  17. ↑ BIRT AR (March 1964). "Drugs for Eczema of Children". Can Med Assoc J 90 (11): 693–4. PMID 14127384. 
  18. ↑ Stalder JF; Fleury M; Sourisse M et al. (1992). "Comparative effects of two topical antiseptics (chlorhexidine vs KMn04) on bacterial skin flora in atopic dermatitis". Acta Derm Venereol Suppl (Stockh) 176: 132–4. PMID 1476027. 
  19. ↑ "Caustic burn caused by potassium permanganate". Arch. Dis. Child. 88 (2): 96. February 2003. doi:10.1136/adc.88.2.96. PMID 12538301. 
  20. ↑ "Vesicular hand dermatitis". http://www.dermnet.org.nz/dermatitis/pompholyx.html. 
  21. ↑ Diepgen, Thomas L.; Agner, Tove; Aberer, Werner; Berth-Jones, John; Cambazard, Frédéric; Elsner, Peter; McFadden, John; Coenraads, Pieter Jan (2007-10-01). "Management of chronic hand eczema" (in en). Contact Dermatitis 57 (4): 203–210. doi:10.1111/j.1600-0536.2007.01179.x. ISSN 1600-0536. PMID 17868211. 
  22. ↑ "Efficacy and safety of oral alitretinoin (9-cis retinoic acid) in patients with severe chronic hand eczema refractory to topical corticosteroids: results of a randomized, double-blind, placebo-controlled, multicentre trial". Br. J. Dermatol. 158 (4): 808–17. April 2008. doi:10.1111/j.1365-2133.2008.08487.x. PMID 18294310. https://pure.rug.nl/ws/files/6715954/Ruzicka_2008_Br_J_Dermatol.pdf. 
  23. ↑ "Successful treatment of chronic hand eczema with oral 9-cis-retinoic acid". Dermatology (Basel) 199 (4): 308–12. 1999. doi:10.1159/000018280. PMID 10640839. 
  24. ↑ "Oral alitretinoin (9-cis-retinoic acid) therapy for chronic hand dermatitis in patients refractory to standard therapy: results of a randomized, double-blind, placebo-controlled, multicenter trial". Arch Dermatol 140 (12): 1453–9. December 2004. doi:10.1001/archderm.140.12.1453. PMID 15611422. 
  25. ↑ "ICD 11 Beta Draft". https://icd.who.int/dev11/l-m/en#/http%3a%2f%2fid.who.int%2ficd%2fentity%2f1441325423. 

External links

Classification
External resources
  • Pompholyx at DermNet NZ (New Zealand Dermatological Society Incorporated)



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