Ichthyosis bullosa of Siemens

Jump to navigation Jump to search
Ichthyosis Bullosa of Siemens
Lower leg of a 12 month infant with Ichthyosis bullosa of Siemens
ICD-10 Q80.3
OMIM 146800
MeSH D053560

WikiDoc Resources for Ichthyosis bullosa of Siemens

Articles

Most recent articles on Ichthyosis bullosa of Siemens

Most cited articles on Ichthyosis bullosa of Siemens

Review articles on Ichthyosis bullosa of Siemens

Articles on Ichthyosis bullosa of Siemens in N Eng J Med, Lancet, BMJ

Media

Powerpoint slides on Ichthyosis bullosa of Siemens

Images of Ichthyosis bullosa of Siemens

Photos of Ichthyosis bullosa of Siemens

Podcasts & MP3s on Ichthyosis bullosa of Siemens

Videos on Ichthyosis bullosa of Siemens

Evidence Based Medicine

Cochrane Collaboration on Ichthyosis bullosa of Siemens

Bandolier on Ichthyosis bullosa of Siemens

TRIP on Ichthyosis bullosa of Siemens

Clinical Trials

Ongoing Trials on Ichthyosis bullosa of Siemens at Clinical Trials.gov

Trial results on Ichthyosis bullosa of Siemens

Clinical Trials on Ichthyosis bullosa of Siemens at Google

Guidelines / Policies / Govt

US National Guidelines Clearinghouse on Ichthyosis bullosa of Siemens

NICE Guidance on Ichthyosis bullosa of Siemens

NHS PRODIGY Guidance

FDA on Ichthyosis bullosa of Siemens

CDC on Ichthyosis bullosa of Siemens

Books

Books on Ichthyosis bullosa of Siemens

News

Ichthyosis bullosa of Siemens in the news

Be alerted to news on Ichthyosis bullosa of Siemens

News trends on Ichthyosis bullosa of Siemens

Commentary

Blogs on Ichthyosis bullosa of Siemens

Definitions

Definitions of Ichthyosis bullosa of Siemens

Patient Resources / Community

Patient resources on Ichthyosis bullosa of Siemens

Discussion groups on Ichthyosis bullosa of Siemens

Patient Handouts on Ichthyosis bullosa of Siemens

Directions to Hospitals Treating Ichthyosis bullosa of Siemens

Risk calculators and risk factors for Ichthyosis bullosa of Siemens

Healthcare Provider Resources

Symptoms of Ichthyosis bullosa of Siemens

Causes & Risk Factors for Ichthyosis bullosa of Siemens

Diagnostic studies for Ichthyosis bullosa of Siemens

Treatment of Ichthyosis bullosa of Siemens

Continuing Medical Education (CME)

CME Programs on Ichthyosis bullosa of Siemens

International

Ichthyosis bullosa of Siemens en Espanol

Ichthyosis bullosa of Siemens en Francais

Business

Ichthyosis bullosa of Siemens in the Marketplace

Patents on Ichthyosis bullosa of Siemens

Experimental / Informatics

List of terms related to Ichthyosis bullosa of Siemens

Overview

Ichthyosis bullosa of Siemens is a rare skin disorder which is a type of familial, autosomal dominant ichthyosis.[1]:491 It is also known as bullous congenital ichthyosiform erythroderma of Siemens or ichthyosis exfoliativa. It is a genetic disorder with no known cure which is estimated to affect about 1 in 500,000 people.[2]

History

Ichthyosis bullosa of Siemens (IBS) was first described by the German dermatologist Hermann Werner Siemens in 1937 from his study of an affected family. [3]

In 1994 the gene causing IBS was discovered and it was also proved in the same year that ichthyosis exfoliativa is the same disease as IBS. [4]

Symptoms

IBS has symptoms very similar to epidermolytic hyperkeratosis (EHK) but is generally milder than EHK. IBS affects only the upper layers of the epidermis whilst EHK affects the suprabasal layer which is deeper in the skin. [5]

At birth the baby's skin has a red appearance like a sun burn (erythema). Blistering is usually present at birth and may be extensive or localized depending on the severity of the disease.[4]

Over the first few weeks the redness disappears and is replaced by dry, flaking skin on the arms, legs and around the belly button.[6] Other areas of skin appear normal. The skin is fragile and is prone to blistering (caused by mild trauma or sweating).[6] After a few months hyperkeratosis develops with a dark grey or brown, ridged appearance on the ankles, knees and elbows.[4] Palms and soles are generally unaffected.[5] A slightly unpleasant, sweet odour may be present.[2]

A distinctive characteristic of IBS which is not present in other forms of ichthyosis is called the "Mauserung phenomenon" (Mauserung is german for "moulting" and was first described by H.W.Siemens). These are small patches of bare, apparently normal skin in the middle of areas of hyperkeratosis.[5][7]

As the sufferer ages the flaking and blistering should improve. The hyperkeratosis may grow more severe but more localized and is generally only present on flexural folds of the major joints.[4]

Diagnosis

Mild forms of IBS should be diagnosable from appearance and patient history alone. Severe cases of IBS are hard to distinguish from mild EHK.

A skin biopsy shows a characteristic damaged layer in the upper spinous level of the skin. Again it may be difficult to distinguish from EHK.

The gene causing IBS is known and so a definite diagnosis can be given by genetic testing. [4]

Genetics

IBS is an autosomal dominant genetic condition caused by a mutation in the gene for keratin 2e on chromosome 12.[4][8][9][10]:563 This means an affected person has a 50% chance of passing the condition on to their child. Around half of cases of IBS, however, have no parent with the condition and have the genetic fault due to a spontaneous mutation. [11]

Treatments

There is no cure for IBS but in the future gene therapy may offer a cure.

Treatments for IBS generally attempt to improve the appearance of the skin and the comfort of the sufferer. This is done by exfoliating and increasing the moisture of the skin. Common treatments include:

  • Emolients: moisturisers, petroleum jelly or other emolients are used, often several times a day, to increase the moisture of the skin.
  • Baths: long baths (possibly including salt) several times a week are used to soften the skin and allow exfoliation.
  • Exfoliating creams: creams containing keratolytics such as urea, salicylic acid and lactic acid may be useful.
  • Antiseptic washes: antiseptics may be used to kill bacteria in the skin and prevent odour.
  • Retenoids: very severe cases may use oral retinoids to control symptoms but these have many serious side effects including, in the case of IBS, increased blistering. [12]

References

  1. Freedberg, et al. (2003). Fitzpatrick's Dermatology in General Medicine. (6th ed.). McGraw-Hill. ISBN 0071380760.
  2. 2.0 2.1 Caputo, Ruggero and Tadini, Gianluca: Atlas of Genodermatoses, Page 19, Published by Taylor & Francis, 2005, ISBN 1841842516
  3. Siemens, H.W.: "Dichtung und Wahrheit ueber die Ichthyosis bullosa, mit Bemerkungen zur Systematik der Epidermolysen." Arch. Derm. Syph. 175: 590-608, 1937
  4. 4.0 4.1 4.2 4.3 4.4 4.5 OMIM (Online Mendelian Inheritance in Man), John Hopkins University, Ichthyosis Bullosa of Siemens
  5. 5.0 5.1 5.2 Harper, John; Oranje, Arnold P. and Prose, Neil S.: Textbook of Pediatric Dermatology, Page 1110, Published by Blackwell Science, 2000, ISBN 0865429391
  6. 6.0 6.1 Barnhill, Raymond L. and Crowson, A. Neil: Textbook of Dermatopathology, Page 349, Published by McGraw-Hill Professional, 2004, ISBN 0071396608
  7. Kirkham, Nigel and Lemoine, Nicholas R.: Progress in Pathology, Page 107, Published by Cambridge University Press, 2001, ISBN 1841100501
  8. Rothnagel JA, Traupe H, Wojcik S, Huber M, Hohl D, Pittelkow MR, Saeki H, Ishibashi Y, Roop DR (1994). "Mutations in the rod domain of keratin 2e in patients with ichthyosis bullosa of Siemens". Nat. Genet. 7 (4): 485–90. doi:10.1038/ng0894-485. PMID 7524919. Unknown parameter |month= ignored (help)
  9. Online Mendelian Inheritance in Man (OMIM) Keratin 2 -600194
  10. James, William; Berger, Timothy; Elston, Dirk (2005). Andrews' Diseases of the Skin: Clinical Dermatology. (10th ed.). Saunders. ISBN 0721629210.
  11. Elias, Peter M and Feingold, Kenneth R. Skin Barrier, Page 490, Published by CRC Press, 2005, ISBN 0824758153
  12. Vahlquist, Anders and Duvic, Madeleine: Retinoids and Carotenoids in Dermatology, Page 160, Published by CRC Press, 2007, ISBN 0849339928

Template:Scleroprotein disease

Template:WH Template:WS