| Epidermolysis bullosa acquisita | |
|---|---|
| Other names | Acquired epidermolysis bullosa [1] |
| Specialty |
Dermatology
 |
Epidermolysis bullosa acquisita, also known as acquired epidermolysis bullosa, is a longterm autoimmune blistering skin disease. [1] It generally presents with fragile skin that blisters and becomes red with or without trauma. [2] Marked scarring is left with thin skin, milia and nail changes. [3] It typically begins around age 50. [2]
It is caused by antibodies to type VII collagen within anchoring fibril structures located at the dermoepidermal junction in skin. [3] Damaged skin may become infected. [3]
Diagnosis is by observing the persistence of the condition, direct immunofluorescence, and detecting autoantibodies against type VII collagen. [2] It can appear similar to porphyria cutanea tarda, pemphigoid, pemphigus, dermatitis herpetiformis, or blistering drug eruption. [3] The condition is longterm and has no cure. [1] A good response may be seen with corticosteroids, either alone or combined with azathioprine or dapsone. [3]
It is rare, with around 0.08 to 0.5 new cases per million people per year, and it affects males and females equally. [2]
Signs and symptoms
It generally presents with fragile skin that blisters and becomes red with or without trauma. [2] Marked scarring is left with thin skin, milia and nail changes. [3] It typically begins around age 50. [2]
Cause
It is caused by antibodies to type VII collagen within anchoring fibril structures located at the dermoepidermal junction in skin. [3]
Diagnosis
Diagnosis is by observing the persistence of the condition, direct immunofluorescence, and detecting autoantibodies against type VII collagen. [2] It can appear similar to porphyria cutanea tarda, pemphigoid, pemphigus, dermatitis herpetiformis, or blistering drug eruption. [3]
Treatment
The condition is longterm and has no cure. [1] A good response may be seen with corticosteroids, either alone or combined with azathioprine or dapsone. [3]
Epidemiology
It is rare, with around 0.08 to 0.5 new cases per million people per year, and it affects males and females equally. [2]
See also
- List of cutaneous conditions
- List of target antigens in pemphigoid
- List of immunofluorescence findings for autoimmune bullous conditions
- List of human leukocyte antigen alleles associated with cutaneous conditions
References
- ^ a b c d "Orphanet: Acquired epidermolysis bullosa". www.orpha.net. Archived from the original on 30 July 2017. Retrieved 19 April 2019.
- ^ a b c d e f g h Kridin, Khalaf; Kneiber, Diana; Kowalski, Eric H.; Valdebran, Manuel; Amber, Kyle T. (August 2019). "Epidermolysis bullosa acquisita: A comprehensive review". Autoimmunity Reviews. 18 (8): 786–795. doi: 10.1016/j.autrev.2019.06.007. ISSN 1873-0183. PMID 31181325. S2CID 184486635.
- ^ a b c d e f g h i James, William D.; Elston, Dirk; Treat, James R.; Rosenbach, Misha A.; Neuhaus, Isaac (2020). "21. Chronic blistering dermatoses". Andrews' Diseases of the Skin: Clinical Dermatology (13th ed.). Edinburgh: Elsevier. p. 468-469. ISBN 978-0-323-54753-6.