Acne miliaris necrotica
{{Distinguish|Acne necrotica}}
{{Infobox medical condition (new)
| name = Acne miliaris necrotica
| synonyms = Acne varioliformis
| image =
| caption =
| pronounce =
| field = Dermatology
| symptoms = Itchy fluid-filled bumps on typically scalp
| onset =
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| types =
| causes = Inflammatory reaction to part of the hair follicle and S. aureus
| risks =
| diagnosis = Visualisation, culture
| differential =
| prevention =
| treatment = Antibiotics
| medication = Doxycycline
| prognosis =
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}}
Acne miliaris necrotica is a severe form of folliculitis of typically the scalp.{{cite web |title=Scalp folliculitis |url=https://dermnetnz.org/topics/scalp-folliculitis |website=dermnetnz.org |access-date=24 April 2023}} It presents as multiple fluid-filled bumps, sometimes occurring as solitary lesions that are usually very itchy.{{cite book |last1=James |first1=William D. |last2=Elston |first2=Dirk |last3=Treat |first3=James R. |last4=Rosenbach |first4=Misha A. |last5=Neuhaus |first5=Isaac |title=Andrews' Diseases of the Skin: Clinical Dermatology |date=2020 |publisher=Elsevier |isbn=978-0-323-54753-6 |page=245 |edition=13th |chapter-url=https://books.google.com/books?id=UEaEDwAAQBAJ&pg=PA245 |language=en |chapter=13. Acne}} Shortly after appearing, the bumps burst and dry up. There may be scarring.
Causes
The cause may be a result of an inflammatory reaction to part of the hair follicle and S. aureus.
Diagnosis
Diagnosis is by visualisation and culture of the lesions.
Treatment
There are multiple medications that are able to treat acne varioliformis.{{Cite web|url=http://www.mdedge.com/cutis/dsm/617/acne/acne-necrotica-varioliformis|title=Acne Necrotica (varioliformis)|website=www.mdedge.com|access-date=2017-06-11|archive-url=https://web.archive.org/web/20171109191211/http://www.mdedge.com/cutis/dsm/617/acne/acne-necrotica-varioliformis|archive-date=2017-11-09|url-status=dead}}{{Cite news|url=http://www.clinicaladvisor.com/dermatology/acne-necrotica-varioliformis/article/592037/|title=Acne Necrotica (varioliformis)|date=2016-12-20|work=Clinical Advisor|access-date=2017-06-11|language=en|archive-date=2017-11-09|archive-url=https://web.archive.org/web/20171109191145/http://www.clinicaladvisor.com/dermatology/acne-necrotica-varioliformis/article/592037/|url-status=dead}}
= Topical =
- Clindamycin 1% lotion or Benzoyl peroxide/clindamycin gel
- Erythromycin 2% gel
- 1% hydrocortisone cream
= Systemic =
- Doxycycline 50 mg twice daily
- Isotretinoin 0.5 mg/kg daily
Epidemiology
{{Empty section|date=July 2024}}
History
The condition was first described by Sabouraud in 1928.{{cite journal |last1=Montgomery |first1=Hamilton |title=Acne miliaris necrotica of the scalp|journal=Archives of Dermatology |date=1 July 1937 |volume=36 |issue=1 |pages=40 |doi=10.1001/archderm.1937.01480010044006 |url=https://jamanetwork.com/journals/jamadermatology/article-abstract/518500|url-access=subscription }}
See also
References
{{Reflist}}
External links
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| ICD10 = {{ICD10|L|70|2|l|60}}
| ICD9 = {{ICD9|706.0}}
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{{Disorders of skin appendages}}