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Auspitz's sign

From Wikipedia, the free encyclopedia

Auspitz's sign is the appearance of punctate bleeding spots when psoriasis scales are scraped off, named after Heinrich Auspitz.[1] It may also be seen in Darier's disease and actinic keratosis.[2]

Importantly, as with many eponymous clinical signs,[3][4] Heinrich Auspitz was not the first to discover the sign named after him. It was Auspitz's mentor at the Medical University of Vienna (Ferdinand von Hebra) and Parisian dermatologist Marie Devergie who first noted the punctate hemorrhages underlying psoriasis scales.[5]

This pinpoint bleeding results from a thinning of the epidermal layer overlying the tips of the dermal papillae. Blood vessels within the papillae are dilated and tortuous, and often bleed readily when the scale is removed.[6]

Although classically associated with psoriasis, subsequent research has found Auspitz's sign to be of very little diagnostic value for the disease. This is because several other diseases display the sign (including Darier's disease and actinic keratosis). Additionally, only a minority of psoriasis scales show it when removed (<18%).[7] This overall indicates that Auspitz's sign is neither highly sensitive nor specific for psoriasis, and thus should only be used in combination with other findings to make a diagnosis.[clarification needed]

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Transcription

References

  1. ^ Auspitz' symptom at Who Named It?
  2. ^ Freiman, Anatoli; Kalia, Sunil; O'Brien, Elizabeth A. (July 2006). "Dermatologic Signs". Journal of Cutaneous Medicine and Surgery. 10 (4): 175–182. doi:10.2310/7750.2006.00042. PMID 17234116. S2CID 44484524.
  3. ^ Woywodt, Alexander; Matteson, Eric (1 September 2007). "Head to Head: Should eponyms be abandoned? Yes". BMJ: British Medical Journal. 335 (7617): 424. doi:10.1136/bmj.39308.342639.AD. PMC 1962844. PMID 17762033.
  4. ^ Ferguson, Robert P.; Thomas, Deborah (2014). "Medical eponyms". Journal of Community Hospital Internal Medicine Perspectives. 4 (3): 10.3402/jchimp.v4.25046. doi:10.3402/jchimp.v4.25046. PMC 4120137. PMID 25147644.
  5. ^ "Acantholysis or the Auspitz sign? A revelation of the life of Carl Heinrich Auspitz". Indian Journal of Dermatology, Venereology and Leprology. 30 June 2017. Retrieved 26 December 2021.
  6. ^ Kumar; et al. (2010). Robbin's Text book of Pathology. New Delhi: Elsevier. p. 841. ISBN 978-81-312-1036-9.
  7. ^ Bernhard, J. D. (June 1990). "Auspitz sign is not sensitive or specific for psoriasis". Journal of the American Academy of Dermatology. 22 (6 Pt 1): 1079–1081. doi:10.1016/0190-9622(90)70155-b. ISSN 0190-9622. PMID 2370333. Retrieved 26 December 2021.
This page was last edited on 6 August 2023, at 19:56
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