Papule
From Wikipedia, the free encyclopedia
| Papule | |
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| Fibrous papule of the nose | |
| Classification and external resources |
A papule (/ˈpæpjuːl/)[1] is a circumscribed, solid elevation of skin with no visible fluid, varying in size from a pinhead to 1 cm.[2][nb 1] It can be brown, purple, pink or red in color, and can cluster into a papular rash. Papules may open when scratched and become infected and crusty.[3] Larger non-blisterform elevated lesions may be termed nodules.
Papules may have different shapes and are sometimes associated with other features such as crusts or scales.
Causal diseases[edit]
There are many skin diseases which develop papules, such as Lichen planus, a skin disease which classically forms polygonal, purple papules.[4]
See also[edit]
Footnotes[edit]
- ^ With regard to the quote "...varying in size from a pinhead to 1cm," depending on which text is referenced, some authors state the cutoff between a papule and a plaque as 0.5cm, not 1cm, while others state an entirely different measurement. Therefore, for this article, the 1cm cutoff is used which is discussed in Andrews' Diseases of the Skin: Clinical Dermatology (see references), a work considered by some dermatologists as an authority on this subject matter. See Lack of Standardization for complete discussion.
References[edit]
- ^ "Papule definition and meaning - Collins English Dictionary".
- ^ James, William; Berger, Timothy; Elston, Dirk (2005) Andrews' Diseases of the Skin: Clinical Dermatology (10th ed.). Saunders. Page 15. ISBN 0-7216-2921-0.
- ^ "papule" at Dorland's Medical Dictionary
- ^ "Information on Pimple". 1 August 2016.
