Papule

Papule
Fibrous papule of the nose
Classification and external resources
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Papule and Plaque

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]} They can be brown, purple, pink or red in color, and can cluster into a papular rash. The papules may open when scratched and become infected and crusty.^[3] Larger non-blisterform elevated lesions may by 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.^{[citation needed]}

See also[edit]

• Pearly penile papules
• Skin lesion
• Skin disease
• List of cutaneous conditions

Footnotes[edit]

1. ^ 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]