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A circumscribed, superficial elevation of the skin, up to 1.0 cm in diameter, containing purulent material. [L. pustula]
- spongiform p. of Kogoj an epidermal p. formed by infiltration of neutrophils into necrotic epidermis in which the cell walls persist as a spongelike network; seen in pustular psoriasis.
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1) a small circumscribed elevation of the skin containing pus and having an inflamed base
2) a small often distinctively colored elevation or spot resembling a blister or pimple
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n.
a small pus-containing blister on the skin.
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pus·tule (pusґtūl) [L. pustula] a visible collection of pus within or beneath the epidermis. pustular adj
Pustules.
Medical dictionary. 2011.