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Module title = Tutorial: Derm Morphology
Lesson title = Pustule
This is lesson 10 of 18 in this module
Pustule
A primary morphology
Definition:
Palpable: yes
Size: generally less than 1cm but can be bigger
Colour: usually white or yellow, filled with purulent (pus) fluid
General Explanation for a Pustule:
Collection of fluid, most often pus (dead white blood cells), that tends to occur in the epidermis. Think of a pustule as a vesicle but filled with pus.
Of note, you can get:
“Follicularly centred” pustules:
Pustules around a hair follicle
"Non-follicularly centred" pustules:
pustules that arise anywhere and do not need to be associated/around a hair follicle.
Examples:
Follicularly centred pustules:
Acne vulgaris = acne pustules
Folliculitis = Infection of hair follicles, most often with bacteria
Non-follicularly centred pustules:
Pustular psoriasis = unique form of psoriasis that presents with pustules, most often on the palms and soles
Acute generalized exanthematous pustulosis (AGEP) = Generally thought of as a type of drug eruption
Images:
Lesson 10 of 18
That was the last lesson!
