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Chapter 2. Acne Vulgaris

Individual Lesions

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Fig. 2-2

Comedones may be “open” (black) and “closed” (white).


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Fig. 2-3

Comedones, “open” and “closed,” the latter being synonymous with milia.


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Fig. 2-4

“Open” comedones are present mostly, but milia are, too.


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Fig. 2-5

A cluster of comedones situated on an uncommon site.


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Fig. 2-6

Comedones, inflamed papules, and tiny atrophic scars.


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Fig. 2-7

Comedones, inflamed papules, and tiny pitted scars.


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Fig. 2-8

Comedones, patulous infundibula, and small atrophic scars.


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Fig. 2-9

Comedones, patulous infundibula, and tiny atrophic scars.


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Fig. 2-10

Inflamed papules and nodules, as well as scars. The nodules represent the effects of rupture of infundibular cysts.


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Fig. 2-11 A

The upper part of the chest is a common site, as is the upper part of the back.


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Fig. 2-11 B

The upper part of the chest is a common site, as is the upper part of the back.


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Fig. 2-12 A

Comedones, patulous infundibula, inflamed papules, pustules, hemorrhagic crusts, and scars; (b) closeup view of (a).


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Fig. 2-12 B

Comedones, patulous infundibula, inflamed papules, pustules, hemorrhagic crusts, and scars; (b) closeup view of (a).


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Fig. 2-13

Comedones, patulous ostia of infundibula, inflamed papules, inflamed nodules (ruptured infundibular cysts), and scars.


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Fig. 2-14

Inflamed papules, some of them excoriated (“acneexcoriée des jeunes filles” because it occurs mostlyin young girls).


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Fig. 2-15

Comedones, inflamed papules (some of them excoriated), and scars.


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Fig. 2-16

Comedones, inflamed papules, and a few pustules.


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Fig. 2-17

Inflamed papules and papulopustules.


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Fig. 2-18

Patulous ostia of infundibula, inflamed papules, pustules, and scars.


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Fig. 2-19

Inflamed papules and nodules, as well as papulopustules, patulous ostia, and scars.


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Fig. 2-20

Patulous ostia of infundibula, inflamed papules, pustules, and scars.


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Fig. 2-21

Inflamed papules and papulopustules, and residual hyperpigmented atrophic scars.


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Fig. 2-22

Inflamed papules, papulopustules, pustules, and crusts.


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Fig. 2-23

Inflamed papules, papulopustules, and pustules.


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Fig. 2-24

Inflamed papules, inflamed nodules, and papulopustules.


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Fig. 2-25

Inflamed papules, pustules, and crusts.


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Fig. 2-26

Inflamed papules, papulopustules, erosions, and hemorrhagic crusts. The erosions are secondary to excoriation.


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Fig. 2-27

Excoriated papules.


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Fig. 2-28

Inflamed papules and plaques, erosions, hemorrhagic crusts, and scars.


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Fig. 2-29

Inflamed plaque, erosions, hemorrhagic crusts, and pustules.


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Fig. 2-30

Inflamed papules and plaques, hemorrhagic crusts, and scars.


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Fig. 2-31 A

Inflamed papules, erosions, large vegetative hemorrhagic crusts, and scars.


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Fig. 2-31 B

Inflamed papules, erosions, large vegetative hemorrhagic crusts, and scars.


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Fig. 2-32

Papules, nodules, scars, and crusts.


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Fig. 2-33

Pitted scars.


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Fig. 2-34

Atrophic scars.


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Fig. 2-35

Atrophic and hypertrophic scars.


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Fig. 2-36

Many small keloids.


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Fig. 2-37

Large keloids on the chest, and inflamed papules and scars on the face.


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Fig. 2-38

Keloids.