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Chapter 2. Acne Vulgaris

Hidradenitis Suppurativa

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Fig. 2-45

Patulous ostia of infundibula, pus at ostia of sinus tracts, noninflamed and inflamed nodules, an ulcer, and linear scars.


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Fig. 2-46

Markedly patulous ostia of infundibula, some representing the opening of sinuses, papules, nodules, and scars.


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Fig. 2-47

Patulous ostia of sinuses, some having discharged pus, nodules, and hypertrophic scars.


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Fig. 2-48

Scars at sites of sinuses.


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Fig. 2-49

Patulous ostia of sinuses and depressed hyperpigmented scars.