Two Main Zones

The axillary and the inguino-crural zones are the two main areas involved in HS [1, 2, 7]. The diagnosis is often most obvious in the axillary region. Involvement of axillae may extend to the lateral part of the chest (see Fig. 3.14) and sometimes achieve connection with lesions on the breast, where they may be misdiagnosed as a breast abscess. Rope-like hypertrophic scarring is particularly prominent in advanced axillary lesions.

Inguino-crural or groin involvement is more frequent than axillary involvement and is especially frequent in women: the inner thighs (frequently), the mons pubis (see Fig. 3.15) and the labia major may be involved. Groin involvement is less frequent in men, and scrotal localization is unusual. Differential diagnoses should therefore be particularly strongly considered for scrotal lesions.

Fig. 3.13. Epidermal (epithelial) cyst

(3-5 cm) epidermal cysts, which can also be observed on the trunk or face of patients with HS (see Fig. 3.13). Clinically, these cysts appear to be associated with primary elements of HS and offer a positive clue to the possible efficacy of retinoids in the treatment. Other lesions such as acne or pilonidal cyst are covered in Chap. 6.

How To Reduce Acne Scarring

How To Reduce Acne Scarring

Acne is a name that is famous in its own right, but for all of the wrong reasons. Most teenagers know, and dread, the very word, as it so prevalently wrecks havoc on their faces throughout their adolescent years.

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