Alopecia Areata: Clinical Perspective and an Insight into Pathogenesis

A clinical study of alopecia areata in Mexico

“…The infections found in AA patients are also very frequent in the general population, as reported by others 1,8 . These findings require further investigation, especially if they are related to immunologic problems.…”

“…Alopecia areata (AA) manifests in its limited form as circumscribed, round/oval patches of hair loss with well‐demarcated borders between normal and affected scalp. Often, it has a sudden onset of presentation 1,2 . Few clinical studies of AA have been performed in Mexico 3 .…”

Acute diffuse and total alopecia: A new subtype of alopecia areata with a favorable prognosis

“…5 Typically, lesions of AA manifest limited forms and are well circumscribed, round, or oval patches of hair loss with well-defined borders between the normal and the affected scalp. 6 Although AA usually starts with focal lesions of hair loss, developing to appear as any of several clinical forms, it may begin as diffuse alopecia. 7 The different clinical forms are singlepatch AA; multiple-patch AA (including reticular, total, universal, and ophiasis), and diffuse AA.…”

Alopecia Areata in the Indian Subcontinent

“…Alopecia areata (AA), which has been known by several names in the past, 1 causes nonscarring patchy hair loss that can affect men, women, and children 2,3 . The condition can manifest with a sudden or menacing onset, and the affected area appears as a bald smooth patch devoid of scaling, scarring, or atrophy.…”

“…The hair loss is usually asymptomatic but may be accompanied by mild itching and rarely pain. Nail changes may also be observed 3 . Many clinical variants of AA, namely reticular, diffuse, ophiasis, alopecia totalis, and universalis have been described 3 …”