Alopecia areata
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Notes
Alopecia areata
Pathology
Keratotic skin disorders
Actinic keratosis
Papulosquamous and inflammatory skin disorders
Atopic dermatitis
Contact dermatitis
Lichen planus
Pityriasis rosea
Psoriasis
Seborrhoeic dermatitis
Urticaria
Skin infections
Cellulitis
Erysipelas
Impetigo
Necrotizing fasciitis
Candida
Malassezia (Tinea versicolor and Seborrhoeic dermatitis)
Pediculus humanus and Phthirus pubis (Lice)
Sarcoptes scabiei (Scabies)
Human herpesvirus 6 (Roseola)
Measles virus
Parvovirus B19
Rubella virus
Varicella zoster virus
Coxsackievirus
Herpes simplex virus
Human papillomavirus
Poxvirus (Smallpox and Molluscum contagiosum)
Varicella zoster virus
Integumentary system pathology review
Acneiform skin disorders: Pathology review
Bacterial and viral skin infections: Pathology review
Papulosquamous and inflammatory skin disorders: Pathology review
Pigmentation skin disorders: Pathology review
Skin cancer: Pathology review
Vesiculobullous and desquamating skin disorders: Pathology review
Viral exanthems of childhood: Pathology review
Assessments
Alopecia areata
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Alopecia areata
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Summary
Alopecia areata is a type of hair loss that usually affects hair follicles. It can occur in anyone, of any age and gender. It causes patchy hair loss, typically along the scalp, but it can also involve the eyebrows, eyelashes, and other body hair. In most cases, only small patches are affected and the hair will eventually regrow on its own. However, in some cases the hair loss can be more severe and widespread, involving large areas of the scalp or even all over the body.
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