Hidradenitis is a term used to describe diseases in which the histologic abnormality is primarily an inflammatory infiltrate around the eccrine glands. This group includes neutrophilic eccrine hidradenitis

Neutrophilic eccrine hidradenitis

Neutrophilic eccrine hidradenitis usually is a cutaneous complication of chemotherapy, but it also can occur because of other reasons. It consist of fever and non specific skin lesions. It is rare, and self-limited...

 and recurrent palmoplantar hidradenitis

Recurrent palmoplantar hidradenitis

Recurrent palmoplantar hidradenitis is primarily a disorder of healthy children and young adults, characterized by lesions that are primarily painful, subcutaneous nodules on the plantar surface, resembling...

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It can also be defined more generally as an inflammation of sweat gland

Sweat gland

Sweat glands, or sudoriferous glands, are small tubular structures of the skin that produce sweat. There are two kinds of sweat glands:...

s.

The term hidradenitis suppurativa

Hidradenitis suppurativa

Hidradenitis suppurativa is a skin disease that most commonly affects areas bearing apocrine sweat glands or sebaceous glands, such as the underarms, breasts, inner thighs, groin and buttocks.-Overview:...

refers to a chronic cutaneous condition characterized by scarring of the apocrine sweat glands.