n. an occupational acne-like skin disorder that occurs after regular contact with chlorinated hydrocarbons. These chemicals are derived from oil and tar products; ‘cutting oils’ used in engineering also cause the disease. The skin develops blackheads, papules, and pustules, mainly on hairy parts (such as the forearm). Warts and skin cancer may develop after many years of exposure to these chemicals.
(acne vulgaris) n. a common inflammatory disorder of the sebaceous glands. These grease-producing glands are under androgen control, but the cause of acne is unknown. It typically involves the face, back, and chest and is characterized by the presence of blackheads with papules, pustules, and – in more severe cases – cysts and scars. Acne is readily treatable. Mild cases respond to topical therapy with *benzoyl peroxide, while more refractory conditions require treatment with long-term antibiotics or (for treating women only) the oral contraceptive pill; severe or cystic acne can be treated with oral *isotretinoin. Exogenous or occupational factors, such as occlusion from tight or impermeable clothes, make-up, or chemicals, may trigger or exacerbate acne (see chloracne).... acne
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