actinic dermatitis


Also found in: Dictionary, Thesaurus, Encyclopedia, Wikipedia.

pho·to·der·ma·ti·tis

(fō'tō-der'mă-tī'tis),
Dermatitis caused or elicited by exposure to sunlight; may be phototoxic or photoallergic, and can also result from topical application, ingestion, inhalation, or injection of mediating phototoxic or photoallergic material.
See also: photosensitization.
Synonym(s): actinic dermatitis
[photo- + G. derma, skin, + -itis, inflammation]

chronic actinic dermatitis

A photosensitive dermopathy that occurs in all races, which primarily affects elderly men, and may be linked to endogenous eczema, photoallergic or allergic contact dermatitis, drug photosensitivity, polymorphic light eruption or, rarely, HIV infection.

Chronic actinic dermatitis, key features
• Reduction in the minimal erythema dose to UVA, UVB and/or visible light;
• Persistent eczematous eruption that predominantly affects sun-exposed skin, but which may extend to covered areas;
• Histopathologic changes consistent with chronic eczema ± cutaneous lymphoma-like changes.

pho·to·der·ma·ti·tis

(fō'tō-dĕr'mă-tī'tis)
Dermatitis caused or elicited by exposure to sunlight; may be phototoxic or photoallergic, and can result from topical application, ingestion, inhalation, or injection of mediating phototoxic or photoallergic material.
See also: photosensitization
Synonym(s): actinic dermatitis, actinodermatitis.
[photo- + G. derma, skin, + -itis, inflammation]
Enlarge picture
ACTINIC DERMATITIS

actinic dermatitis

A chronic red or eczematous rash, usually on the face or exposed skin surfaces, that typically results from exposure and sensitization to ultraviolet rays. Adults over age 50 may be affected. See: illustration Synonym: photosensitivity dermatitis
See also: dermatitis
References in periodicals archive ?
Patients with chronic actinic dermatitis usually present with persistent erythematous skin lesions on the face and all other sun-exposed surfaces.
In milder cases, the lesions of chronic actinic dermatitis can be cleared using topical tacrolimus or topical corticosteroids.
Patients of either sex, presenting to our department, clinically suggestive of having chronic actinic dermatitis were enrolled.
Azathioprine produced an objective response in all but one of our patients with chronic actinic dermatitis. Six (40%) of the 15 patients showed near complete clearance i.e.
The data reported here support the already reported literature that azathioprine can be an effective and useful drug in the management of chronic actinic dermatitis. It can provide an answer to this chronic and socially disabling condition provided that it is used judiciously and the treatment is carefully monitored.
Chronic actinic dermatitis: an immunologic and photobiologic study.
Chronic actinic dermatitis: an analysis of 51 patients in the United States and Japan.