actinic dermatitis

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]

ACTINIC DERMATITIS