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Photosensitive Dermatitis
Definition 1
Dermatitis caused or precipitated by exposure to ultraviolet sunlight, or by mediating phototoxic or photoallergic material in response to ultraviolet sunlight. (NCI Thesaurus)
Definition 2
Abnormal responses to sunlight or artificial light due to extreme reactivity of light-absorbing molecules in tissues. It refers almost exclusively to skin photosensitivity, including sunburn, reactions due to repeated prolonged exposure in the absence of photosensitizing factors, and reactions requiring photosensitizing factors such as photosensitizing agents and certain diseases. With restricted reference to skin tissue, it does not include photosensitivity of the eye to light, as in photophobia or photosensitive epilepsy. (NLM, Medical Subject Headings)
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