actinic


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actinic

[‚ak′tin·ik]
(physics)
Pertaining to electromagnetic radiation capable of initiating photochemical reactions, as in photography or the fading of pigments.

actinic

Pertaining to shortwave electromagnetic radiation capable of initiating photochemical reactions, as in photography or the fading of pigments. Because of the particularly strong action of ultraviolet radiation on photochemical processes, the term has come to be almost synonymous with ultraviolet, as in actinic rays.
References in periodicals archive ?
In summary, we present a case and dermoscopic findings for a 33-year-old woman whose clinical and histopathologic features were not consistent with HA, HV, lichen nitidus, PMLE, and actinic prurigo.
Medline search (January 15,2018) with conjunction of the terms "'hydroxycarbamide' AND 'skin', 'hydroxycarbamide' AND ('actinic' OR 'keratosis')" returned 436 and 34 articles, respectively.
Histological examination confirmed features consistent with actinic keratosis on the eyelid margin and tarsal conjunctiva (Figures 2, 3(a), and 3(b)).
Therefore, in our patient, SCC and actinic keratosis developed in a long-standing vitiligo skin due to chronic sun exposure for a long period of 35 years.
An actinic keratosis (AK), also known as a solar keratosis, is a crusty, scaly growth caused by damage from exposure to ultraviolet (UV) radiation.
"The greater efficacy of calcipotriol plus 5-FU versus Vaseline plus 5-FU treatment in eliminating actinic keratoses remained highly significant after controlling for the baseline actinic keratosis count, age, and sex of the participants," they wrote (J Clin Invest.
Disseminated superficial actinic porokeratosis is characterized by small (0.5 -1 cm), annular, brown macules, with raised peripheral ridges, symmetrical, usually asymptomatic or slightly itchy [5].
Chen and Australian colleagues enrolled 386 people in their multicenter, double-blind trial (Oral Nicotinamide to Reduce Actinic Cancer [ONTRAC]).
"This is the first study to examine the association between atopic dermatitis and actinic keratosis [AK].
Researchers reported the outcomes of the Phase 3 Oral Nicotinamide to Reduce Actinic Cancer (ONTRAC) Study in the Journal of Clinical Oncology this year.