Bujnauskajte2017-01-01Full Text Available Different face skin diseases (basal cell carcinoma, actinic keratosis, rosacea, solar elastosis, etc. Could clinically manifest itself as erythematic patches, pimples or plagues. It is very hard to make the clinical exclusion in some cases of these diseases since their characters can partially overlap or certain lesion can mimic another one especially in the cases of skin areas affected with sun.
Therefore, the histopathological analysis remains the “golden standard” of the dermatological diagnosis at skin diseases. Our study has shown that certified dermatologists detect actinic keratosis (AK of face/head skin of I/II levels very well. Verdicts of dermatologists and pathomorfologists are congruent on account of diagnosis in 90,7% cases.
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Diseases clinically excluded as AK revealed as malignant neoplasms (basal cell carcinoma in less than 1% of case lesions.T. Sukhova2016-01-01Full Text Available The results of a study on the effectiveness of photodynamic therapy with a photosensitizer fotoditazin and cryotherapy for actinic keratosis are represented in the article. The study included 80 patients with 215 lesions, among them erythematous form of actinic keratosis was diagnosed in 151 (70.2% cases, hyperkeratotic form – in 46 (21.4% cases, a pigmented form – in 12 (5.6% and an atypical variant of the disease – in 6 (2.8% cases. According to histological type the distribution of tumor was as follows: 19 (54.3% cases were diagnosed as hypertrophic type, 6 (17.1% – atrophic, 8 (22.9% – bowenoid and 2 (5.7% – pigmented type. Patients from the study group received one session of photodynamic therapy using laser unit 'LAMI' (662 nm after 2 hours of application of fotoditazin 0.5% gel at dose of 0,2-0,3 ml per 1 cm2 of actinic keratosis focus with the following parameters: the energy density of the laser radiation – 200 J/cm2, power density – 0.14–0.48 W/cm2. In the control group patients underwent cryotherapy with liquid nitrogen with an exposure of 30-60 sec.
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The comparative analysis of the immediate results showed a tendency for the efficacy of photodynamic therapy to increase (the rate of complete regression was 92.5% compared with cryotherapy (85.0% (p0,05. There were also a tendency for long-term results after photodynamic therapy to improve: three-year recurrence-free survival was 94.6% and 88.2%, respectively. For the photodynamic therapy there were significantly fewer adverse reactions, the epithelization time in lesions was significantly shorter. Compared with cryotherapy the photodynamic therapy provided significantly better cosmetic results (p.Friis, K B E; Themstrup, L; Jemec, G B E2017-06-01Optical coherence tomography (OCT) is a real-time non-invasive imaging tool, introduced in dermatology in the late 1990s.
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OCT uses near-infrared light impulses to produce images which can be displayed in cross-sectional and en-face mode. The technique has been used to image skin diseases especially non-melanoma skin cancer including actinic keratosis (AK). Morphological characteristics of AK can be visualized in OCT images and can be used for diagnosis as well as disease monitoring. A systematic review of original papers on AK and OCT was performed on 31.03.16 and 24.10.16 in the major databases Pubmed, MEDLINE, EMBASE, Cochrane and Svemed. Through database search and other sources, we identified 1366 titles of which 21 studies met the inclusion criteria and were used for further investigation.