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Actinic keratosis

Glynis Ablon
Within the field of dermatology, advances in the use of light emitting diodes (LEDs) have led to their clinical application for a variety of medical and cosmetic uses. Of note, one phototherapy device has demonstrated beneficial effects over a range of clinical applications (Omnilux™; GlobalMed Technologies, Glen Ellen, California). The study included a literature review of published studies. Using LEDs with frequencies of 415nm (blue), 633nm (red), and 830nm (infrared), this device has demonstrated significant results for the treatment of medical conditions, including mild-to-moderate acne vulgaris, wound healing, psoriasis, squamous cell carcinoma in situ (Bowen's disease), basal cell carcinoma, actinic keratosis, and cosmetic applications...
February 2018: Journal of Clinical and Aesthetic Dermatology
Chao-Chun Yang, Tak-Wah Wong, Chih-Hung Lee, Chien-Hui Hong, Chung-Hsing Chang, Feng-Jie Lai, Shang-Hung Lin, Ching-Chi Chi, Tzu-Kai Lin, Hsi Yen, Chin-Han Wu, Hamm-Ming Sheu, Cheng-Che E Lan
BACKGROUND: Currently available topical treatments for actinic keratosis (AK) are associated with substantial side-effects. OBJECTIVES: To evaluate the efficacy and safety of topical SR-T100 gel in treating AK. METHODS: A multicenter, randomized, double-blinded phase III trial was conducted. Patients with at least two clinically visible AK were enrolled and a punch biopsy was performed on one of the AK to confirm the diagnosis. This study consisted of up to 16-week treatment and 8-week post-treatment periods...
March 2, 2018: Journal of Dermatological Science
Jean Yoon, Ciaran S Phibbs, Adam Chow, Martin A Weinstock
BACKGROUND: It is unknown whether treatment costs of Keratinocyte Carcinoma (KC) and Actinic Keratosis (AK) can be lowered by spending more on chemoprevention. OBJECTIVE: We examine the impact of one-course treatment of topical fluorouracil on the face and ears on KC and AK treatment costs over three years. METHODS: The VAKCC trial compared the efficacy of topical fluorouracil cream, 5%, vs vehicle control cream for reducing KC risk. Trial data and administrative data on costs and utilization were analyzed to measure post-randomization encounters and treatment costs for KC and AK care...
March 2, 2018: Journal of the American Academy of Dermatology
M T Fernández-Figueras, X Saenz, P Vargas, C T Thompson, C Carrato, L Puig, C Ferrándiz, A Ariza
BACKGROUND: Actinic keratosis (AK) may show extension down follicules, not only in cases with full-thickness epidermal atypia ("bowenoid" AK), but also in cases with atypia limited to the epidermal basalis. Previous studies have demonstrated that in bowenoid AK, follicular extension is usually superficial, being limited to the upper follicular segment. Little is known about the depth of follicular involvement in cases of iSCC arising from AK and the role of the follicle in iSCC pathogenesis...
February 28, 2018: Journal of the European Academy of Dermatology and Venereology: JEADV
Lindita Zendeli-Bedjeti, Mirjana Popovska, Aneta Atanasovska-Stojanovska, Sotirija Duvlis
Oral premalignant lesions (OPLs) and numerous alterations of oral mucosa remain unsolved due to their complex etiopathogenesis. Human papillomaviruses (HPVs), in particular, have been reported as the possible risk factors or cofactors. The aim of the study was to determine the association of different HPV types with oral premalignant lesions, and the potential role of smoking and alcohol use. Eighty patients (mean age ± SD, 52.45±5.56) of both genders, 19 (23.75%) male and 61 (76.25%) female, were enrolled in the study...
September 2017: Acta Clinica Croatica
I Longo, C Serra-Guillén
OBJECTIVE: This study was aimed to examine patients' knowledge, behaviours and attitudes regarding actinic keratosis (AK) lesions and the impact of the disease on patients' quality of life (QoL). METHODS: Observational study of patients with AK lesions in Spain. QoL was evaluated with the validated version of Spanish AKQoL questionnaire. Skin self-examination, sun-exposure, habits and attitudes towards AK's treatment were recorded using different questionnaires...
February 21, 2018: Actas Dermo-sifiliográficas
L Torezan, B Grinblat, M Haedersdal, N Valente, C Festa-Neto, R M Szeimies
BACKGROUND: Topical photodynamic therapy (PDT) is an approved treatment for actinic keratosis (AK). To enhance the efficacy of PDT for AKs, physical (ablative lasers and microneedling) and chemical (pro-differentiating drugs) pretreatments have been suggested. OBJECTIVES: To compare the efficacy and safety of the combination of topical calcipotriol (CAL) before methylaminolevulinate (MAL)-PDT for AKs of the scalp versus conventional MAL-PDT in a randomized controlled-clinical trial...
February 24, 2018: British Journal of Dermatology
Yi-Quan Xiong, Yun Mo, Yu-Qi Wen, Ming-Ji Cheng, Shu-Ting Huo, Xue-Jiao Chen, Qing Chen
Optical coherence tomography (OCT) is an emergent imaging tool used for noninvasive diagnosis of skin diseases. The present meta-analysis was carried out to assess the accuracy of OCT for the diagnosis of skin cancer. We conducted a systematic literature search though EMBASE, Medline, PubMed, the Cochrane Library, and Web of Science database for relevant articles published up to June 6, 2017. The quality of the included studies was assessed using the QUADAS-2 tool and the Oxford Levels of Evidence Scale. Statistical analyses were conducted using the software Meta-Disc version 1...
February 2018: Journal of Biomedical Optics
Jimmy Lam, Samantha R Ellis, Raja K Sivamani
Eruptive actinic keratosis (AK) consequent to systemic chemotherapy can be confused with drug allergies. We present the first case of inflamed AKs in one patient after receiving combination therapy with pemetrexed and carboplatin.A 68-year-old woman with non-small cell lung adenocarcinoma (NSCLC) presented with numerous pruritic ill-defined, gritty, erythematous papules consistent with AKs on her upper chest, upper back, and arms two weeks after completing the first cycle of combination therapy with carboplatin and pemetrexed...
October 15, 2017: Dermatology Online Journal
Alberto Conde-Taboada, Bárbara Mercado, Beatriz Aranegui, Elena González-Guerra, Eduardo López-Bran
Actinic keratoses are cutaneous lesions that appear as the result of the proliferation of atypical keratinocytes. These lesions are considered pre-malignant and they can progress to squamous cell carcinoma. Ingenol mebutate has been approved as an effective treatment for AK on the face and trunk. We studied the local skin reactions to this therapy. Data about local skin reactions were collected in a series of 5 patients with photographic documentation, a visual analog scale, and a ranking of satisfaction of the patient...
September 15, 2017: Dermatology Online Journal
U Wollina, B Gaber, A Koch
Actinic keratosis (AK) is a premalignant epithelial disease that develops on skin chronically exposed to ultraviolet-light. For outdoor workers, AK is an occupational hazard with a potential for malignant transformation into squamous cell carcinoma. Various topical treatments are used to treat AK's. Photodynamic therapy (PDT) promises the highest cure rates. We performed a prospective single center trial evaluating effects of PDT treatment for field cancerization due to occupational exposure to ultraviolet light irradiation in patients unresponsive to the treatment regimen with topical diclofenac gel...
January 2018: Georgian Medical News
Steven Nisticò, Ester Del Duca, Valeria Torchia, Micaela Gliozzi, Ugo Bottoni, Carolina Muscoli
Actinic keratosis (AK) is a clinical condition characterized by keratinocytic dysplastic lesions of the epidermis, affecting individuals chronically exposed to sunlight. Topical therapies allow the treatment of a whole area of affected skin and currently include diclofenac sodium gel, 5-fluorouracil cream, 5-fluorouracil and acetylsalicylic acid solution, imiquimod cream, and ingenol mebutate gel. Due to the comparable efficacy of 3% diclofenac, ingenol mebutate, and 3.75% imiquimod in treating AK multiple lesions, a pharmacoeconomic evaluation of cost-effectiveness of the three treatments was needed...
January 2018: International Journal of Immunopathology and Pharmacology
E Bagatin
No abstract text is available yet for this article.
February 2018: British Journal of Dermatology
Seung Seog Han, Myoung Shin Kim, Woohyung Lim, Gyeong Hun Park, Ilwoo Park, Sung Eun Chang
We tested the use of a deep learning algorithm to classify the clinical images of 12 skin diseases-basal cell carcinoma, squamous cell carcinoma, intraepithelial carcinoma, actinic keratosis, seborrheic keratosis, malignant melanoma, melanocytic nevus, lentigo, pyogenic granuloma, hemangioma, dermatofibroma, and wart. The convolutional neural network (Microsoft ResNet-152 model; Microsoft Research Asia, Beijing, China) was fine-tuned with images from the training portion of the Asan dataset, MED-NODE dataset, and atlas site images (19,398 images in total)...
February 8, 2018: Journal of Investigative Dermatology
Manuel Rodríguez-Paredes, Felix Bormann, Günter Raddatz, Julian Gutekunst, Carlota Lucena-Porcel, Florian Köhler, Elisabeth Wurzer, Katrin Schmidt, Stefan Gallinat, Horst Wenck, Joachim Röwert-Huber, Evgeniya Denisova, Lars Feuerbach, Jeongbin Park, Benedikt Brors, Esther Herpel, Ingo Nindl, Thomas G Hofmann, Marc Winnefeld, Frank Lyko
Cutaneous squamous cell carcinoma (cSCC) is the second most common skin cancer and usually progresses from a UV-induced precancerous lesion termed actinic keratosis (AK). Despite various efforts to characterize these lesions molecularly, the etiology of AK and its progression to cSCC remain partially understood. Here, we use Infinium MethylationEPIC BeadChips to interrogate the DNA methylation status in healthy, AK and cSCC epidermis samples. Importantly, we show that AK methylation patterns already display classical features of cancer methylomes and are highly similar to cSCC profiles...
February 8, 2018: Nature Communications
Aristea Stravodimou, Vassiliki Tzelepi, Helen Papadaki, Athanasia Mouzaki, Sophia Georgiou, Maria Melachrinou, Eleni P Kourea
BACKGROUND: Tumor infiltrating lymphocytes (TILs) represent important regulators of carcinogenesis. Cutaneous invasive squamous cell carcinoma (inSCC) develops through precursor lesions, namely in situ squamous cell carcinoma (isSCC) and actinic keratosis (AK), representing a natural model of carcinogenesis. The study evaluates TIL subpopulations in inSCC and its precursors by comparing two semi-quantitative scoring systems, and assesses the presence of regulatory T-cells (Tregs) in these lesions...
February 8, 2018: Journal of Cutaneous Pathology
Serge Mordon, Anne S Vignion-Dewalle, Elise Thecua, Claire Vicentini, Cyril Maire, Pascal Deleporte, Gregory Baert, Fabienne Lecomte, Laurent Mortier
Natural DayLight-mediated PhotoDynamic Therapy (NDL-PDT) is an efficacious treatment option for thin actinic keratosis that offers advantages over conventional PDT in terms of tolerability, treatment duration, and cost. It is now accepted that the minimum criteria required for effective NDL-PDT is a dose of 4 J/cm2 with a treatment time of 2 h and a minimum temperature of 10°C, corresponding to a minimum illuminance of 11 000 lux. This value is easily achievable: 20 000 lux can be obtained during a typical overcast day at midday...
February 7, 2018: Giornale Italiano di Dermatologia e Venereologia: Organo Ufficiale, Società Italiana di Dermatologia e Sifilografia
Domenico Piccolo, Dimitra Kostaki
Photodynamic therapy (PDT) with topical 5-aminolevulinic acid (ALA) or methyl aminolevulinate (MAL) has proven to be a highly effective conservative method for the treatment of actinic keratosis (AK), Bowen's disease (BD), and superficial basal cell carcinoma (sBCC). PDT is traditionally performed in association with broad-spectrum continuous-wave light sources, such as red or blue light. Recently, intense pulsed light (IPL) devices have been investigated as an alternative light source for PDT in the treatment of nonmelanoma skin cancers (NMSC)...
February 7, 2018: Biomedicines
Laura Risaliti, Vieri Piazzini, Maria Giuseppina Di Marzo, Luigi Brunetti, Roberto Cecchi, Patrizia Lencioni, Anna Rita Bilia, Maria Camilla Bergonzi
Actinic keratosis (AK) is a pre-cancerous disease, with worldwide increasing incidence, which consists in squamous cutaneous lesion caused by excessive exposure to ultraviolet radiation. An established treatment option is photodynamic therapy (PDT), based on light, oxygen and a photosensitizer. The most widely used is 5-aminolevulinic acid (ALA) which however, being a hydrophilic molecule, has difficultly penetrating the skin to achieve the desired therapeutic effect. To solve this limit, the present study provides for the development of three galenic gel formulations (Natrosol, Sepigel and Carbopol) containing 10% w/w of ALA for the treatment of AK with PDT and their comparison with a lipophilic cream used in the Hospital...
March 30, 2018: European Journal of Pharmaceutical Sciences
Ana Julia García-Malinis, Tamara Gracia-Cazaña, Yolanda GILAberte
No abstract text is available yet for this article.
February 6, 2018: European Journal of Dermatology: EJD
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