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Actinic keratosis

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https://www.readbyqxmd.com/read/28543586/multiple-skin-cancers-in-patients-with-mycosis-fungoides-after-long-term-ultraviolet-phototherapy
#1
K Imafuku, H Hata, T Yanagi, S Kitamura, Y Inamura-Takashima, M Nishimura, S Kitamura, S Moriwaki, H Shimizu
Phototherapy is a useful noninvasive therapy, but it can induce cutaneous malignant tumours, including squamous cell carcinoma (SCC) and basal cell carcinoma (BCC). We report on a 79-year-old man who had long-standing mycosis fungoides for 40 years, which had been treated with psoralen ultraviolet A therapy for 37 years at a dose of approximately 5000 J/cm(2) . Approximately 6 years before presentation, numerous types of cutaneous malignancies, including actinic keratosis, BCC and SCC, had begun to develop all over the patient's body...
May 22, 2017: Clinical and Experimental Dermatology
https://www.readbyqxmd.com/read/28543532/intraepidermal-merkel-cell-carcinoma-a-case-series-of-a-rare-entity-with-clinical-follow-up
#2
George Jour, Phyu P Aung, Eduardo Rozas-Muñoz, Johnathan L Curry, Victor Prieto, Doina Ivan
BACKGROUND: Merkel cell carcinoma (MCC) is a rare but aggressive cutaneous carcinoma. MCC involves typically dermis and although epidermotropism has been reported, MCC strictly intraepidermal or in situ (MCCIS) is exceedingly rare. Most of the cases of MCCIS described so far have associated other lesions, such as squamous or basal cell carcinoma, actinic keratosis, etc. Herein, we describe three patients with MCC strictly in situ, without a dermal component. METHODS: Our patients were elderly, two of the lesions involved the head and neck area and one was on a finger...
May 23, 2017: Journal of Cutaneous Pathology
https://www.readbyqxmd.com/read/28538027/dermatoscopic-patterns-of-nonfacial-actinic-keratosis-characterization-of-pigmented-and-nonpigmented-lesions
#3
Clarissa P H Reinehr, Gabriela C Garbin, Renato M Bakos
BACKGROUND: Actinic keratoses (AKs) are dysplastic proliferations of keratinocytes. Studies evaluating nonfacial dermatoscopic pattern of AKs are scarce. OBJECTIVE: This study aimed to evaluate the dermatoscopic patterns of AKs located in nonfacial sites and to compare their patterns with facial lesions. MATERIALS AND METHODS: Patients with concomitant facial and nonfacial AKs were recruited to participate and evaluated by clinical and dermatoscopic images of their AKs...
May 22, 2017: Dermatologic Surgery: Official Publication for American Society for Dermatologic Surgery [et Al.]
https://www.readbyqxmd.com/read/28536731/a-novel-actinic-keratosis-field-assessment-scale-for-grading-actinic-keratosis-disease-severity
#4
Brigitte Dréno, Rino Cerio, Thomas Dirschka, Ignasi Figueras Nart, John T Lear, Ketty Peris, Andrés Ruiz de Casas, Kaleci Shaniko, Giovanni Pellacani
Actinic keratosis (AK) lesions are surrounded by field cancerization (areas of subclinical, non-visible sun damage). Existing AK grading tools rely on AK counts, which are not reproducible. An Actinic Keratosis Field Assessment Scale (AK-FAS) for grading the severity of AK/field was developed. Standardized photographs of patients representing the full range of AK severity were collected. Six investigators independently rated each photograph according to 3 criteria: AK area (total skin area affected by AK lesions), hyperkeratosis and sun damage...
May 24, 2017: Acta Dermato-venereologica
https://www.readbyqxmd.com/read/28532759/5-fluorouracil-for-actinic-keratosis-treatment-and-chemoprevention-a-randomized-controlled-trial
#5
Joanna L Walker, Julia A Siegel, Moniyka Sachar, Hyemin Pomerantz, Suephy C Chen, Susan M Swetter, Robert P Dellavalle, George P Stricklin, Abrar A Qureshi, John J DiGiovanna, Martin A Weinstock
No abstract text is available yet for this article.
June 2017: Journal of Investigative Dermatology
https://www.readbyqxmd.com/read/28526809/tumor-cell-specific-aim2-regulates-growth-and-invasion-of-cutaneous-squamous-cell-carcinoma
#6
Mehdi Farshchian, Liisa Nissinen, Elina Siljamäki, Pilvi Riihilä, Minna Piipponen, Atte Kivisaari, Markku Kallajoki, Reidar Grénman, Juha Peltonen, Sirkku Peltonen, Koen D Quint, Jan Nico Bouwes Bavinck, Veli-Matti Kähäri
Cutaneous squamous cell carcinoma (cSCC) is the most common metastatic skin cancer. Inflammation is a typical feature in cSCC progression. Analysis of the expression of inflammasome components in cSCC cell lines and normal human epidermal keratinocytes revealed upregulation of the expression of AIM2 mRNA and protein in cSCC cells. Elevated levels of AIM2 mRNA were noted in cSCCs in vivo compared with normal skin. Strong and moderate tumor cell specific expression of AIM2 was detected with immunohistochemistry (IHC) in sporadic human cSCCs in vivo, whereas expression of AIM2 was moderate in cSCC in situ (cSCCIS) and low or absent in actinic keratosis (AK) and normal skin...
May 2, 2017: Oncotarget
https://www.readbyqxmd.com/read/28524709/pharmacokinetics-of-ingenol-mebutate-gel-under-maximum-use-conditions-in-large-treatment-areas
#7
Alicia D Bucko, Michael Jarratt, Dowling B Stough, Laerke Kyhl, John Villumsen, Anders Hall
PURPOSE: Actinic keratoses (AKs) exist on a continuum with squamous cell carcinoma and can occur as sub-clinical and clinically visible lesions in cancerized fields on sun-damaged skin. Ingenol mebutate effectively treats AKs on areas up to 25 cm(2), but actinic keratosis can affect larger areas of skin. This trial evaluated systemic exposure and safety of ingenol mebutate gel on larger areas of skin under maximum use conditions. METHODS: Phase I, multicenter, open-label, uncontrolled, non-randomized trial...
May 19, 2017: Journal of Dermatological Treatment
https://www.readbyqxmd.com/read/28510496/comparison-of-the-treatment-guidelines-for-actinic-keratosis-a-critical-appraisal-and-review
#8
Patrick Fleming, Stephanie Zhou, Robert Bobotsis, Charles Lynde
There are currently several reputable guidelines on the treatment of actinic keratosis (AK) from groups in Canada, the United Kingdom, and Europe. These recommendations, based on evidence or expert consensus, offer clinicians a variety of treatment options for the different clinical presentations of AKs. Although the guidelines are similar in some regards, variations exist in treatment options, duration, and strength of recommendation. Some guidelines also lack input on specific therapies and certain types of AK, such as hypertrophic or thin presentations...
May 1, 2017: Journal of Cutaneous Medicine and Surgery
https://www.readbyqxmd.com/read/28504403/long-methylaminolaevulinate-application-does-not-increase-clinical-efficacy-of-photodynamic-therapy-in-actinic-keratosis-but-leads-to-collateral-damage
#9
L R Braathen
No abstract text is available yet for this article.
May 2017: British Journal of Dermatology
https://www.readbyqxmd.com/read/28502083/in-vivo-microvascular-imaging-of-cutaneous-actinic-keratosis-bowen-s-disease-and-squamous-cell-carcinoma-using-dynamic-optical-coherence-tomography
#10
L Themstrup, G Pellacani, J Welzel, J Holmes, G B E Jemec, M Ulrich
BACKGROUND: A clear distinction between actinic keratosis (AK), Bowen's disease (BD) and squamous cell carcinoma (SCC) cannot reliably be made by clinical and dermoscopic evaluation alone. Dynamic optical coherence tomography (D-OCT) is a novel angiographic variant of OCT that allows for non-invasive, in vivo evaluation of the cutaneous microvascular morphology. OBJECTIVE: To investigate the microvascular structures of AK, BD and invasive SCC using D-OCT in order to gain insights into the microvascular morphology of lesions in the spectrum of keratinocyte skin cancers...
May 14, 2017: Journal of the European Academy of Dermatology and Venereology: JEADV
https://www.readbyqxmd.com/read/28489298/a-randomized-double-blind-placebo-controlled-clinical-trial-evaluating-the-role-of-systemic-antihistamine-therapy-for-the-reduction-of-adverse-effects-associated-with-topical-5-aminolevulinic-acid-photodynamic-therapy
#11
Monique J Vanaman Wilson, Isabela T Jones, Douglas C Wu, Mitchel P Goldman
BACKGROUND AND OBJECTIVE: Following photodynamic therapy with 5-aminolevulinic acid (ALA-PDT), patients experience inflammation that may be partially attributable to H1 histamine receptor activation. The objective of this study was to evaluate the impact of antihistamines upon adverse effects following ALA-PDT. STUDY DESIGN/MATERIALS AND METHODS: This was a randomized, placebo-controlled clinical trial conducted at a single study site. Twenty subjects with facial actinic keratoses were randomized to ALA-PDT plus cetirizine 10 mg (n = 10) versus placebo daily (n = 10) from 3 days pre-treatment to 3 days post-treatment for a total of 7 days...
May 10, 2017: Lasers in Surgery and Medicine
https://www.readbyqxmd.com/read/28468736/prevention-of-non-melanoma-skin-cancers-with-nicotinamide-in-transplant-recipients-a-case-control-study
#12
Francesco Drago, Giulia Ciccarese, Ludovica Cogorno, Camillo Calvi, Luigina A Marsano, Aurora Parodi
Nicotinamide is the precursor of nicotinamide adenine dinucleotide (NAD+), an essential cofactor for adenosine triphosphate (ATP) production. It has recently been reported to be effective in reducing the rates of new non-melanoma skin cancers (NMSCs) and actinic keratosis (AKs). We studied the efficacy of oral nicotinamide as treatment for AKs in transplant recipients. We recruited 38 transplant (eight liver and 30 kidney) patients with single or multiple AKs. Nineteen patients were randomly assigned to Group 1 and took nicotinamide 500 mg/daily (cases); the other 19 patients were randomly assigned to Group 2 without nicotinamide (controls)...
May 3, 2017: European Journal of Dermatology: EJD
https://www.readbyqxmd.com/read/28465868/red-dot-basal-cell-carcinoma-report-of-cases-and-review-of-this-unique-presentation-of-basal-cell-carcinoma
#13
Philip R Cohen
Red dot basal cell carcinoma is a unique variant of basal cell carcinoma. Including the three patients described in this report, red dot basal cell carcinoma has only been described in seven individuals. This paper describes the features of two males and one female with red dot basal cell carcinoma and reviews the characteristics of other patients with this clinical subtype of basal cell carcinoma. A 70-year-old male developed a pearly-colored papule with a red dot in the center on his nasal tip. A 71-year-old male developed a red dot surrounded by a flesh-colored papule on his left nostril...
March 22, 2017: Curēus
https://www.readbyqxmd.com/read/28449867/cost-effectiveness-of-ingenol-mebutate-gel-for-the-treatment-of-actinic-keratosis-in-greece
#14
Kostas Athanasakis, Nadia Boubouchairopoulou, Filippos Tarantilis, Vasiliki Tsiantou, Stathis Kontodimas, John Kyriopoulos
PURPOSE: The present study aimed to perform a cost-effectiveness analysis of ingenol mebutate (IM) versus other topical alternatives for the treatment of actinic keratosis (AK). METHODS: The analysis used a decision tree to calculate the clinical effects and costs of AK first-line treatments, IM (2-3 days), diclofenac 3% (for 8 or 12 weeks), imiquimod 5% (for 4 or 8 weeks), during a 24-month horizon, using discrete intervals of 6 months. A hypothetical cohort of immunocompetent adult patients with clinically confirmed AK on the face and scalp or trunk and extremities was considered...
April 24, 2017: Clinical Therapeutics
https://www.readbyqxmd.com/read/28448101/actinic-keratosis-a-chronic-progressive-disease-understanding-clinical-gaps-to-optimise-patient-management
#15
Rino Cerio, Thomas Dirschka, Brigitte Dréno, Ignasi Figueras Nart, John T Lear, Giovanni Pellacani, Ketty Peris, Andrés Ruiz de Casas
No abstract text is available yet for this article.
April 27, 2017: Acta Dermato-venereologica
https://www.readbyqxmd.com/read/28444443/-new-approaches-for-the-prevention-of-actinic-keratosis
#16
REVIEW
H Stege, J Krutmann
Actinic keratosis is one of the most common skin diseases. Because of the ongoing demographic changes, it is anticipated that the incidence will further increase. Prevention of actinic keratoses is thus of great importance. By far the most important cause of actinic keratoses is the chronic cumulative irradiation of human skin with ultraviolet B and A radiation from natural sunlight. There is no doubt that use of sunscreens is effective in preventing actinic keratoses. Recent studies indicate that in high-risk groups the regular use of medical devices which are characterized by a very high SPF and which contain liposomally encapsulated DNA repair enzymes are effective in preventing the development of new actinic keratoses even when field cancerization is already present in human skin...
May 2017: Der Hautarzt; Zeitschrift Für Dermatologie, Venerologie, und Verwandte Gebiete
https://www.readbyqxmd.com/read/28427916/-actinic-keratosis-new-concept-and-therapeutic-update
#17
Rafael Carmena-Ramón, Almudena Mateu-Puchades, Sergio Santos-Alarcón, Sofía Lucas-Truyols
Actinic keratosis (AK) is a common reason for consultation in both Primary Care and Specialised Care. It is the third or fourth most common reason for consultation in dermatology, accounting for up to 5-6% of patients attended. It has also been observed that its prevalence has been increasing in the last 10years, compared to other dermatoses. This is also expected to continue to increase due to longer life expectancy, and by the changes in sun exposure habits since the middle of the last century. The aim of this article is to update the concepts of AK, cancerisation field and to present the currently available therapeutic tools...
April 17, 2017: Atencion Primaria
https://www.readbyqxmd.com/read/28421455/erratum-to-efficacy-and-safety-of-5-fluorouracil-0-5-salicylic-acid-10-in-the-field-directed-treatment-of-actinic-keratosis-a-phase-iii-randomized-double-blind-vehicle-controlled-trial
#18
Eggert Stockfleth, Ralph von Kiedrowski, Rolf Dominicus, John Ryan, Adam Ellery, Meritxell Falqués, Nathalie Ivanoff, Rosario Rodriguez Azeredo
No abstract text is available yet for this article.
April 18, 2017: Dermatology and Therapy
https://www.readbyqxmd.com/read/28409583/long-term-follow-up-assessment-of-daylight-photodynamic-therapy-with-methyl-aminolevulinate-in-patients-with-actinic-keratosis
#19
Dario Fai, Carlotta Fai, Nicoletta Cassano, Gino A Vena
No abstract text is available yet for this article.
June 2017: Giornale Italiano di Dermatologia e Venereologia: Organo Ufficiale, Società Italiana di Dermatologia e Sifilografia
https://www.readbyqxmd.com/read/28408848/ingenol-mebutate-in-low-amounts-for-the-treatment-of-actinic-keratosis-in-korean-patients
#20
Hyun Jae Joe, Byung Ho Oh
BACKGROUND: Ingenol mebutate (IM), a novel agent for field therapy of actinic keratosis (AK), has a drawback of inducing local skin reactions (LSRs), which may cause discomfort in patients. To reduce the LSRs, we tried the application of IM in low amounts. OBJECTIVE: The purpose of this study was to review Korean patients with AK being treated with IM and evaluate the LSRs and therapeutic outcomes of low amounts of IM. METHODS: We retrospectively reviewed 47 patients with AK on the face...
2017: Clinical, Cosmetic and Investigational Dermatology
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