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basal cell skin cancer

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https://www.readbyqxmd.com/read/29790600/characterizing-the-tissue-dielectric-constant-of-skin-basal-cell-cancer-lesions
#1
H N Mayrovitz, S R Gildenberg, P Spagna, L Killpack, D A Altman
BACKGROUND: Measuring tissue dielectric constant (TDC) of cancer tissues to distinguish them from normal or non-cancerous tissues has been an active area of research that has targeted several different cancer types usually using in vitro specimens. The goal of this study was to determine if and to what extent TDC values measured in vivo at 300 MHz using a simple hand-held measuring device might differentiate between skin cancer lesions and non-cancerous skin. MATERIALS AND METHODS: Triplicate TDC measurements were made in 32 patients who were subsequently diagnosed with skin basal cell carcinoma (BCC) and in 14 patients subsequently diagnosed as having non-cancerous lesions...
May 23, 2018: Skin Research and Technology
https://www.readbyqxmd.com/read/29789760/high-dose-rate-brachytherapy-in-treatment-of-non-melanoma-skin-cancer-of-head-and-neck-region-preliminary-results-of-a-prospective-single-institution-study
#2
Bita Kalaghchi, Ebrahim Esmati, Reza Ghalehtaki, Marzieh Gomar, Ramin Jaberi, Soraya Gholami, Somayyeh Babaloui, Mansoureh Nabavi, Sarvazad Sotoudeh, Nezhat Khanjani, Ali Kazemian, Farnaz Amouzegar-Hashemi, Mahdi Aghili, Marzieh Lashkari
Purpose: Skin cancers are the most common human malignancy with increasing incidence. Currently, surgery is standard of care treatment for non-melanoma skin cancers. However, brachytherapy is a growing modality in the management of skin cancers. Therefore, we aimed to assess the outcome of patients with non-melanoma skin cancers treated by high-dose-rate (HDR) brachytherapy with surface mold technique. Material and methods: In this prospective study, we recruited patients with basal cell carcinoma (BCC) and squamous cell carcinoma (SCC) of the skin who were candidates for definitive or adjuvant brachytherapy during 2013-2014...
April 2018: Journal of Contemporary Brachytherapy
https://www.readbyqxmd.com/read/29780659/confocal-microscopy-in-skin-cancer
#3
REVIEW
Verena Ahlgrimm-Siess, Martin Laimer, Harold S Rabinovitz, Margaret Oliviero, Rainer Hofmann-Wellenhof, Ashfaq A Marghoob, Alon Scope
Purpose of Review: Reflectance confocal microscopy (RCM) enables imaging of skin lesions at cellular level resolution at the bedside (in vivo) or in freshly excised tissue (ex vivo). This article provides an overview of strengths and limitations of non-invasive RCM in skin cancer diagnosis. Recent Findings: RCM features of common melanocytic and non-melanocytic skin neoplasms such as melanoma, actinic keratosis/squamous cell carcinoma, basal cell carcinoma, and nevi have been well defined and show good correlation with dermoscopic and histopathologic findings...
2018: Current Dermatology Reports
https://www.readbyqxmd.com/read/29776351/a-computational-study-of-hedgehog-signalling-involved-in-basal-cell-carcinoma-reveals-the-potential-and-limitation-of-combination-therapy
#4
Antoine Buetti-Dinh, Rebecca Jensen, Ran Friedman
BACKGROUND: The smoothened (SMO) receptor is an essential component of the Sonic hedgehog (SHH) signalling, which is associated with the development of skin basal cell carcinoma (BCC). SMO inhibitors are indicated for BCC patients when surgical treatment or radiation therapy are not possible. Unfortunately, SMO inhibitors are not always well tolerated due to severe side effects, and their therapeutical success is limited by resistance mutations. METHODS: We investigated how common are resistance-causing mutations in two genomic databases which are not linked to BCC or other cancers, namely 1000 Genomes and ExAC...
May 18, 2018: BMC Cancer
https://www.readbyqxmd.com/read/29766626/co-2-laser-and-photodynamic-therapy-study-of-efficacy-in-periocular-bcc
#5
Santo Raffaele Mercuri, Pina Brianti, Annunziata Dattola, Luigi Bennardo, Martina Silvestri, Giusy Schipani, Steven Paul Nisticò
Basal cell carcinoma (BCC), the most common type of skin cancer in the world, usually arises in sun-exposed areas of the skin. The therapeutic approach to periocular BCC has changed in the last few years. Currently the treatment, considering the delicate localization of the disease, must not only ensure complete recovery from the neoplastic disease, but must also satisfy functional and aesthetic criteria. In this study we tried to evaluate the efficacy of CO2 laser and photodynamic therapy in periocular BCC...
May 15, 2018: Dermatologic Therapy
https://www.readbyqxmd.com/read/29765947/leser-tr%C3%A3-lat-syndrome-in-a-male-with-breast-carcinoma-and-eyelid-basal-cell-carcinoma
#6
Rajiv Garg, Siddharth Madan, Pragya Prakash, Ram Chander, Monisha Choudhary
Purpose: Leser-Trélat syndrome consists of appearance of a solid tumor-like carcinoma breast, colon, or stomach following eruption of multiple seborrheic keratoses (SK) of the skin. We present an unusual and possibly the first case report of Leser-Trélat syndrome in a male patient with a history of mastectomy for breast carcinoma who presented to us with a second malignancy in the form of basal cell carcinoma (BCC) of the lower eyelid. Procedure: A 75-year-old male presented in 2014 with a history of modified radical mastectomy for infiltrating ductal carcinoma of the left breast which was performed 11 years prior to the day of presentation...
April 2018: Ocular Oncology and Pathology
https://www.readbyqxmd.com/read/29756221/rapid-growth-rate-is-associated-with-poor-prognosis-in-cutaneous-squamous-cell-carcinoma
#7
J Cañueto, J Martín-Vallejo, E Cardeñoso-Álvarez, E Fernández-López, J Pérez-Losada, C Román-Curto
BACKGROUND: Cutaneous squamous cell carcinoma (cSCC) represents the most common form of skin cancer after basal cell carcinoma, and can be both locally invasive and metastatic to distant sites. Growth rate (GR) has been poorly evaluated in cSCC, despite clinical evidence suggesting that GR is an important risk factor in cSCC. AIM: To analyse the influence of GR in cSCC prognosis. METHODS: We retrospectively evaluated GR in a series of 90 cSCCs and tried to correlate GR with prognosis in cSCC...
May 13, 2018: Clinical and Experimental Dermatology
https://www.readbyqxmd.com/read/29752876/quantifying-direct-dna-damage-in-the-basal-layer-of-skin-exposed-to-uv-radiation-from-sunbeds
#8
Isla Rose Mary Barnard, Patrick Tierney, Catherine Louise Campbell, Lewis McMillan, Harry Moseley, Ewan Eadie, Christian Tom Alcuin Brown, Kenneth Wood
Non-melanoma and melanoma skin cancers are attributable to DNA damage caused by ultraviolet (UV) radiation exposure. One DNA photoproduct, the Cyclobutane Pyrimidine Dimer (CPD), is believed to lead to DNA mutations caused by UV radiation. Using radiative transfer simulations, we compare the number of CPDs directly induced by UV irradiation from artificial and natural UV sources (a standard sunbed and the midday summer Mediterranean sun) for skin types I and II on the Fitzpatrick scale. We use Monte Carlo Radiative Transfer (MCRT) modelling to track the progression of UV photons through a multi-layered three dimensional (3D) grid that simulates the upper layers of the skin...
May 12, 2018: Photochemistry and Photobiology
https://www.readbyqxmd.com/read/29752800/raman-biophysical-markers-in-skin-cancer-diagnosis
#9
Xu Feng, Austin J Moy, Hieu T M Nguyen, Yao Zhang, Jason Zhang, Matthew C Fox, Katherine R Sebastian, Jason S Reichenberg, Mia K Markey, James W Tunnell
Raman spectroscopy (RS) has demonstrated great potential for in vivo cancer screening; however, the biophysical changes that occur for specific diagnoses remain unclear. We recently developed an inverse biophysical skin cancer model to address this issue. Here, we presented the first demonstration of in vivo melanoma and nonmelanoma skin cancer (NMSC) detection based on this model. We fit the model to our previous clinical dataset and extracted the concentration of eight Raman active components in 100 lesions in 65 patients diagnosed with malignant melanoma (MM), dysplastic nevi (DN), basal cell carcinoma, squamous cell carcinoma, and actinic keratosis...
May 2018: Journal of Biomedical Optics
https://www.readbyqxmd.com/read/29752702/daylight-photodynamic-therapy-for-actinic-keratoses
#10
REVIEW
Colin A Morton, Lasse R Braathen
Topical photodynamic therapy (PDT) using daylight is effective in the treatment of actinic keratoses (AKs), offering the potential for treatment of large fields such as full face and balding scalp, but with minimal therapy-associated pain. Comparison with conventional PDT indicates similar efficacy for thin and moderate-thickness AKs, but with significantly less discomfort/pain, driving a patient preference for daylight-mediated PDT (DL-PDT) compared with conventional PDT using high-intensity office/hospital-based light sources...
May 11, 2018: American Journal of Clinical Dermatology
https://www.readbyqxmd.com/read/29746428/review-of-nonmelanoma-skin-cancer-in-african-americans-hispanics-and-asians
#11
Shauna Higgins, Azadeh Nazemi, Maggie Chow, Ashley Wysong
BACKGROUND: Skin cancer has traditionally been studied in Caucasian skin. Although it does occur with increased relative frequency in Caucasians, patients with skin of color suffer from elevated morbidity and mortality when diagnosed with skin cancer. OBJECTIVE: To detail the unique demographic and clinical features of nonmelanoma skin cancer (NMSC) in patients with skin of color, including Hispanic, African American, and Asian patients. MATERIALS AND METHODS: A complete PubMed search was conducted spanning dates from 1947 to June 2017 yielding a total of 185 manuscripts, from which 45 were included in this review...
May 9, 2018: Dermatologic Surgery: Official Publication for American Society for Dermatologic Surgery [et Al.]
https://www.readbyqxmd.com/read/29746427/risk-factors-for-basal-cell-carcinoma-in-men-younger-than-40-years-a-case-control-study
#12
Kathleen M Nemer, Tyler M Bauman, Alan S Boyd
BACKGROUND: Basal cell carcinoma (BCC) is the most common malignancy in the United States and is more prevalent in older populations. OBJECTIVE: The aim of this study was to investigate BCC risk factors in male patients younger than 40 years. MATERIALS AND METHODS: A consecutive series of male patients with pathology-proven BCC and younger than 40 years at time of diagnosis were retrospectively identified along with matched controls. Phone interviews were conducted using a structured questionnaire, and differences between patients with and without BCC were investigated...
May 9, 2018: Dermatologic Surgery: Official Publication for American Society for Dermatologic Surgery [et Al.]
https://www.readbyqxmd.com/read/29743371/roles-of-fc-domain-and-exudation-in-l2-antibody-mediated-protection-against-human-papillomavirus
#13
Joshua W Wang, Wai Hong Wu, Tsui-Chin Huang, Margaret Wong, Kihyuck Kwak, Keiko Ozato, Chien-Fu Hung, Richard B S Roden
To address how L2-specific antibodies prevent human papillomavirus (HPV) infection of the genital tract we generated neutralizing monoclonal antibodies (MAbs) WW1, a rat IgG2a that binds L2 residues 17-36 (like mouse MAb RG1), and JWW3, a mouse IgG1 derivative of Mab24 specific to L2 residues 58-64. By Western blot, WW1 recognized L2 of 29/34 HPV genotypes tested, compared to only 13/34 for RG1, and 25/34 for JWW3. WW1 IgG and (Fab')2 bound HPV16 pseudovirions similarly, however whole IgG provided better protection against HPV vaginal challenge...
May 9, 2018: Journal of Virology
https://www.readbyqxmd.com/read/29730334/fractional-sunburn-threshold-uvr-doses-generate-equivalent-vitamin-d-and-dna-damage-in-skin-types-i-vi-but-with-epidermal-dna-damage-gradient-correlated-to-skin-darkness
#14
Barbara B Shih, Mark D Farrar, Marcus S Cooke, Joanne Osman, Abigail K Langton, Richard Kift, Ann R Webb, Jacqueline L Berry, Rachel E B Watson, Andy Vail, Frank R de Gruijl, Lesley E Rhodes
Public health guidance recommends limiting sun-exposure to sub-sunburn levels, but it's unknown whether these can gain vitamin D (for musculoskeletal health) whilst avoiding epidermal DNA damage (initiates skin cancer). Well-characterised healthy humans of all skin types (I-VI; lightest to darkest skin) were exposed to a low dose-series of solar simulated UVR of 20-80% their individual sunburn threshold dose (minimal erythemal dose, MED). Significant UVR dose-responses were seen for serum 25(OH)D and whole epidermal CPD, with as little as 0...
May 3, 2018: Journal of Investigative Dermatology
https://www.readbyqxmd.com/read/29729096/evaluation-of-the-appropriate-surgical-margin-for-pigmented-basal-cell-carcinoma-according-to-the-risk-factors-for-recurrence-a-single-institute-retrospective-study-in-japan
#15
Y Nakamura, K Tanese, I Hirai, K Kameyama, Y Kawakami, M Amagai, T Funakoshi
Basal cell carcinoma (BCC) is the most common skin cancer and tends to appear on the face and neck.1 For the complete removal of BCC, a surgical margin of at least 4mm is recommended by the guidelines of various dermatological and oncologic associations.2-4 However, 4mm is not always feasible because of anatomic and cosmetic restrictions. Moreover, these recommendations are based on studies of Caucasian non-pigmented BCCs. In contrast, most Asian BCCs are pigmented and relatively demarcated. This article is protected by copyright...
May 5, 2018: Journal of the European Academy of Dermatology and Venereology: JEADV
https://www.readbyqxmd.com/read/29727201/appropriate-use-criteria-for-basal-cell-carcinoma-mohs-surgery-at-a-single-center-in-the-face-of-high-burden-skin-cancer-a-retrospective-cohort-study
#16
Bruno de Carvalho Fantini, Roberto Bueno Filho, Fernando Chahud, Cacilda da Silva Souza
BACKGROUND: Mohs micrographic surgery (MMS) promotes high cure rates, but accessibility to MMS is limited in distinctive realities and countries. OBJECTIVE: We sought to verify applicable criteria for MMS indication and prioritization regarding basal cell carcinoma (BCC) in the face of various limitations. METHODS: We analyzed MMS-excised BBC, without patient exclusion, through a retrospective cohort study at a single university center. RESULTS: MMS was performed in 101 BCCs, average size = 5...
May 4, 2018: Journal of Dermatological Treatment
https://www.readbyqxmd.com/read/29705894/quality-of-life-in-patients-with-non-melanoma-skin-cancer-implications-for-healthcare-education-services-and-supports
#17
Robabeh Abedini, Maryam Nasimi, Pedram Noormohammad Pour, Atie Moghtadaie, Hamid Reza Tohidinik
Non-melanoma skin cancer (NMSC) is the most prevalent type of cancer among Caucasian populations worldwide. The purpose of this work was to measure quality of life (QOL) of the patients with diagnosis of basal cell carcinoma (BCC) and squamous cell carcinoma (SCC) who were referred to our cancer clinic. During 1 year, 95 patients were selected and asked to complete Dermatology Life Quality Index (DLQI) questionnaires. Ninety-five patients with NMSC (74 men and 21 women) with mean age of 64.6 ± 12.5 participated in this cross-sectional study...
April 28, 2018: Journal of Cancer Education: the Official Journal of the American Association for Cancer Education
https://www.readbyqxmd.com/read/29697382/basal-cell-carcinoma-of-the-foot-two-case-reports-and-literature-review
#18
U Wollina, J Schönlebe, D Langner
Basal cell carcinoma (BCC) is considered the most common skin cancer in men. BCC of the foot, however, is very rare, and may occur on dorsal surface of the foot, foot sole or nail apparatus. Diagnosis is often delayed due to the location at an unusual site. We report on two patients: a 61-year-old female with an ulcerated BCC of the sole and dorsum of the foot on a leg with Klippel-Trénaunay syndrome and a 61-year-old male with an ulcerated BCC of the foot sole. Histologic tumor types were either metatypic or mixed solid and morphea-like with partial glandular infiltration...
March 2018: Georgian Medical News
https://www.readbyqxmd.com/read/29696353/-early-detection-of-occupational-skin-diseases-in-sewer-workers
#19
V Lang, F Lauffer, Y Fincan, T Biedermann, A Zink
BACKGROUND: Skin diseases affect 30-70% of the world population, and globally, skin cancer rates are continuously increasing. In this respect, prevention programs and early detection of skin diseases are of particular importance. OBJECTIVES: To screen sewer workers for skin diseases with regard to their work-related risk. METHODS: Employees of the municipal utilities in Munich (Münchner Stadtentwässerung) underwent a whole-body examination of the skin, conducted by two dermatologists...
April 25, 2018: Der Hautarzt; Zeitschrift Für Dermatologie, Venerologie, und Verwandte Gebiete
https://www.readbyqxmd.com/read/29695213/the-economic-burden-of-occupational-non-melanoma-skin-cancer-due-to-solar-radiation
#20
Amirabbas Mofidi, Emile Tompa, James Spencer, Christina Kalcevich, Cheryl E Peters, Joanne Kim, Chaojie Song, Seyed Bagher Mortazavi, Paul A Demers
Solar ultraviolet (UV) radiation is the second most prevalent carcinogenic exposure in Canada and is similarly important in other countries with large Caucasian populations. The objective of this article was to estimate the economic burden associated with newly diagnosed non-melanoma skin cancers (NMSCs) attributable to occupational solar radiation exposure. Key cost categories considered were direct costs (healthcare costs, out-of-pocket costs (OOPCs), and informal caregiver costs); indirect costs (productivity/output costs and home production costs); and intangible costs (monetary value of the loss of health-related quality of life (HRQoL))...
April 25, 2018: Journal of Occupational and Environmental Hygiene
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