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https://www.readbyqxmd.com/read/27908679/skin-surface-brachytherapy-a-survey-of-contemporary-practice-patterns
#1
Anna O Likhacheva, Phillip M Devlin, Shervin M Shirvani, Christopher A Barker, Phillip Beron, Ajay Bhatnagar, Stephen W Doggett, Lawrence Hochman, Charles Hsu, Michael Kasper, Martin Keisch, Subhakar Mutyala, Bradley Prestidge, Silvia Rodriguez Villalba, Vershalee Shukla, Srinath Sundararaman, Mitchell Kamrava
PURPOSE: The aim of this study was to define current patterns of care among radiation oncologists who use skin surface brachytherapy for the treatment of cutaneous squamous cell carcinoma (cSCC) and basal cell carcinoma (BCC) in academic and community settings. METHODS AND MATERIALS: A 30-question electronic survey was administered to clinician members of the American Brachytherapy Society. The respondents were asked to provide details regarding their clinical practice and their approach to skin surface brachytherapy...
November 28, 2016: Brachytherapy
https://www.readbyqxmd.com/read/27907906/senescent-fibroblast-derived-chemerin-promotes-squamous-cell-carcinoma-migration
#2
Vida Farsam, Abhijit Basu, Martina Gatzka, Nicolai Treiber, Lars A Schneider, Medhanie A Mulaw, Tanja Lucas, Stefan Kochanek, Reinhard Dummer, Mitchell P Levesque, Meinhard Wlaschek, Karin Scharffetter-Kochanek
Aging is associated with a rising incidence of cutaneous squamous cell carcinoma (cSCC), an aggressive skin cancer with the potential for local invasion and metastasis. Acquisition of a senescence-associated secretory phenotype (SASP) in dermal fibroblasts has been postulated to promote skin cancer progression in elderly individuals. The underlying molecular mechanisms are largely unexplored. We show that Chemerin, a previously unreported SASP factor released from senescent human dermal fibroblasts, promotes cSCC cell migration, a key feature driving tumor progression...
November 18, 2016: Oncotarget
https://www.readbyqxmd.com/read/27906449/differential-mutation-frequencies-in-metastatic-cutaneous-squamous-cell-carcinomas-versus-primary-tumors
#3
Ayse Selen Yilmaz, Hatice Gulcin Ozer, Jessica L Gillespie, Dawn C Allain, Madison N Bernhardt, Karina Colossi Furlan, Leticia T F Castro, Sara B Peters, Priyadharsini Nagarajan, Stephen Y Kang, O Hans Iwenofu, Thomas Olencki, Theodoros N Teknos, Amanda Ewart Toland
BACKGROUND: Exome and targeted sequencing studies have identified potential driver mutations for a variety of tumor types. Cutaneous squamous cell carcinoma (cSCC) is one of the most highly mutated cancers but typically is associated with low rates of metastasis and high survival rates. Nevertheless, metastatic cSCC is a significant health threat; up to 8800 individuals die each year of this disease. METHODS: Because it is difficult to predict which cSCCs are more likely to metastasize, and because to the best of the authors' knowledge there are no targeted therapies specifically designated for patients with metastatic cSCC, exome and/or targeted sequencing of 18 metastatic and 10 primary cSCCs was performed to identify mutations that were more frequent in metastatic tumors and might be targeted for therapeutic benefit...
December 1, 2016: Cancer
https://www.readbyqxmd.com/read/27896204/a-pedunculated-giant-cutaneous-horn-variant-overlying-invasive-squamous-cell-carcinoma-of-the-scalp
#4
Miliana Vojvodic, Kathryn Vanessa Isaac, Ronald Harold Levine, Leila Kasrai
No abstract text is available yet for this article.
November 2016: Archives of Plastic Surgery
https://www.readbyqxmd.com/read/27896185/the-relationship-between-the-size-and-the-invasion-depth-of-tumors-in-head-and-neck-cutaneous-squamous-cell-carcinoma
#5
Sam Yong Lee, Won Joo Hwang, Kyung Pil Kim, Hong Min Kim, Jae Ha Hwang, Kwang Seog Kim
BACKGROUND: Cutaneous squamous cell carcinoma (SCC), which occurs in keratinocytes of the epidermis and is the second most common skin cancer, has a more invasive growth pattern and higher potential to metastasize than basal cell carcinoma. Total excision of the primary tumor is the treatment of choice. For clear excision of the tumor, invasion depth is one of the most important factors. This study was conducted to clarify the relationship between the size and the invasion depth of cutaneous SCC...
November 2016: Archives of Plastic Surgery
https://www.readbyqxmd.com/read/27891253/cutaneous-human-papillomavirus-infection-and-development-of-subsequent-squamous-cell-carcinoma-of-the-skin
#6
Shalaka S Hampras, Rhianna A Reed, Spencer Bezalel, Michael Cameron, Basil Cherpelis, Neil Fenske, Vernon K Sondak, Jane Messina, Massimo Tommasino, Tarik Gheit, Dana E Rollison
The role of cutaneous human papillomavirus (HPV) infection in the development of subsequent cutaneous squamous cell carcinoma (SCC) is unknown. Pathologically confirmed cases of SCC (n = 150) enrolled in a previously conducted case-control study were included in a retrospective cohort study to examine the association of cutaneous HPV at the time of SCC diagnosis with the risk of subsequent SCC development. Data on HPV seropositivity, HPV DNA in eyebrow hairs (EB) and SCC tumors were available from the parent study...
2016: Journal of Skin Cancer
https://www.readbyqxmd.com/read/27890959/anti-retroviral-therapy-s-miracle-in-the-treatment-of-bowen-s-disease-in-a-human-immunodeficiency-virus-positive-patient-a-rare-case-report
#7
Kannan Gopalan, Seethalakshmi Ganga Vellaisamy, Navakumar Manickam, Razil Ahamed
Bowen's disease (BD) is a form of squamous cell carcinoma in situ often associated with human papillomavirus. Co-infection with human immunodeficiency virus (HIV) is associated with a greater risk of malignancy. We describe a case of BD in a 52-year-old unmarried HIV-positive male who presented with extensive skin lesions of 1-year duration. Histopathology was suggestive of BD. He had been tried with topical imiquimod cream and cryo-therapy for 6 months. We observed no response for these above therapies. He was started on with anti-retroviral therapy (ART) as his CD4 count was 253 cells/mm(3)...
July 2016: Indian Journal of Sexually Transmitted Diseases
https://www.readbyqxmd.com/read/27890239/interleukin-22-and-cyclosporine-in-aggressive-cutaneous-squamous-cell-carcinoma
#8
REVIEW
Alexis L Santana, Diane Felsen, John A Carucci
Cutaneous squamous cell carcinomas (SCCs) account for up to 10,000 deaths annually in the United States. Most of the more than 700,000 SCCs diagnosed are cured by excision with clear margins; however, metastasis can occur despite seemingly adequate treatment in some cases. Immune-suppressed organ transplant recipients are 60 to 100 times more likely to develop SCC than immune-competent individuals. Transplant-associated SCCs occur more frequently and behave more aggressively, showing higher risk of recurrence and metastasis...
January 2017: Dermatologic Clinics
https://www.readbyqxmd.com/read/27889291/acantholytic-squamous-cell-carcinoma-is-usually-associated-with-hair-follicles-not-acantholytic-actinic-keratosis-and-is-not-high-risk-diagnosis-management-and-clinical-outcomes-in-a-series-of-115-cases
#9
Toru Ogawa, Maija Kiuru, Thomas H Konia, Maxwell A Fung
BACKGROUND: Acantholytic squamous cell carcinoma (aSCC) is regarded as a high-risk variant of cutaneous squamous cell carcinoma (SCC). Acantholytic actinic keratosis (aAK) has been regarded as a precursor risk factor for aSCC. However, supporting evidence is limited. OBJECTIVE: We sought to document clinical features, histologic features, management, and outcomes in a series of aSCC cases. METHODS: Definitions of aSCC, aAK, and aSCC arising in association with aAK were applied to a consecutive series of aSCC cases...
November 23, 2016: Journal of the American Academy of Dermatology
https://www.readbyqxmd.com/read/27882625/review-of-high-risk-features-of-cutaneous-squamous-cell-carcinoma-and-discrepancies-between-the-american-joint-committee-on-cancer-and-nccn-clinical-practice-guidelines-in-oncology
#10
REVIEW
Samuel Lamarre Skulsky, Barry O'Sullivan, Orla McArdle, Mary Leader, Muireann Roche, Peter J Conlon, James Paul O'Neill
Cutaneous squamous cell carcinoma (SCC) is a malignancy that arises from epidermal keratinocytes. Although the majority of cutaneous SCC cases are easily treated without further complication, some behave more aggressively and carry a poor prognosis. These "high-risk" cutaneous SCCs commonly originate in the head and neck and have an increased tendency toward recurrence, local invasion, and distant metastasis. Factors for high-risk cutaneous SCC include large size (>2 cm), a deeply invasive lesion (>2 mm), incomplete excision, high-grade/desmoplastic lesions, perineural invasion (PNI), lymphovascular invasion, immunosuppression, and high-risk anatomic locations...
November 24, 2016: Head & Neck
https://www.readbyqxmd.com/read/27879972/responses-of-metastatic-basal-cell-and-cutaneous-squamous-cell-carcinomas-to-anti-pd1-monoclonal-antibody-regn2810
#11
Gerald S Falchook, Rom Leidner, Elizabeth Stankevich, Brian Piening, Carlo Bifulco, Israel Lowy, Matthew G Fury
BACKGROUND: Basal cell carcinoma (BCC) and cutaneous squamous cell carcinoma (CSCC) share exposure to UV light as the dominant risk factor, and these tumors therefore harbor high mutation burdens. In other malignancies, high mutation burden has been associated with clinical benefit from therapy with antibodies directed against the Programmed Death 1 (PD-1) immune checkpoint receptor. Highly mutated tumors are more likely to express immunogenic tumor neoantigens that attract effector T cells, which can be unleashed by blockade of the PD-1 immune checkpoint...
2016: Journal for Immunotherapy of Cancer
https://www.readbyqxmd.com/read/27879093/prognostic-value-of-the-area-and-density-of-lymphatic-vessels-in-cutaneous-squamous-cell-carcinoma
#12
Jorien Tannette Krediet, Jean Kanitakis, Adrienne Bob, Julia Schmitter, Annelot Carine Krediet, Joachim Röwert, Eggert Stockfleth, Clemens Painsi, Rainer Hügel, Dorothea Terhorst, Bernhard Lange-Asschenfeldt
BACKGROUND AND OBJECTIVES: Cutaneous squamous cell carcinoma (SCC) is known for its capacity to metastasize via lymphatic vessels. In recent studies, the level of lymphangiogenesis has been reported as a potential prognostic factor for several skin tumors. The aim of this study was to quantify lymphangiogenesis in SCC using either computer-assisted image analysis or the Chalkley count technique. Vascular parameters were evaluated and compared with respect to their predictive power for tumor metastasis...
November 2016: Journal der Deutschen Dermatologischen Gesellschaft, Journal of the German Society of Dermatology: JDDG
https://www.readbyqxmd.com/read/27876133/skin-phenotypes-can-offer-some-insight-about-the-association-between-telomere-length-and-cancer-susceptibility
#13
S Ribero, M Mangino, V Bataille
The role of telomere biology in cancer has been studied for a wide variety of different cancers but the association with telomere length has been controversial. This is because some cancers have been found to be associated with longer telomeres in circulating white cells whilst other cancer types are more common in individuals with shorter telomeres. Hence, there has been some skepticism as to whether telomere length may be helpful in estimating cancer risk. For melanoma, however, results have been fairly consistent showing that longer telomeres are associated with an increased risk...
December 2016: Medical Hypotheses
https://www.readbyqxmd.com/read/27875814/characterisation-of-prognosis-and-invasion-of-cutaneous-squamous-cell-carcinoma-by-podoplanin-and-e-cadherin-expression
#14
Kristina Hesse, Imke Satzger, Vivien Schacht, Brigitta Köther, Uwe Hillen, Joachim Klode, Katrin Schaper, Ralf Gutzmer
BACKGROUND: Around 5% of all cutaneous squamous cell carcinoma (cSCC) metastasise. Metastases usually locate in regional skin and lymph nodes, suggesting collective cancer invasion. The cellular level of tumour invasion and prognostic parameters remain to be characterised. METHODS: We performed immunohistochemical analyses of E-cadherin (marker for collective cancer invasion) and podoplanin (marker for epithelial-mesenchymal transition [EMT], single-cell invasion) expression in 102 samples of metastatic and non-metastatic cSCC and 18 corresponding skin and lymph node metastases to characterise the invasion of cSCC...
November 23, 2016: Dermatology: International Journal for Clinical and Investigative Dermatology
https://www.readbyqxmd.com/read/27875372/cutaneous-malignancies-in-hiv
#15
Aileen Y Chang, Phil Doiron, Toby Maurer
PURPOSE OF REVIEW: As patients with HIV infection are living longer with their disease, we have seen the evolution of skin cancer in this population. Cancer registries have not documented the incidence and prevalence of these cancers but we do have relevant data from cohorts. This article attempts to bring to light the extent to which skin cancer is an issue in HIV disease both domestically and internationally. RECENT FINDINGS: Squamous cell cancer is increasing in incidence in the United States and elsewhere...
January 2017: Current Opinion in HIV and AIDS
https://www.readbyqxmd.com/read/27870730/cutaneous-sebaceous-lesions-in-a-patient-with-mutyh-associated-polyposis-mimicking-muir-torre-syndrome
#16
Denisa Kacerovska, Lubomir Drlik, Lenka Slezakova, Michal Michal, Jan Stehlik, Monika Sedivcova, Ladislav Hadravsky, Dmitry V Kazakov
A 76-year-old white male with a history of adenocarcinoma of the rectosigmoideum and multiple colonic polyps removed at the age of 38 and 39 years by an abdominoperitoneal amputation and total colectomy, respectively, presented with multiple whitish and yellowish papules on the face and a verrucous lesion on the trunk. The lesions were surgically removed during the next 3 years and a total of 13 lesions were investigated histologically. The diagnoses included 11 sebaceous adenomas, 1 low-grade sebaceous carcinoma, and 1 squamous cell carcinoma...
December 2016: American Journal of Dermatopathology
https://www.readbyqxmd.com/read/27869649/randomized-trial-of-calcipotriol-combined-with-5-fluorouracil-for-skin-cancer-precursor-immunotherapy
#17
Trevor J Cunningham, Mary Tabacchi, Jean-Pierre Eliane, Sara Moradi Tuchayi, Sindhu Manivasagam, Hengameh Mirzaalian, Ahu Turkoz, Raphael Kopan, Andras Schaffer, Arturo P Saavedra, Michael Wallendorf, Lynn A Cornelius, Shadmehr Demehri
BACKGROUND: Actinic keratosis is a precursor to cutaneous squamous cell carcinoma. Long treatment durations and severe side effects have limited the efficacy of current actinic keratosis treatments. Thymic stromal lymphopoietin (TSLP) is an epithelium-derived cytokine that induces a robust antitumor immunity in barrier-defective skin. Here, we investigated the efficacy of calcipotriol, a topical TSLP inducer, in combination with 5-fluorouracil (5-FU) as an immunotherapy for actinic keratosis...
November 21, 2016: Journal of Clinical Investigation
https://www.readbyqxmd.com/read/27864629/cytokeratin-ae1-ae3-immunostaining-and-3d-histology-improvement-of-diagnosis-in-desmoplastic-squamous-cell-carcinoma-of-the-skin
#18
Katrin Schweinzer, Lukas Kofler, Jürgen Bauer, Gisela Metzler, Helmut Breuninger, Hans-Martin Häfner
Desmoplastic squamous cell carcinoma (DSCC) as a rare subtype of cutaneous SCC has specific histological features, characterized by columns, bands, and strands of squamoid cells infiltrating a dense collagenous stroma. To decrease the high rates of local recurrence in DSSC, improvement of diagnostic methods is highly demanded. Objective was to evaluate whether immunohistochemistry (IHC) is suited to increase diagnostic accuracy. A total number of 18 patients were included in this study. After recutting of the original paraffin blocks, parallel staining of serial sections with conventionally H&E and cytokeratin AE1/AE3-immunohistochemical staining was performed...
November 18, 2016: Archives of Dermatological Research
https://www.readbyqxmd.com/read/27859466/the-expression-of-podoplanin-is-associated-with-poor-outcome-in-cutaneous-squamous-cell-carcinoma
#19
Javier Cañueto, Ester Cardeñoso-Álvarez, Adriana Cosano-Quero, Ángel Santos-Briz, Emilia Fernández-López, Jesús Pérez-Losada, Concepción Román-Curto
BACKGROUND: Cutaneous squamous cell carcinoma (CSCC) is the second most frequent cancer in humans and can be both locally invasive and metastatic at distant sites. While research efforts have been made to predict poor outcome of CSCC, there is a lack of knowledge regarding molecular markers. PODOPLANIN has been associated with poor outcome in several types of cancer including CSCC, but this is controversial and only a few studies have evaluated the prognostic implications of Podoplanin in the development of this tumor...
November 10, 2016: Journal of Cutaneous Pathology
https://www.readbyqxmd.com/read/27859308/resatorvid-based-pharmacological-antagonism-of-cutaneous-tlr4-blocks-uv-induced-nf-%C3%AE%C2%BAb-and-ap-1-signaling-in-keratinocytes-and-mouse-skin
#20
Jaroslav Janda, Nichole Burkett, Karen Blohm-Mangone, Vivian Huang, Clara Curiel-Lewandrowski, David S Alberts, Emanuel F Petricoin, Valerie S Calvert, Janine Einspahr, Zigang Dong, Ann M Bode, Georg T Wondrak, Sally E Dickinson
Cutaneous exposure to solar ultraviolet (UV) radiation is a major causative factor in skin carcinogenesis, and improved molecular strategies for efficacious chemoprevention of non-melanoma skin cancer (NMSC) are urgently needed. Toll-like receptor 4 (TLR4) signaling has been shown to drive skin inflammation, photoimmunosuppression and chemical carcinogenesis. Here we have examined the feasibility of genetic and pharmacological antagonism targeting cutaneous TLR4 for the suppression of UV-induced NF-κB and AP-1 signaling in keratinocytes and mouse skin...
November 10, 2016: Photochemistry and Photobiology
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