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squamous cell skin cancer

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https://www.readbyqxmd.com/read/28543620/squamous-cell-carcinoma-in-the-afro-caribbean-community-an-11-year-retrospective-study
#1
Nadège Cordel, Lucie Bonnecarrère, Benoit Tressières
BACKGROUND: Squamous cell carcinoma (SCC) is considered the most frequent skin cancer in black people. Its incidence is not known in the Afro-Caribbean population. OBJECTIVE: To assess the incidence of SCC in Guadeloupe, the largest island of the Lesser Antilles (405 000 inhabitants, mostly black people of African and European descent). The second objective was to characterize clinical and histological patterns of SCC occurring in the Afro-Caribbean community. METHODS: This retrospective study was conducted over an 11-year period (2000-2010)...
May 22, 2017: Journal of the European Academy of Dermatology and Venereology: JEADV
https://www.readbyqxmd.com/read/28543586/multiple-skin-cancers-in-patients-with-mycosis-fungoides-after-long-term-ultraviolet-phototherapy
#2
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/28539983/-clown-nose-as-first-manifestation-of-squamous-cell-carcinoma-of-the-lung
#3
Joaquim Marcoval, Laura Martínez-Molina, Montserrat Bonfill-Ortí, Francesc Valentí-Medina
BACKGROUND: Skin metastases occur in 0.7% to 9% of all patients with cancer and are usually considered a late event in the evolution of most visceral carcinomas. The development of a nodular metastatic lesion on the nasal tip is known as clown nose sign. MAIN OBSERVATION: We report a 64-year-old man that developed a nodular lesion on his nasal tip as first manifestation of squamous lung carcinoma. CONCLUSION: The biopsy of the cutaneous metastasis may be helpful to histopathologically confirm the suspected primary tumour avoiding invasive diagnostic procedures...
March 31, 2017: Journal of Dermatological Case Reports
https://www.readbyqxmd.com/read/28538028/unnecessary-cost-of-post-mohs-permanent-pathology
#4
Kelly M MacArthur, Nikki Tang, George J Hruza, Timothy S Wang, Robert G Egbers
BACKGROUND: By providing tumor-free margins, Mohs micrographic surgery (MMS) results in high cure rates in the treatment of nonmelanoma skin cancers (NMSCs). However, when closure of the post-MMS defect is coordinated with reconstructive surgery, redundant tissue is sometimes submitted for permanent section evaluation. OBJECTIVE: The purpose of our study was to investigate the frequency and effect of this practice. MATERIALS AND METHODS: Patients (12 years and older) with NMSCs cleared by MMS with coordinated closures from 2014 to 2016 were identified...
May 22, 2017: Dermatologic Surgery: Official Publication for American Society for Dermatologic Surgery [et Al.]
https://www.readbyqxmd.com/read/28526809/tumor-cell-specific-aim2-regulates-growth-and-invasion-of-cutaneous-squamous-cell-carcinoma
#5
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/28525403/genetic-diseases-associated-with-an-increased-risk-of-skin-cancer-development-in-childhood
#6
Alexander L Fogel, Kavita Y Sarin, Joyce M C Teng
PURPOSE OF REVIEW: Childhood skin cancers are relatively rare and may indicate an underlying genetic disorder. The increasing elucidation of genetic pathways is changing the diagnosis and management of genetic skin cancer susceptibility syndromes. In this review, we provide an overview of genetic conditions that predispose to skin cancer development in childhood and signs that providers should assess when evaluating affected individuals. RECENT FINDINGS: In basal cell nevus syndrome (BCNS), the patched2 (PTCH2) and suppressor of fused (SUFU) genes have been implicated in disease pathogenesis...
May 18, 2017: Current Opinion in Pediatrics
https://www.readbyqxmd.com/read/28525331/an-immunohistochemical-analysis-of-lymphocytic-infiltrations-in-canine-skin-cancers
#7
J A Madej, J P Madej, S Dzimira, M Nowak
Lymphocytic infiltrations located in the extracellular matrix often accompany canine skin cancer. They can be characterised as an inflammatory infiltration and/or a second tumour - lymphoma. The aim of this study was an immunohistochemical analysis of a lymphocytic infiltration which accompanies spontaneous skin cancer. Twenty basal cell carcinoma, 20 non-keratinizing squamous cell carcinoma, 20 keratinizing squamous cell carcinoma and 8 sebaceous gland carcinoma samples which were accompanied by a lymphocytic infiltration and/or secondary lymphatic follicles were verified histopathologically...
March 28, 2017: Polish Journal of Veterinary Sciences
https://www.readbyqxmd.com/read/28524709/pharmacokinetics-of-ingenol-mebutate-gel-under-maximum-use-conditions-in-large-treatment-areas
#8
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/28522111/incidence-and-trends-of-basal-cell-carcinoma-and-cutaneous-squamous-cell-carcinoma-a-population-based-study-in-olmsted-county-minnesota-2000-to-2010
#9
John G Muzic, Adam R Schmitt, Adam C Wright, Dema T Alniemi, Adeel S Zubair, Jeannette M Olazagasti Lourido, Ivette M Sosa Seda, Amy L Weaver, Christian L Baum
OBJECTIVE: To determine population-based incidence estimates of basal cell carcinoma (BCC) and cutaneous squamous cell carcinoma (cSCC). PATIENTS AND METHODS: We reviewed the medical records of a population-based cohort diagnosed with nonmelanoma skin cancer between January 2, 2000, and December 31, 2010. The age- and sex-adjusted incidence rates were calculated and compared with estimates from previous periods. RESULTS: The age-adjusted BCC incidence (cases per 100,000 person-years) was 360...
May 10, 2017: Mayo Clinic Proceedings
https://www.readbyqxmd.com/read/28507641/a-case-report-of-muir-torre-syndrome-in-a-woman-with-breast-cancer-and-msi-low-skin-squamous-cell-carcinoma
#10
Caroline Kientz, Marie-Odile Joly, Laurence Faivre, Alix Clemenson, Sophie Dalac, Côme Lepage, Caroline Chapusot, Caroline Jacquot, Renaud Schiappa, Marine Lebrun
BACKGROUND: The tumor spectrum in the Lynch syndrome is well defined, comprising an increased risk of developing colonic and extracolonic malignancies. Muir-Torre syndrome is a variant with a higher risk of skin disease. Patients have been described carrying mutations in the mismatch repair genes and presenting tumors with unusual histology or affected organ not part of the Lynch syndrome spectrum. Hence, the real link between Lynch syndrome, or Muir-Torre syndrome, and these tumors remains difficult to assess...
2017: Hereditary Cancer in Clinical Practice
https://www.readbyqxmd.com/read/28507493/comparison-of-the-incidence-of-skin-cancers-in-patients-on-dialysis-and-after-kidney-transplantation
#11
Joanna Sułowicz, Anna Wojas-Pelc, Ewa Ignacak, Katarzyna Krzanowska, Marek Kuźniewski, Władysław Sułowicz
INTRODUCTION: Kidney transplant (KTx) patients on immunosuppressive therapy are predisposed to the development of infections and cancers. AIM: To compare the incidence and type of malignant skin lesions in kidney transplant patients and the dialyzed population based on the initiated dermatologic screening. MATERIAL AND METHODS: The study included 598 patients: 486 kidney transplant recipients and 112 patients on maintenance dialysis. All the patients underwent dermatological examination...
April 2017: Postȩpy Dermatologii i Alergologii
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
#12
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/28501937/expression-of-pd-l1-in-keratoacanthoma-and-different-stages-of-progression-in-cutaneous-squamous-cell-carcinoma
#13
Thilo Gambichler, Martha Gnielka, Ines Rüddel, Eggert Stockfleth, Markus Stücker, Lutz Schmitz
BACKGROUND: Programmed cell death 1 (PD-1) and its ligands (PD-L1) play a major role in the immune responses of a variety of cancers. OBJECTIVES: To investigate the expression of PD-L1 in different progression forms of cutaneous squamous cell carcinoma (cSCC) and keratoacanthoma (KA). METHODS: We performed immunohistochemical staining of 21 KA, 26 actinic keratoses (AK), 20 Bowen´s diseases (BD), and 26 high-risk cSCC. The staining patterns were assessed using the tumour proportion score and staining intensity evaluation...
May 13, 2017: Cancer Immunology, Immunotherapy: CII
https://www.readbyqxmd.com/read/28500679/red-tattoos-ultraviolet-radiation%C3%A2-and-skin-cancer-in-mice
#14
Catharina M Lerche, Ida M Heerfordt, Jørgen Serup, Thomas Poulsen, Hans Christian Wulf
Ultraviolet radiation (UVR) induces skin cancer. The combination of UVR and red tattoos may be associated with increased risk of skin cancer due to potential carcinogens in tattoo inks. This combination has not been studied previously. Immunocompetent C3.Cg/TifBomTac hairless mice (n=99) were tattooed on their back with a popular red tattoo ink. This often used ink is banned for use on humans because of high content of the potential carcinogen 2-anisidine. Half of the mice were irradiated with three standard erythema doses UVR thrice weekly...
May 13, 2017: Experimental Dermatology
https://www.readbyqxmd.com/read/28494483/the-cost-of-major-head-and-neck-cancer-surgery
#15
Rahul Jayakar, Jenny Choi, Craig MacKinnon, Swee Tan
AIM: This study quantified the cost of major head and neck cancer (HNC) surgery. METHODS: Consecutive patients undergoing major HNC surgery between July 2007 and June 2012 were identified from our head and neck database. Patient demographics, tumour type, site, stage and types of resection and reconstruction, length of stay and surgical complications occurring within six months of initial surgery were retrospectively analysed. The actual cost of initial surgical treatment and hospital income were calculated...
May 12, 2017: New Zealand Medical Journal
https://www.readbyqxmd.com/read/28482338/non-melanoma-skin-cancers-of-the-fronto-temporal-area-preferentially-localize-in-the-proximity-of-arterial-blood-vessels
#16
François Kuonen, Michel Gilliet, Patrick Perrier
BACKGROUND: Squamous cell carcinomas and basal cell carcinomas are both induced by chronic UV exposure. However, their predilection for specific areas of the face remains unexplained. Regional factors such as arterial blood flow may explain specific tumor localization. OBJECTIVE: To determine whether in the fronto-temporal area of the face there is a preferential localization of non-melanoma skin cancer (NMSC) at sites of arterial blood vessels. METHODS: Twenty-two patients with NMSC of the fronto-temporal area were selected for this study...
May 9, 2017: Dermatology: International Journal for Clinical and Investigative Dermatology
https://www.readbyqxmd.com/read/28480075/concurrent-chemoradiation-with-volumetric-modulated-arc-therapy-of-patients-treated-for-anal-cancer-acute-toxicity-and-treatment-outcome
#17
Kaloyan Yordanov, Simona Cima, Antonella Richetti, Gianfranco Pesce, Francesco Martucci, Ngwa Che Azinwi, Maria Carla Valli
BACKGROUND: to report the acute toxicity and clinical results in patients with anal cancer treated with volumetric modulated arc therapy (VMAT) concomitant with chemotherapy. METHODS: A cohort of 21 patients with histologically confirmed squamous cell carcinoma of the anal canal was treated with VMAT and chemotherapy. Dose prescription was 39.6 Gy, 1.8 Gy/ fraction for the elective nodal PTV, the macroscopic (tumor and involved lymph nodes) PTV doses were 14.4 Gy up to a total dose of 54 Gy in 4 patients and 19...
April 2017: Journal of Gastrointestinal Oncology
https://www.readbyqxmd.com/read/28478931/sun-exposure-and-skin-cancer-and-the-puzzle-of-cutaneous-melanoma-a-perspective-on-fears-et-al-mathematical-models-of-age-and-ultraviolet-effects-on-the-incidence-of-skin-cancer-among-whites-in-the-united-states-american-journal-of-epidemiology-1977-105-420
#18
REVIEW
Bruce K Armstrong, Anne E Cust
Sunlight has been known as an important cause of skin cancer since around the turn of the 20th Century. A 1977 landmark paper of US scientists Fears, Scotto, and Schneiderman advanced a novel hypothesis whereby cutaneous melanoma was primarily caused by intermittent sun exposure (i.e. periodic, brief episodes of exposure to high-intensity ultraviolet radiation) while the keratinocyte cancers, squamous cell carcinoma and basal cell carcinoma, were primarily caused by progressive accumulation of sun exposure...
May 3, 2017: Cancer Epidemiology
https://www.readbyqxmd.com/read/28477020/genetic-association-between-tnf-%C3%AE-promoter-polymorphism-and-susceptibility-to-squamous-cell-carcinoma-basal-cell-carcinoma-and-melanoma-a-meta-analysis
#19
Ning Liu, Guang-Jing Liu, Juan Liu
Tumor necrosis factor-alpha (TNF-α) is a multifunctional pro-inflammatory cytokine that plays an important role in cancer development. We performed a meta-analysis to assess the relationship between single nucleotide polymorphisms in the TNF-α promoter region (rs1800629 and rs361525) and susceptibility to squamous cell carcinoma (SCC), basal cell carcinoma (BCC) and melanoma. After database retrieval, article selection, data extraction, and quality assessment, 20 articles comprising 4865 cases and 6329 controls were included in this study...
April 18, 2017: Oncotarget
https://www.readbyqxmd.com/read/28468736/prevention-of-non-melanoma-skin-cancers-with-nicotinamide-in-transplant-recipients-a-case-control-study
#20
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
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