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https://www.readbyqxmd.com/read/28735614/smokers-versus-smoking-is%C3%A2-there%C3%A2-detection-bias-for-keratinocyte-carcinomas
#1
Marlies Wakkee
Dusingize et al. used a prospective observational cohort study to demonstrate a decreased risk of basal cell carcinoma and an increased risk of squamous cell carcinoma among smokers. This association disappeared after stratifying for skin screening visits, demonstrating the important role of detection bias. In the absence of randomized clinical trials, well-designed and critically analyzed observational studies can provide similarly valuable evidence.
August 2017: Journal of Investigative Dermatology
https://www.readbyqxmd.com/read/28735439/surgical-management-of-periocular-cancers-high-and-low-risk-features-drive-treatment
#2
REVIEW
Richard C Allen
PURPOSE OF REVIEW: Recent advances in the treatment of eyelid tumors have centered on the excision, evaluation of margins, role of sentinel lymph node biopsy, and adjunctive/adjuvant systemic and radiation therapy. The purpose of this review is to elaborate on these advances. RECENT FINDINGS: Mohs excision of basal cell carcinoma and squamous cell carcinoma continues to provide the greatest success in complete excision of the cancer, especially in those cases of high-risk disease including medial canthal location and recurrent disease...
September 2017: Current Oncology Reports
https://www.readbyqxmd.com/read/28730234/associated-lesions-of-peri-implant-mucosa-in-immediate-versus-delayed-loading-of-dental-implants
#3
Alexandru Andrei Iliescu, Sabina Andrada Zurac, Vasile Nicolae, Mihaela Georgiana Iliescu, Paula Perlea
Currently, immediate loading of dental implants is very attractive as a standard protocol for prosthetic restorations in edentulous patients. The aim of this study is to find out the intimate peri-implant mucosa response depending on timing of implant loading, immediate or delayed. Fifty-one screw implants Alpha Bio (Alpha-Bio Tec, Israel) were inserted in 42 partially edentulous patients according to standardized surgical techniques. At six months of loading, samples of peri-implant mucosa were harvested from 27 immediate loaded, respectively 24 delayed loaded implants, and subjected to microscopic examination...
2017: Romanian Journal of Morphology and Embryology, Revue Roumaine de Morphologie et Embryologie
https://www.readbyqxmd.com/read/28726192/study-of-proliferative-activity-of-vaginal-epithelium-in-women-with-stress-urinary-incontinence-treated-by-er-yag-laser
#4
G A Lapii, A Yu Yakovleva, A I Neimark, E L Lushnikova
The expression of Ki-67 proliferation marker was studied in vaginal biopsy specimens from women with stress urinary incontinence treated using a Fotona nonablative erbium laser. Cells expressing Ki-67 were located in all cases in the parabasal and basal levels of stratified squamous epithelium, the index of labeled nuclei before Er:YAG laser exposure was 19.05±2.86%. After 1-2 months of laser therapy, the index of labeled nuclei in the epithelium increased significantly and reached 31.79±2.25%. These changes were interpreted as a result of epithelial-stromal interactions...
July 18, 2017: Bulletin of Experimental Biology and Medicine
https://www.readbyqxmd.com/read/28724788/multiparametric-immune-profiling-in-hpv-oral-squamous-cell-cancer
#5
Zipei Feng, Daniel Bethmann, Matthias Kappler, Carmen Ballesteros-Merino, Alexander Eckert, R Bryan Bell, Allen Cheng, Tuan Bui, Rom Leidner, Walter J Urba, Kent Johnson, Clifford Hoyt, Carlo B Bifulco, Juergen Bukur, Claudia Wickenhauser, Barbara Seliger, Bernard A Fox
Evaluation of T lymphocyte frequency provides prognostic information for patients with oral squamous cell cancer (OSCC). However, the effect of simultaneously evaluating T cell frequency and assessing suppressive elements and defects in antigen-processing machinery (APM) has not been clarified. Simultaneous characterization of CD3+, CD8+, FoxP3+, CD163+, and PD-L1+ cells using multispectral imaging was performed on sections from 119 patients with HPV- OSCC. Expression of β2-microglobulin, MHC class I heavy chain, and large multifunctional peptidase 10 was quantified, and all data were correlated with patient outcome...
July 20, 2017: JCI Insight
https://www.readbyqxmd.com/read/28716031/a-rare-case-of-intradural-and-extramedullary-epidermoid-cyst-after-repetitive-epidural-anesthesia-case-report-and-review-of-the-literature
#6
Haruki Funao, Norihiro Isogai, Kenshi Daimon, Yuichiro Mima, Hitoshi Sugiura, Takahiro Koyanagi, Masaya Nakamura, Morio Matsumoto, Ken Ishii
BACKGROUND: Spinal epidermoid cysts are benign tumors, which are rarely seen as an intradural extramedullary spinal cord tumor in the conus medullaris region. Acquired spinal epidermoid cysts are mostly caused by iatrogenic procedures, such as lumbar puncture, and the majority of acquired spinal epidermoid cysts have been reported below the L1 level, because lumbar puncture is usually performed around the iliac crest. Here, we report an extremely rare case of an epidermoid cyst that occurred as an intradural and extramedullary spinal cord tumor attached to the conus medullaris after repetitive epidural anesthesia...
July 17, 2017: World Journal of Surgical Oncology
https://www.readbyqxmd.com/read/28713757/epidermoid-cyst-clinical-and-surgical-case-report
#7
Jose Carlos Garcia de Mendonça, Ellen Cristina Gaetti Jardim, Cauê Monteiro Dos Santos, Danilo Chizzolini Masocatto, Diones Calado de Quadros, Murilo Moura Oliveira, Juliana Andrade Macena, Fernando Ribeiro Teixeira
The epidermoid cyst is a development cyst, skin, filled with keratin and imprisoned by stratified squamous epithelium similar to skin. They are more frequent in males. Clinically presenting as flabby, prevalent over the face, neck and back. They are usually asymptomatic and its etiology is directly linked to trauma, as well as the imprisonment of epithelial rests during embryonic fusion. This study aims to present a case report of a patient 54 years old, with an epidermal cyst in the face, which was treated surgically...
January 2017: Annals of Maxillofacial Surgery
https://www.readbyqxmd.com/read/28706144/prognostic-role-of-intratumoral-il-17a-expression-by-immunohistochemistry-in-solid-tumors-a-meta-analysis
#8
Shimin Wang, Zhi'an Li, Guoming Hu
IL-17A is an important proinflammatory cytokine which is frequently elevated in tumor microenvironment. However, the role of intratumoral IL-17A in solid tumors remains controversial. Herein, we conducted a meta-analysis to assess the prognostic impact of intratumoral IL-17A in patients with solid tumor. PubMed and EBSCO were searched to identify the studies evaluating the associations between intratumoral IL-17A measured by immunohistochemistry (IHC) and overall survival (OS) and disease-free survival (DFS) in solid tumors...
June 29, 2017: Oncotarget
https://www.readbyqxmd.com/read/28692192/aromatic-hydrocarbons-and-risk-of-skin-cancer-by-anatomical-site-in-25%C3%A2-000-male-offshore-petroleum-workers
#9
Jo Steinson Stenehjem, Trude Eid Robsahm, Magne Bråtveit, Sven Ove Samuelsen, Jorunn Kirkeleit, Tom Kristian Grimsrud
BACKGROUND: We prospectively examined skin cancer risk according to occupational exposure to aromatic hydrocarbons with adjustment for ultraviolet radiation exposure, in a cohort of 24 917 male offshore petroleum workers. METHODS: Hazard ratios (HRs) and 95% confidence intervals were estimated with Cox regression adapted to a stratified case-cohort design. RESULTS: During 13.5 years of follow-up, 112 cutaneous melanomas (CMs) and 70 non-melanoma skin cancers were identified...
August 2017: American Journal of Industrial Medicine
https://www.readbyqxmd.com/read/28688688/survival-after-refusal-of-surgical-treatment-for-locally-advanced-laryngeal-cancer
#10
Sean T Massa, Nosayaba Osazuwa-Peters, Joel Franco, Gregory W Ward, Ronald J Walker
OBJECTIVE: Survival of advanced laryngeal cancer is declining while the popularity of organ preservation protocols grows. This study assesses the survival impact of refusing surgical treatment for locally advanced, resectable laryngeal cancer. METHODS: Adult patients with T3 and T4a non-metastatic laryngeal squamous cell carcinoma were identified from the Surveillance, Epidemiology and End Results 18 database from 2004 to 2013. Patients were stratified based on a recommendation for extirpative surgery and the refusal of surgery...
August 2017: Oral Oncology
https://www.readbyqxmd.com/read/28688683/predictive-and-prognostic-value-of-ct-based-radiomics-signature-in-locally-advanced-head-and-neck-cancers-patients-treated-with-concurrent-chemoradiotherapy-or-bioradiotherapy-and-its-added-value-to-human-papillomavirus-status
#11
Dan Ou, Pierre Blanchard, Silvia Rosellini, Antonin Levy, France Nguyen, Ralph T H Leijenaar, Ingrid Garberis, Philippe Gorphe, François Bidault, Charles Ferté, Charlotte Robert, Odile Casiraghi, Jean-Yves Scoazec, Philippe Lambin, Stephane Temam, Eric Deutsch, Yungan Tao
OBJECTIVES: To explore prognostic and predictive value of radiomics in patients with locally advanced head and neck squamous cell carcinomas (LAHNSCC) treated with concurrent chemoradiotherapy (CRT) or bioradiotherapy (BRT). MATERIALS AND METHODS: Data of 120 patients (CRT vs. BRT matched 2:1) were retrospectively analyzed. A total of 544 radiomics features of the primary tumor were extracted from radiotherapy planning computed tomography scans. Cox proportional hazards models were used to examine the association between survival and radiomics features with false discovery rate correction...
August 2017: Oral Oncology
https://www.readbyqxmd.com/read/28678401/assessing-the-spectrum-of-germline-variation-in-fanconi-anemia-genes-among-patients-with-head-and-neck-carcinoma-before-age-50
#12
Settara C Chandrasekharappa, Steven B Chinn, Frank X Donovan, Naweed I Chowdhury, Aparna Kamat, Adebowale A Adeyemo, James W Thomas, Meghana Vemulapalli, Caroline S Hussey, Holly H Reid, James C Mullikin, Qingyi Wei, Erich M Sturgis
BACKGROUND: Patients with Fanconi anemia (FA) have an increased risk for head and neck squamous cell carcinoma (HNSCC). The authors sought to determine the prevalence of undiagnosed FA and FA carriers among patients with HNSCC as well as an age cutoff for FA genetic screening. METHODS: Germline DNA samples from 417 patients with HNSCC aged <50 years were screened for sequence variants by targeted next-generation sequencing of the entire length of 16 FA genes...
July 5, 2017: Cancer
https://www.readbyqxmd.com/read/28643734/the-significance-of-serum-leptin-level-in-patients-with-early-stage-nonsmall-cell-lung-cancer
#13
Fatih Karatas, Bulent Yalcin, Suleyman Sahin, Hakan Akbulut, Gungor Utkan, Ahmet Demirkazik, Fikri Icli
BACKGROUNDS: The serum leptin level (SLL) has been shown to increase in patients with nonsmall cell lung cancer (NSCLC). However, available data regarding the relation between SLL and tumor subtypes, survival, cachexia, and tumor respectability in NSCLC are still under debate. The aim of this study is to evaluate SLL in NSCLC patients with and without cachexia. MATERIALS AND METHODS: A total of 71 patients with early stage NSCLC were enrolled in this prospective study...
April 2017: Journal of Cancer Research and Therapeutics
https://www.readbyqxmd.com/read/28639563/the-role-of-apical-contractility-in-determining-cell-morphology-in-multilayered-epithelial-sheets-and-tubes
#14
Rui Zhen Tan, Tanny Lai, K-H Chiam
A multilayered epithelium is made up of individual cells that are stratified in an orderly fashion, layer by layer. In such tissues, individual cells can adopt a wide range of shapes ranging from columnar to squamous. From histological images, we observe that, in flat epithelia such as the skin, the cells in the top layer are squamous while those in the middle and bottom layers are columnar, whereas in tubular epithelia, the cells in all layers are columnar. We develop a computational model to understand how individual cell shape is governed by the mechanical forces within multilayered flat and curved epithelia...
July 19, 2017: Physical Biology
https://www.readbyqxmd.com/read/28638233/esophageal-carcinoma-originating-in-the-surface-epithelium-with-immunohistochemically-proven-esophageal-gland-duct-differentiation-a-case-report
#15
Hiromi Tamura, Hirotsugu Saiki, Takahiro Amano, Masashi Yamamoto, Shiro Hayashi, Hiroka Ando, Reiko Doi, Tsutomu Nishida, Katsumi Yamamoto, Shiro Adachi
A case of esophageal carcinoma exclusively composed of adenocarcinoma simulating an esophageal gland duct in a 61-year-old man is presented. The tumor arose as a slightly elevated lesion in the middle intrathoracic esophagus. It was almost completely overlaid with non-neoplastic stratified squamous epithelial cells. Beneath the overlying surface epithelium, an adenocarcinoma that was bilayered in structure diffusely invaded both the mucosal and submucosal layers. Although the tumor consisted exclusively of adenocarcinomatous cells, a keratinizing squamous cell carcinoma component was focally observed...
June 7, 2017: World Journal of Gastroenterology: WJG
https://www.readbyqxmd.com/read/28634512/diffusion-weighted-imaging-for-the-detection-and-evaluation-of-cholesteatoma
#16
REVIEW
Benjamin Henninger, Christian Kremser
Cholesteatoma is a collection of keratinous debris and stratified squamous epithelium. It is trapped in the middle ear and can lead to bony erosion. The disease is treated surgically often followed by a second-look procedure to check for residual tissue or recurrence. Cholesteatoma has specific signal-intensity characteristics on magnetic resonance imaging with very high signal intensity on diffusion weighted imaging (DWI). Various DWI techniques exist: Echo-planar imaging (EPI)-based and non-EPI-based techniques as well as new approaches like multi-shot EPI DWI...
May 28, 2017: World Journal of Radiology
https://www.readbyqxmd.com/read/28623687/microcalcifications-in-stone-obstructed-human-submandibular-gland-are-associated-with-apoptosis-and-cell-proliferation
#17
Ivan Lau, Ajay Potluri, Cliff-Lawrence Ibeh, Robert S Redman, Edina Paal, Bidhan C Bandyopadhyay
OBJECTIVE: Human submandibular gland (SMG) stones are associated with inflammation, fibrosis and microcalcifications in the surrounding tissues. However, there is little information about the accompanying cell injury-repair process, apoptosis, and cell proliferation. The purpose of this study was to investigate such an association and its clinical significance. DESIGN OF STUDY: Mid-gland paraffin sections of human SMGs ("stone glands") and normal SMGs ("non-stone glands") were subjected to stains for general histology (hematoxylin and eosin), fibrosis (Masson's trichrome), and calcification (alizarin red) and to immunohistochemistry for proliferative activity (Ki-67), and apoptosis (Caspase-3)...
June 7, 2017: Archives of Oral Biology
https://www.readbyqxmd.com/read/28611319/assessing-alpha-tocopherol-levels-in-patients-with-keratocystic-odontogenic-tumor-a-cross-sectional-study
#18
Bhargavi Krishna Ayinampudi, Sushmita Bhargavi Varikoti, Pacha Venkat Baghirath, B Hari Vinay, Ch Gayathri, Ashalata Gannepalli
AIMS AND OBJECTIVES: A keratocystic odontogenic tumour (KCOT) is a benign uni- or multicystic, intraosseous tumour of odontogenic origin, with a characteristic lining of parakeratinized stratified squamous epithelium and potential for aggressive, infiltrative behaviour. Various studies in hamsters showed that, alpha-Tocopherol, which is an active biological form of Vitamin E, is a potent antioxidant known to inhibit tumour formation and also regression of established tumours. So, the aim of the present pilot study was to assess the levels of Alpha-Tocopherol(Vitamin E) in Patients with KCOT and compare them with Vitamin E levels in normal healthy individuals...
March 2017: Indian Journal of Dental Research: Official Publication of Indian Society for Dental Research
https://www.readbyqxmd.com/read/28609461/association-between-polymorphisms-in-pre-mirna-genes-and-risk-of-oral-squamous-cell-cancer-in-a-chinese-population
#19
Enjiao Zhang, Zhongfei Xu, Weiyi Duan, Shaohui Huang, Li Lu
BACKGROUND: MicroRNAs play important roles in the development of human cancers. This case-control study is to evaluate the roles of the polymorphisms in pre-miRNAs on risk of oral cancer in a Chinese population. METHODS: The genotypes of three polymorphisms were determined in 340 patients with oral squamous cell cancer and 340 healthy controls who were frequency matched for age and sex. Odds ratios (ORs) and 95% confidence intervals (95%CIs) were calculated to assess the association...
2017: PloS One
https://www.readbyqxmd.com/read/28601935/a-novel-systemic-immune-inflammation-index-predicts-survival-and-quality-of-life-of-patients-after-curative-resection-for-esophageal-squamous-cell-carcinoma
#20
Lu Wang, Cong Wang, Jiangfeng Wang, Xiaochen Huang, Yufeng Cheng
PURPOSE: A novel systemic immune-inflammation index (SII) based on platelet (P), neutrophil (N), and lymphocyte (L) counts has been reported to be associated with clinical outcomes in several solid tumors. We aimed to investigate its prognostic value in esophageal squamous cell carcinoma (ESCC) and the potential relationship with quality of life (QOL). METHODS: A total of 280 ESCC patients who underwent esophagectomy were enrolled. SII (SII = P × N/L) was calculated on the basis of data obtained within 1 week before surgery...
June 10, 2017: Journal of Cancer Research and Clinical Oncology
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