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https://www.readbyqxmd.com/read/28101017/efficacy-of-a-film-forming-medical-device-containing-piroxicam-and-sun-filters-in-the-treatment-of-multiple-actinic-keratosis-lesions-in-a-subject-with-a-history-of-kaposi-sarcoma
#1
Elisabetta Scotti, Salvatore Deledda, Massimo Milani
Actinic keratosis (AK) is considered a premalignant form of skin cancer due to chronic sun exposure. In addition, human papilloma virus (HPV) has been advocated a role in the pathogenesis of this clinical condition. HPV proteins (mainly E6 and E7) seem to act synergistically with ultraviolet (UV) radiation in reducing the defensive mechanisms of keratinocyte apoptosis after UV damage. Data regarding the involvement of other viruses, i.e. human herpes viruses (HHV), in the pathogenesis of AK are so far controversial...
September 2016: Case Reports in Dermatology
https://www.readbyqxmd.com/read/28098569/human-papillomavirus-genotyping-of-incidental-malignant-and-premalignant-lesions-on-hemorrhoidectomy-specimens
#2
Yiang Hui, M Ruhul Quddus, Jayasimha N Murthy, Dongfang Yang, C James Sung, Shaolei Lu, Murray B Resnick, Li Juan Wang
Routine histopathologic examination of hemorrhoidectomy specimens is controversial having been described as not useful and expensive with few of these common cases demonstrating incidental lesions. However, unexpected premalignant and malignant lesions have been detected on excised hemorrhoids. The high-risk human papillomavirus (HR-HPV) types associated with these incidentally identified high-grade lesions are presently unknown. We aimed to identify cases of incidental high-grade anal intraepithelial neoplasia (HG-AIN) and anal squamous cell carcinoma incidentally discovered on hemorrhoidectomy specimens, genotype HR-HPVs from these lesions, and assess p53 and p16 expression by immunohistochemistry to identify risk factors for their development...
January 16, 2017: American Journal of Surgical Pathology
https://www.readbyqxmd.com/read/28071621/assessment-of-the-sociodemographic-characteristics-and-efficacy-of-screening-for-oral-head-and-neck-potential-malignant-lesions-in-apparently-healthy-adults-in-jos-nigeria
#3
A A Adoga, O A Silas, J P Yaro, E T Okwori, A A Iduh, C J Mgbachi
BACKGROUND: The efficacy of screening for oral, head and neck cancers (HNCs) in adequately identifying high-risk groups is controversial. OBJECTIVES: This study aims to review our experience with a free oral, HNC-screening program to determine the sociodemographic characteristics of the participants and the effectiveness of this program to improve future programs. MATERIALS AND METHODS: A prospective cross-sectional survey of participants in a free oral, HNC screening exercise was performed in the years 2009, 2012, and 2013...
April 2016: Indian Journal of Cancer
https://www.readbyqxmd.com/read/28069683/targeted-deep-sequencing-reveals-full-methylation-profiles-of-multiple-hpv-types-and-potential-biomarkers-for-cervical-cancer-progression
#4
Pengyuan Liu, Marissa Iden, Samantha Fye, Yi-Wen Huang, Elizabeth Hopp, Chen Chu, Yan Lu, Janet S Rader
BACKGROUND: Invasive cervical cancer (ICC) and its premalignant phase (cervical intraepithelial neoplasia; CIN1-3) are distinguished by gynecological and pathological examination, yet no current methodologies can predict precancerous lesions that are destined to progress to ICC. Thus, development of reliable assays to assess patient prognosis is much needed. METHODS: HPV DNA methylation is significantly altered in cervical disease. Using an HPV-enrichment approach and next-generation DNA sequencing, methylation status was characterized in a case-case comparison of CIN (n = 2 CIN1; n = 2 CIN2; n = 20 CIN3) and ICC (n = 37) samples...
January 9, 2017: Cancer Epidemiology, Biomarkers & Prevention
https://www.readbyqxmd.com/read/28060368/squamous-cell-carcinoma-of-the-upper-aerodigestive-tract-dysplasia-and-select-variants
#5
Bruce M Wenig
Upper aerodigestive tract (UADT) mucosal premalignant lesions include non-keratinizing and keratinizing intraepithelial dysplasia. The keratinizing type of intraepithelial dysplasia represents the majority of UADT dysplasias. Historically, grading of UADT dysplasias has followed a three tier system to include mild, moderate and severe dysplasia. Recent recommendations have introduced a two tier grading scheme to including low-grade (ie, mild dysplasia) and high-grade (moderate and severe dysplasia/carcinoma in situ) providing for better consensus among pathologists in the interpretation of such dysplastic lesions...
January 2017: Modern Pathology: An Official Journal of the United States and Canadian Academy of Pathology, Inc
https://www.readbyqxmd.com/read/28060366/oral-lichenoid-lesions-distinguishing-the-benign-from-the-deadly
#6
Susan Müller
Oral lichen planus is a chronic inflammatory disease of unknown etiology or pathogenesis with varied disease severity that waxes and wanes over a long period of time. Although a common oral mucosal disease, accurate diagnosis is often challenging due to the overlapping clinical and histopathological features of oral lichen planus and other mucosal diseases. Other immune-mediated mucocutaneous diseases can exhibit lichenoid features including mucous membrane pemphigoid, chronic graft-versus-host disease, and discoid lupus erythematosus...
January 2017: Modern Pathology: An Official Journal of the United States and Canadian Academy of Pathology, Inc
https://www.readbyqxmd.com/read/28060141/pd-l1-expression-in-premalignant-and-malignant-trophoblasts-from-gestational-trophoblastic-diseases-is-ubiquitous-and-independent-of-clinical-outcomes
#7
Pierre-Adrien Bolze, Sophie Patrier, Jérôme Massardier, Touria Hajri, Fatima Abbas, Anne Marie Schott, Fabienne Allias, Mojgan Devouassoux-Shisheboran, Gilles Freyer, François Golfier, Benoît You
OBJECTIVE: Recently reported expression of programmed cell death 1 ligand 1 (PD-L1) in gestational trophoblastic diseases (GTDs) suggests that the immune tolerance of pregnancy might be hijacked during neoplastic process. We assessed PD-L1 protein expression in premalignant and malignant GTD lesions and analyzed associations with disease severity and chemotherapy outcomes. METHODS: We included 83 GTD whole-tissue sections from 76 patients in different treatment settings...
January 4, 2017: International Journal of Gynecological Cancer
https://www.readbyqxmd.com/read/28059468/gene-expression-analysis-combined-with-functional-genomics-approach-identifies-itih5-as-tumor-suppressor-gene-in-cervical-carcinogenesis
#8
Jessica Dittmann, Angelique Ziegfeld, Lars Jansen, Mieczyslaw Gajda, Vera Kloten, Edgar Dahl, Ingo B Runnebaum, Matthias Dürst, Claudia Backsch
Progression from human papillomavirus-induced premalignant cervical intraepithelial neoplasia (CIN) to cervical cancer (CC) is driven by genetic and epigenetic events. Our microarray-based expression study has previously shown that inter-α-trypsin-inhibitor heavy chain 5 (ITIH5) mRNA levels in CCs were significantly lower than in high-grade precursor lesions (CIN3s). Therefore, we aimed to analyze in depth ITIH5 expression during cervical carcinogenesis in biopsy material and cell culture. Moreover, functional analyses were performed by ectopic expression of ITIH5 in different cell lines...
January 6, 2017: Molecular Carcinogenesis
https://www.readbyqxmd.com/read/28047379/mo-de-207a-02-a-feature-preserving-image-reconstruction-method-for-improved-pancreaticlesion-classification-in-diagnostic-ct-imaging
#9
J Xu, B Tsui, F Noo
PURPOSE: To develop a feature-preserving model based image reconstruction (MBIR) method that improves performance in pancreatic lesion classification at equal or reduced radiation dose. METHODS: A set of pancreatic lesion models was created with both benign and premalignant lesion types. These two classes of lesions are distinguished by their fine internal structures; their delineation is therefore crucial to the task of pancreatic lesion classification. To reduce image noise while preserving the features of the lesions, we developed a MBIR method with curvature-based regularization...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28038710/differentiated-squamous-intraepithelial-lesion-dsil-like-changes-in-the-epidermis-overlying-anogenital-melanocytic-nevi-a-diagnostic-pitfall
#10
Kvetoslava Michalova, Dmitry V Kazakov, Michael Michal, Ladislav Hadravsky, Denisa Kacerovska, Boris Rychly, Marketa Miesbauerova, Michal Michal
BACKGROUND: Differentiated squamous intraepithelial lesion (dSIL) is morphologically and immunohistochemically analogous in the whole anogenital region. dSIL is a premalignant lesion frequently misinterpreted histopathologically as a benign dermatosis. The authors describe a peculiar change in the basal cell layer of the epidermis/epithelium overlying anogenital melanocytic nevi that may histopathologically imitate dSIL. The aim of this study is to familiarize the pathologists with this pitfall to avoid its possible overdiagnosis as dysplasia...
February 2017: Annals of Diagnostic Pathology
https://www.readbyqxmd.com/read/28009429/association-between-toll-like-receptor-and-tumor-necrosis-factor-immunological-pathways-in-uterine-cervical-neoplasms
#11
Lucas G G de Matos, Eduardo B Cândido, Paula V T Vidigal, Polyanna H C Bordoni, Rivia M Lamaita, Márcia M Carneiro, Agnaldo L da Silva-Filho
INTRODUCTION: The immune system plays a critical role in the defense against human papillomavirus (HPV) infection and its persistence. Toll-like receptors (TLRs) are membrane receptors responsible for activation of the innate immune response, and an association between TLR expression and uterine cervical cancer has been shown. Tumor necrosis factors (TNFs) are among the main mediators of skin and mucosa inflammation. The aim of this study was to demonstrate the association between TLR and TNF immune expression and cervical cancer and premalignant cervical lesions...
November 15, 2016: Tumori
https://www.readbyqxmd.com/read/28006994/the-role-of-human-epididymis-secretory-protein-e4-in-patients-with-endometrial-cancer-and-premalignant-endometrial-lesions
#12
Setenay Arzu Yılmaz, Sündüz Özlem Altınkaya, Özlem Seçilmiş Kerimoglu, Aybike Tazegül Pekin, Fikret Akyürek, Tolgay Tuyan Ilhan, Nilgün Benzer, Ali Unlu, Hasan Yuksel, Cetin Celik
We evaluated the concentrations of human epididymis secretory protein E4 (HE4) and Ca-125 in relation to clinicopathologic features in patients with endometrial cancer and premalignant endometrial lesions. Women with abnormal uterine bleeding (n = 167) who underwent endometrial sampling were divided into four groups. Group 1: endometrial cancer (n = 68), group 2: atypical endometrial hyperplasia (n = 12), group 3: endometrial hyperplasia without atypia (n = 39) and group 4: controls (n = 48)...
December 22, 2016: Journal of Obstetrics and Gynaecology: the Journal of the Institute of Obstetrics and Gynaecology
https://www.readbyqxmd.com/read/28000308/implementation-of-an-e-learning-module-improves-the-consistency-in-the-histopathological-diagnosis-of-sessile-serrated-lesions-within-a-nationwide-population-screening-program
#13
Joep E G IJspeert, Ariana Madani, Lucy I H Overbeek, Evelien Dekker, Iris D Nagtegaal
BACKGROUND: Distinguishing premalignant sessile serrated lesions (SSL) from hyperplastic polyps (HP) is difficult for pathologists in daily practice. We aimed to evaluate nationwide variability within histopathology laboratories in the frequency of diagnosing SSL as compared to HP within the Dutch population based screening program for colorectal cancer (CRC) and to assess the effect of an e-learning module on interlaboratory consistency. METHODS: Data were retrieved from the Dutch Pathology Registry (PALGA) from start of the nationwide population screening program, January 2014, until December 2015...
December 21, 2016: Histopathology
https://www.readbyqxmd.com/read/27996369/advanced-imaging-techniques-in-gastrointestinal-endoscopy
#14
Adarsh M Thaker, V Raman Muthusamy
The fundamental approach to endoscopy is to identify concerning and potentially premalignant lesions in the gastrointestinal tract, sample or resect the area of interest, await histologic results, and subsequently formulate a treatment and/or surveillance strategy. Detecting subtle lesions and deciding whether they are clinically significant are challenges that rely on the endoscopist's observation skills and experience. Enhanced imaging technologies have been developed to aid in lesion identification and classification, enabling better visualization of the lumen from a wide-field view while also enabling real-time near-field, including cellular level, imaging of the tissue...
December 20, 2016: Journal of Laparoendoscopic & Advanced Surgical Techniques. Part A
https://www.readbyqxmd.com/read/27994410/estimation-of-salivary-sialic-acid-in-oral-premalignancy-and-oral-squamous-cell-carcinoma
#15
Vishakha Chaudhari, G L Pradeep, Nilima Prakash, Aarti M Mahajan
AIMS: Oral cancer is the most life-threatening disease of oral tissues. In societies where the incidence of oral cancer is high, clinically recognizable premalignant lesions are particularly common. Diagnosing oral cancers at an early stage is critical in improving the survival rate and reducing the morbidity associated with the disease. Alterations in the sialic acid levels in cancer patients have stimulated interest in this sugar residue as a possible tumor marker. SETTINGS AND DESIGN: The purpose of this study was to estimate the salivary sialic acid levels in patients with oral premalignancy and squamous cell carcinoma and to correlate it with their grades to develop a cost-effective and noninvasive diagnostic parameter...
October 2016: Contemporary Clinical Dentistry
https://www.readbyqxmd.com/read/27994328/unexpected-benefit-of-the-positron-emission-tomography-computed-tomography-using-18-f-fluorodeoxyglucose-report-of-a-case
#16
Cemil Caliskan, Can Karaca, Mustafa Ozsoy, Erhan Akgun, Mustafa A Korkut
The positron emission tomography/computed tomography (PET/CT) has been a new tool utilized in the diagnosis and staging of various cancers. However, common worldwide utilization of the PET/CT includes some economic, legal, and ethic controversies. Although PET/CT scanning can detect colorectal premalignant lesions in an early treatable stage, most governments' health care system does not pay for it as a screening test because of its economic burden. Thus, people are forced to make vital decisions about their health because of health policies of their governments...
October 2016: Indian Journal of Surgery
https://www.readbyqxmd.com/read/27992790/association-between-high-risk-human-papillomavirus-infection-and-co-infection-with-candida-spp-and-trichomonas-vaginalis-in-women-with-cervical-premalignant-and-malignant-lesions
#17
Ishita Ghosh, Richard Muwonge, Srabani Mittal, Dipanwita Banerjee, Pratip Kundu, Ranajit Mandal, Jaydip Biswas, Partha Basu
BACKGROUND: Human papillomavirus (HPV) is the necessary cause of cervical cancer. Cervico-vaginal infection with pathogens like Chlamydia is a likely cofactor. The interactions between HPV, Trichomonas vaginalis (TV) and Candida spp. are less understood, though inflammation induced by these pathogens has been demonstrated to facilitate oncogenesis. OBJECTIVE: Our study aimed to evaluate the association between Candida spp. and TV co-infection with HPV in cervical oncogenesis...
December 12, 2016: Journal of Clinical Virology: the Official Publication of the Pan American Society for Clinical Virology
https://www.readbyqxmd.com/read/27984435/tissue-fluorescence-imaging-velscope-for-quick-non-invasive-diagnosis-in-oral-pathology
#18
Marco Cicciù, Alan Scott Herford, Gabriele Cervino, Giuseppe Troiano, Floriana Lauritano, Luigi Laino
Oral squamous cell carcinoma is the most common form of malignancy of the oral cavity; its incidence is increasing and late-stage presentation is common. It is usually predated by oral premalignant disorders. For this reason, early diagnosis is fundamental to reduce the malignant transformation of oral premalignant disorders and for increase the survival rate for oral cancer. Scraping the surface of the lesion is useful for having cytological features of the investigated tissue. The features of smears of oral premalignant lesions are the keratinization growth (red, orange, brown), the increased nuclear area and so the nuclear hyperchromatism, the nuclear pleomorphism, and the chromatin clumping...
December 14, 2016: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/27976639/p16-protein-is-upregulated-in-a-stepwise-fashion-in-colorectal-adenoma-and-colorectal-carcinoma
#19
Mahmoud Al-Ahwal, Wafaey Gomaa, Eman Emam, Yousif Qari, Abdelbaset Buhmeida, Salman Radwi, Basim Al-Maghrabi, Mohammad Al-Qahtani, Jaudah Al-Maghrabi
BACKGROUND/AIMS: p16 is tumor suppressor gene acting as a cell cycle regulator. The present study was conducted to compare p16 expression in normal, dysplastic, and malignant colonic mucosae, and to explore its relation to clinicopathological variables and follow-up data in colorectal carcinoma (CRC). PATIENTS AND METHODS: Tissue microarrays were performed from 25 normal colonic mucosae, 41 colonic adenomas, and 191 CRC, with corresponding 50 nodal metastases. Immunohistochemistry was performed using anti-p16 antibody, sections were scored, and statistical analysis was performed...
November 2016: Saudi Journal of Gastroenterology: Official Journal of the Saudi Gastroenterology Association
https://www.readbyqxmd.com/read/27958289/wsb1-overcomes-oncogene-induced-senescence-by-targeting-atm-for-degradation
#20
Jung Jin Kim, Seung Baek Lee, Sang-Yeop Yi, Sang-Ah Han, Sun-Hyun Kim, Jong-Min Lee, Seo-Yun Tong, Ping Yin, Bowen Gao, Jun Zhang, Zhenkun Lou
Oncogene-induced senescence (OIS) or apoptosis through the DNA-damage response is an important barrier of tumorigenesis. Overcoming this barrier leads to abnormal cell proliferation, genomic instability, and cellular transformation, and finally allows cancers to develop. However, it remains unclear how the OIS barrier is overcome. Here, we show that the E3 ubiquitin ligase WD repeat and SOCS box-containing protein 1 (WSB1) plays a role in overcoming OIS. WSB1 expression in primary cells helps the bypass of OIS, leading to abnormal proliferation and cellular transformation...
December 13, 2016: Cell Research
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