Read by QxMD icon Read

Squamous dysplasia

Sarah F M Pilati, Bianca C Bianco, Daniella S C Vieira, Filipe Modolo
OBJECTIVE: This study aimed to determine the histopathological findings in actinic cheilitis (AC) and lip squamous cell carcinomas (LSCC) diagnosed at Federal University of Santa Catarina in order to attempt to predict the evolution from AC to LSCC based on the comparison of two dysplasia classification systems. METHODS: Histopathological features were evaluated according to the World Health Organization classification of dysplasia and binary system of classification...
October 19, 2016: Oral Diseases
L-C Horn, C E Brambs, R Handzel, G Mehlhorn, D Schmidt, K Schierle
The majority of precancerous lesions of the lower female genital tract (intraepithelial neoplasia, IN) are caused by human papillomavirus (HPV) infections resulting in cellular atypia and in turn an altered tissue architecture. Depending on the pathogenesis, a distinction is made between vulvar intraepithelial neoplasia (VIN) classified as classical VIN associated with high-risk HPV infections (u-VIN) and differentiated VIN (d-VIN), which is associated with lichen sclerosus et atrophicus and p53 alterations...
October 13, 2016: Der Pathologe
Elaine W Flagg, Elizabeth A Torrone, Hillard Weinstock
OBJECTIVES: To examine prevalence of low- and high-grade cervical lesions over time in a large cohort of US female adolescents and women. METHODS: We used health care claims data from 9 million privately insured female patients aged 15 to 39 years to estimate annual prevalence of cytologically detected cervical low-grade (LSIL) and high-grade squamous intraepithelial lesions (HSIL) and high-grade histologically detected cervical intraepithelial neoplasia grades 2 and 3 (CIN2+) during 2007 through 2014...
October 13, 2016: American Journal of Public Health
P Morbini, M Benazzo
Human papillomavirus (HPV)-associated squamous cell carcinoma of the oropharynx is a well-defined entity mostly affecting young to middle-aged male non-smokers. It is generally associated with a favourable outcome, and for this reason a less intensive therapeutic approach has been proposed for this subset of patients. The incidence of HPV-associated oropharyngeal cancers is rapidly increasing in most Western countries, but detailed epidemiological data are not available for the Italian population. Furthermore, among other head and neck regions, a smaller proportion of oral high-grade dysplasia and cancers seems to depend on HPV infection, whereas its role in laryngeal cancer is recognised as less relevant...
August 2016: Acta Otorhinolaryngologica Italica
Renu Tanwar, Asha R Iyengar, K S Nagesh, Seema Patil, B V Subhash
CONTEXT: Tobacco abuse is a well-known risk factor for potentially malignant disorders as well as oral squamous cell carcinoma. Factors that influence tobacco-exposed individuals developing a malignancy may include the combination of total tobacco exposure and genetic susceptibility. AIM: This study was undertaken to determine the prevalence of the glutathione S-transferase M1 (GSTM1) null polymorphism in oral leukoplakia and oral squamous cell carcinoma patients in South Indian population...
July 2016: Indian Journal of Dental Research: Official Publication of Indian Society for Dental Research
Narendra T Chaudhari, Jagdish V Tupkari, Tabita Joy, Manisha S Ahire
BACKGROUND: Mammalian mismatch repair system is responsible for maintaining genomic stability during repeated duplications, and human MutL homolog 1 (hMLH1) protein constitutes an important part of it. Various isolated studies have reported the altered expression of hMLH1 in oral leukoplakia (OL) and oral squamous cell carcinoma (OSCC). Research is lacking in the quantitative estimation and comparison of hMLH1 expression in OL and OSCC. AIMS: To evaluate, quantify and compare hMLH1 immunoexpression in normal oral mucosa, OL and OSCC...
September 2016: Journal of Oral and Maxillofacial Pathology: JOMFP
Veeran Veeravarmal, Ravi David Austin, Nagini Siddavaram, Sambanthan Thiruneelakandan, Mohamed Hanifa Mohamed Nassar
CONTEXT: The epithelium atrophy, as the oral submucous fibrosis (OSMF) progresses, is believed to be an after effect of stromal fibrosis, hyalinization, decrease in vascularity and cellularity and is considered as "ischemic atrophy." Due to hypoxia, caspase-3 get activation and subsequent decrease in viable cell count can occur. AIMS AND OBJECTIVES: To determine caspase-3 expression in various grades of OSMF and oral squamous cell carcinoma (OSCC) to find out whether upregulation of apoptosis is responsible for the epithelial changes in OSMF...
September 2016: Journal of Oral and Maxillofacial Pathology: JOMFP
Rashmi G S Phulari, Rajendrasinh S Rathore, Trupti Pramod Talegaon
BACKGROUND: Various clinical and histological factors have helped in predicting the survival of patients with oral squamous cell carcinoma (OSCC). However, there has been a need for more specialized diagnostic and prognostic factors to avoid subjective variation among opinion. Thus, fractal dimension (FD) can be used as an index of the morphological changes that the epithelial cells undergo during their transformation into neoplastic cell. In oral cancer study, nuclear FD (NFD) can be used as a quantitative index to discriminate between normal, dysplastic and neoplastic oral mucosa...
September 2016: Journal of Oral and Maxillofacial Pathology: JOMFP
Soussan Irani, Alireza Monsef Esfahani, Anahita Ghorbani
BACKGROUNDS: Lichen planus is a chronic systemic disease and oral mucosa is commonly involved. Oral lichen planus (OLP) most commonly affects middle-aged women. The prevalence of the disease ranges between 0.5% and 2.6% in the general population and the range of malignant transformation varies between 0% and 10%. OBJECTIVES: To assess the rate of malignant transformation of OLP samples. MATERIALS AND METHODS: This retrospective study was carried out on 112 medical records of patients with histological diagnosis of OLP who attended the Department of Pathology at the Educational Hospital from 2005 to 2012...
September 2016: Journal of Oral and Maxillofacial Pathology: JOMFP
Sahana Srinath, Asha R Iyengar, Vijaya Mysorekar
BACKGROUND: Recent studies have revealed the involvement of hedgehog (Hh) signaling component in proliferation and invasive behavior of many carcinomas. AIM: This study aims to identify the expression of sonic Hh (SHH) protein of SHH pathway in oral epithelial dysplasia and oral squamous cell carcinoma (OSCC) using SHH (H-160) (Santa Cruz, sc-9042) which could have therapeutic implication in future. MATERIALS AND METHODS: A total of 250 cases comprising 50 normal oral mucosa, 50 cases of oral epithelial dysplasia, 50 well, 50 moderate and 50 poorly differentiated OSCCs were included in the study...
September 2016: Journal of Oral and Maxillofacial Pathology: JOMFP
O J Old, G R Lloyd, J Nallala, M Isabelle, L M Almond, N A Shepherd, C A Kendall, A C Shore, H Barr, N Stone
Barrett's oesophagus (BE) is a premalignant condition that can progress to oesophageal adenocarcinoma. Endoscopic surveillance aims to identify potential progression at an early, treatable stage, but generates large numbers of tissue biopsies. Fourier transform infrared (FTIR) mapping was used to develop an automated histology tool for detection of BE and Barrett's neoplasia in tissue biopsies. 22 oesophageal tissue samples were collected from 19 patients. Contiguous frozen tissue sections were taken for pathology review and FTIR imaging...
October 7, 2016: Analyst
Evie H Carchman, Kristina A Matkowskyj, Louise Meske, Paul F Lambert
INTRODUCTION: Autophagy is an intracellular catabolic process that removes and recycles unnecessary/dysfunctional cellular components, contributing to cellular health and survival. Autophagy is a highly regulated cellular process that responds to several intracellular signals, many of which are deregulated by human papillomavirus (HPV) infection through the expression of HPV-encoded oncoproteins. This adaptive inhibitory response helps prevent viral clearance. A strong correlation remains between HPV infection and the development of squamous cell carcinoma (SCC) of the anus, particularly in HIV positive and other immunosuppressed patients...
2016: PloS One
Tian-Yun Shen, Li-Li Mei, Yun-Tan Qiu, Zhi-Zhou Shi
The aim of the present study was to identify the candidate target genes of genomic aberrations in esophageal squamous cell carcinoma (ESCC). Array comparative genomic hybridization (CGH) and quantitative polymerase chain reaction were applied to analyze the copy number changes and expression level of candidate genes, respectively. Integrative analysis revealed that homozygous deletions of cyclin-dependent kinase inhibitor (CDKN) 2A and CDKN2B and gains of fascin actin-bundling protein 1 (FSCN1) and homer scaffolding protein 3 (HOMER3) occurred frequently in ESCC...
October 2016: Oncology Letters
Y Pu, Y Wang, X Huang, S Chen, Z Wang, G Sun, E Tang, S Zhao, Y Ni, Q Hu
The purpose of this study was to evaluate the clinical relevance between different margin statuses and local recurrence rate in patients undergoing primary surgical treatment for oral squamous cell carcinoma (OSCC). Five hundred and thirty-nine patients with T1-4N0M0 OSCC, who underwent surgery alone at a stomatology hospital in Nanjing, China during the years 2005-2014, were included. Tumour and margin status were assessed. Overall survival (OS), disease-free survival (DFS), and recurrence-free survival (RFS) were calculated by Kaplan-Meier method...
November 2016: International Journal of Oral and Maxillofacial Surgery
David C Whiteman, Bradley J Kendall
Barrett's oesophagus is a condition characterised by partial replacement of the normal squamous epithelium of the lower oesophagus by a metaplastic columnar epithelium containing goblet cells (intestinal metaplasia). Barrett's oesophagus is important clinically because those afflicted are predisposed to oesophageal adenocarcinoma. Prevalence surveys suggest that up to 2% of the population may be affected; most will be unaware of their diagnosis. Risk factors include age, male sex, gastro-oesophageal acid reflux, central obesity and smoking...
October 3, 2016: Medical Journal of Australia
Kei Sakamoto
Notch signaling is involved in cell-cell communication. It is an evolutionarily ancient mechanism and plays a fundamental role in development. The typical function of Notch signaling is the regulation of cell fate segregation at asymmetric division; however, a role in tumorigenesis has also been suggested. Inactivating mutations of NOTCH1 are present in about 10 % of cases of squamous cell carcinoma of the skin, oral cavity, esophagus, and lung, rendering it one of the most frequently mutated genes in squamous cell carcinoma...
September 26, 2016: Pathology International
Ida M Heerfordt, Christoffer V Nissen, Thomas Poulsen, Peter A Philipsen, Hans Christian Wulf
The severity of dysplasia and expression of p53 in actinic keratosis (AK) is of importance for the transformation to squamous cell carcinoma. It is assumed that it is most important to treat thick AKs as they are believed to be more dysplastic than thin AKs. However, a relation between AK thickness and dysplasia or the expression of p53 has never been demonstrated. The aim of this study was to investigate this possible relation. Sixty-six AKs were included for clinical and histological examination. Prior to performing a punch biopsy, the clinical thickness of each AK was measured objectively using two scale bars with a thickness of 0...
September 27, 2016: Scientific Reports
Farzaneh Agha-Hosseini, Nafiseh Sheykhbahaei, Maryam-Sadat SadrZadeh-Afshar
AIM: Many studies have suggested that a lesion originally diagnosed as oral lichen planus (OLP) has different possibilities of undergoing malignant transformation in time, although these findings remain a controversial issue; for example, some studies reported different values of potential malignancy of OLP. INTRODUCTION: World Health Organization (WHO) classifies OLP as a "potentially malignant disorder" with unspecified malignant transformation risk, and suggests that OLP patients should be closely monitored...
2016: Journal of Contemporary Dental Practice
Mukta Pujani, Isha Makker, Annu Makker, Sujata Jetley, Madhu Mati Goel, Sujata Jetley
PURPOSE: To evaluate the expression of Her2/neu and Ki-67 in benign and malignant gallbladder lesions, and to establish correlations with clinico-pathologic parameters. MATERIALS AND METHODS: A retrospective analysis was conducted on formalin fixed paraffin embedded (FFPE) benign (n=25) and malignant gallbladder (n=25) tissue samples. Hematoxylin and eosin stained slides of each case were reviewed for: type of malignancy (whether adenocarcinoma, squamous cell carcinoma, or any other type); grade (well, moderate, and poor); depth of invasion; and pre-neoplastic changes in adjacent mucosal epithelium like metaplasia and dysplasia...
2016: Asian Pacific Journal of Cancer Prevention: APJCP
Sunil Paramel Mohan, Ravi Teja Chitturi, Yoithapprabhunath Thukanayakanpalayam Ragunathan, Suman Jhansi Lakshmi, Jaisanghar Nallusamy, Isaac Joseph
INTRODUCTION: The most common etiology for Oral Squamous Cell Carcinoma (OSCC) is tobacco and tobacco related products which cause nuclear damage to the keratinocytes. The chemical carcinogens not only affect the lining of oral epithelium but also affect the lining epithelium of the excretory ducts of the salivary glands. Thus, there is a possibility of epithelial dysplasia of the salivary duct epithelium which may lead to potential malignant transformation. AIM: The study was performed to see the changes in the minor salivary glands and excretory ducts in cases of oral epithelial dysplasia and OSCC...
July 2016: Journal of Clinical and Diagnostic Research: JCDR
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"