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Squamous dysplasia

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https://www.readbyqxmd.com/read/28094216/mild-to-moderate-dysplasia-at-surgical-margin-is-a-significant-indicator-of-survival-in-patients-with-oral-cancer
#1
Sandhya Gokavarapu, Nagendra Parvataneni, Sreenivasa Pavagada, L M Chandrasekhara Rao, K V Raju, T Subramaneshwar Rao
OBJECTIVE: The objective of this study was to investigate the significance of mild and moderate dysplasia at the surgical margin with regard to survival and locoregional recurrence. STUDY DESIGN: We investigated cases of primary oral squamous cell carcinoma with negative margins retrospectively from the database of a tertiary cancer hospital. All patients had been treated between January 2010 and December 2012, and margin dysplasia was investigated in a multivariate analysis for locoregional recurrence and overall survival...
November 16, 2016: Oral Surgery, Oral Medicine, Oral Pathology and Oral Radiology
https://www.readbyqxmd.com/read/28091876/hypermethylation-of-ifn-%C3%AE-in-oral-cancer-tissues
#2
Songbo Tian, Chunyang Jiang, Xiaoqin Liu, Sheng Xu, Zhiyong Zhang, Huizhen Chen, Yinghuai Zhang, Yanping Liu, Dong Ma
OBJECTIVES: The study aimed to evaluate the methylation pattern of the interferon-gamma (IFN-γ) gene in oral cancer tissues compared with normal and benign oral disease tissues. MATERIALS AND METHODS: The oral tissues were gained from the patients of 85 cases of oral squamous cell carcinoma (OSCC), 47 cases of oral dysplastic lesions, and 53 normal biopsies. IFN -γ methylation in oral tissues was verified through methylation-specific polymerase chain reaction (PCR) and DNA sequencing analyses, and the expression levels of IFN-γ messenger RNA (mRNA) and protein were detected using real-time reverse transcription (RT)-PCR and enzyme-linked immunosorbent assays, respectively...
January 13, 2017: Clinical Oral Investigations
https://www.readbyqxmd.com/read/28091842/squamous-cell-dysplasia-in-the-proximal-rectum-of-three-patients-treated-for-ulcerative-colitis-on-immunomodulators
#3
James G Connolly, Stephen E Goldstone
BACKGROUND: Anal canal high-grade squamous intraepithelial lesion (HSIL) is the precursor to anal cancer. Immunocompromised patients are at increased risk and disease is usually within 3 cm from the anal verge. High-resolution anoscopy (HRA) with an 8-cm anoscope is used to identify and guide cautery treatment of HSIL. PURPOSE: We report three patients with a long-term history of ulcerative colitis (UC) treated with systemic immunomodulators who developed proximally located rectal HSIL...
January 13, 2017: International Journal of Colorectal Disease
https://www.readbyqxmd.com/read/28089031/role-of-radiofrequency-ablation-in-esophageal-squamous-dysplasia-and-early-neoplasia
#4
EDITORIAL
Wei-Chung Chen, Herbert Wolfsen
No abstract text is available yet for this article.
February 2017: Gastrointestinal Endoscopy
https://www.readbyqxmd.com/read/28086818/narrow-band-imaging-versus-lugol-chromoendoscopy-to-diagnose-squamous-cell-carcinoma-of-the-esophagus-a-systematic-review-and-meta-analysis
#5
Flavio Hiroshi Ananias Morita, Wanderley Marques Bernardo, Edson Ide, Rodrigo Silva Paula Rocha, Julio Cesar Martins Aquino, Mauricio Kazuyoshi Minata, Kendi Yamazaki, Sergio Barbosa Marques, Paulo Sakai, Eduardo Guimarães Hourneaux de Moura
BACKGROUND: In the early stage esophageal cancer, changes in the mucosa are subtle and pass unnoticed in endoscopic examinations using white light. To increase sensitivity, chromoscopy with Lugol's solution has been used. Technological advancements have led to the emergence of virtual methods of endoscopic chromoscopy, including narrow band imaging (NBI). NBI enhances the relief of the mucosa and the underlying vascular pattern, providing greater convenience without the risks inherent to the use of vital dye...
January 13, 2017: BMC Cancer
https://www.readbyqxmd.com/read/28060368/squamous-cell-carcinoma-of-the-upper-aerodigestive-tract-dysplasia-and-select-variants
#6
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/28052370/acantholytic-dermatosis-of-the-vagina-the-diagnostic-challenge-of-acantholytic-disease-in-the-genital-region
#7
J Kentley, R Cerio, M Khorshid, K Gibbon
We report the case of a 24-year-old woman with an 8-month history of deep pelvic pain and postcoital bleeding. Examination revealed desquamation of the vaginal epithelium with tender fissured plaques in the vagina, initially thought to be vaginal intraepithelial neoplasia. Histology showed squamous mucosa with suprabasal acantholysis and hyperkeratosis, and no evidence of viral infection, dysplasia or malignancy. These findings were consistent with acantholytic dermatosis (AD), a rare lesion that resembles Hailey-Hailey and Darier disease histopathologically, but can be distinguished on a clinical basis...
January 4, 2017: Clinical and Experimental Dermatology
https://www.readbyqxmd.com/read/28050382/intestinal-type-adenocarcinoma-from-inverted-papilloma-a-rare-recurrence
#8
Garima Singh, Meeta Singh, Mansi Chandana, Sompal Singh, Namrata Nargotra
Inverted Papilloma (IP) is an uncommon and locally aggressive benign tumour of sinonasal region, which tends to recur after surgical resection. Most tumours are confined to the lateral nasal wall and sinuses, with maxillary sinus being most commonly affected and a male preponderance. It has a known association with in situ and invasive carcinomas with a <10% rate of malignant transformation. Most common association has been seen with squamous cell carcinoma and extremely rare association with adenocarcinoma and small cell carcinoma...
November 2016: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28038710/differentiated-squamous-intraepithelial-lesion-dsil-like-changes-in-the-epidermis-overlying-anogenital-melanocytic-nevi-a-diagnostic-pitfall
#9
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/28036153/semi-quantifiable-angiogenesis-parameters-in-association-with-the-malignant-transformation-of-oral-leukoplakia
#10
D Thiem, S Schneider, Narayan T V, V V Kumar, J Brieger, B Frerich, P W Kämmerer
BACKGROUND: Aim of the study was to assess the role of angiogenesis in the process of malignant transformation of clinical diagnosed oral leukoplakia (OL). MATERIALS AND METHODS: 131 histological preparations (oral leukoplakia/hyperkeratosis without dysplasia (OL; n=49), oral leukoplakia/hyperkeratosis with mild dysplasia (OL-SIN1; n=33), with moderate dysplasia (OL-SIN2; n=13) and leukoplakia-derived oral squamous cell carcinoma (OL-OSCC; n=36)) were evaluated for microvessel density (MVD), vessel diameter as well as for vascular endothelial growth factor (VEGF-A) expression...
December 30, 2016: Journal of Oral Pathology & Medicine
https://www.readbyqxmd.com/read/28000225/topical-oral-cavity-chemoprophylaxis-using-isotretinoin-rinse-a-15-year-experience
#11
Sameep Kadakia, Arvind Badhey, Mary Milam, Thomas Lee, Yadranko Ducic
OBJECTIVES/HYPOTHESIS: To determine the utility of isotretinoin oral rinses as a method of chemoprevention for recurrent oral cavity squamous cell carcinoma (SCC), carcinoma in situ, and dysplasia. STUDY DESIGN: Retrospective cohort study. METHODS: One hundred forty-three patients were initially enrolled in the study; however, 18 were excluded due to inability to tolerate therapy. The included patients were classified into four groups. Group 1 included patients with multiple early stage oral cavity lesions following initial resection...
December 21, 2016: Laryngoscope
https://www.readbyqxmd.com/read/27999209/s4s8-rpa-phosphorylation-as-an-indicator-of-cancer-progression-in-oral-squamous-cell-carcinomas
#12
Jeff Rector, Sasha Kapil, Kelly J Treude, Phyllis Kumm, Jason G Glanzer, Brendan M Byrne, Shengqin Liu, Lynette M Smith, Dominick J DiMaio, Peter Giannini, Russell B Smith, Greg G Oakley
Oral cancers are easily accessible compared to many other cancers. Nevertheless, oral cancer is often diagnosed late, resulting in a poor prognosis. Most oral cancers are squamous cell carcinomas that predominantly develop from cell hyperplasias and dysplasias. DNA damage is induced in these tissues directly or indirectly in response to oncogene-induced deregulation of cellular proliferation. Consequently, a DNA Damage response (DDR) and a cell cycle checkpoint is activated. As dysplasia transitions to cancer, proteins involved in DNA damage and checkpoint signaling are mutated or silenced decreasing cell death while increasing genomic instability and allowing continued tumor progression...
December 16, 2016: Oncotarget
https://www.readbyqxmd.com/read/27994410/estimation-of-salivary-sialic-acid-in-oral-premalignancy-and-oral-squamous-cell-carcinoma
#13
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/27978911/-histopathological-analysis-of-oral-lichen-planus-with-malignant-transformation
#14
Y Gao, H Y Luo
Objective: To estimate the histological features of oral lichen planus (OLP) which underwent malignant transformation and discuss the current problems in OLP pathological diagnosis. Methods: Using the modified WHO OLP criteria (2003), reevaluated the pathological changes of cases diagnosed initially as OLP and transformed into squamous cell carcinomas indicated by subsequent biopsies. Results: Among 3 721 cases of OLP clinically and pathologically diagnosed during 1984 and 2015, there were 19 cases (0.51%) having underwent malignant transformation...
December 9, 2016: Zhonghua Kou Qiang Yi Xue za Zhi, Zhonghua Kouqiang Yixue Zazhi, Chinese Journal of Stomatology
https://www.readbyqxmd.com/read/27976455/evaluation-of-the-p-akt-p-jnk-and-foxo3a-function-in-the-oral-epithelial-dysplasia-malignance
#15
Filipe Nobre Chaves, Thâmara Manoela Marinho Bezerra, Paulo Goberlânio de Barros Silva, Francisco Artur Forte Oliveira, Fabrício Bitu Sousa, Fábio Wildson Gurgel Costa, Ana Paula Negreiros Nunes Alves, Karuza Maria Alves Pereira
OBJECTIVES: To evaluate the expression of p-AKT, p-JNK, FoxO3a and KI-67 in samples of Oral Squamous Cell Carcinoma (OSCC) and Oral Epithelial Dysplasias (OEDs) to understand their possible involvement in the malignant transformation process of oral lesions. MATERIALS AND METHODS: Tissue samples of 20 cases of OSCCs, 20 OEDs and normal oral mucosa were subjected to immunohistochemistry reactions for anti-p-Akt, anti-p-JNK, anti-FoxO3a and anti-Ki-67 antibodies. It was analyzed quantitative (number of immunostained cells) and qualitative (immunostaining intensity) parameters in different cell immunostaining sublocations...
December 14, 2016: Oral Diseases
https://www.readbyqxmd.com/read/27924463/diagnostic-biomarkers-in-oral-verrucous-carcinoma-a-systematic-review
#16
REVIEW
Sepanta Hosseinpour, Fatemeh Mashhadiabbas, Mitra Ghazizadeh Ahsaie
Oral verrucous carcinoma (OVC), a low-grade variant of oral squamous cell carcinoma (OSCC), is most frequently seen in the oral cavity. No clear etiology has been found for this lesion, but human papilloma virus, chewing betel nuts, and ultraviolet radiation are suggested as probable causes. Differential diagnosis of OVC is challenging for oral pathologists. The aim of this study was to review the molecular-based approaches for differential diagnosis of OVC. An electronic search was conducted in Medline and Scopus from January 2004 to July 2015 limited to English language publications...
December 6, 2016: Pathology Oncology Research: POR
https://www.readbyqxmd.com/read/27908632/risk-of-persistent-and-recurrent-cervical-neoplasia-following-incidentally-detected-adenocarcinoma-in-situ
#17
Aime Munro, Jim Codde, Katrina Spilsbury, Nerida Steel, Colin J R Stewart, Stuart G Salfinger, Jason Tan, Ganendra R Mohan, Yee Leung, James Semmens, Peter O'Leary, Vincent Williams, Paul A Cohen
BACKGROUND: Adenocarcinoma in situ of the uterine cervix is a precursor to cervical adenocarcinoma and may coexist with both adenocarcinoma and high-grade squamous dysplasia (cervical intraepithelial neoplasia 2 and 3). Up to 60% of adenocarcinoma in situ lesions are detected incidentally following excisional biopsies performed for the treatment of cervical intraepithelial neoplasia 2/3. To date there are no data regarding risk factors for persisting or progressive cervical neoplasia in these patients...
November 28, 2016: American Journal of Obstetrics and Gynecology
https://www.readbyqxmd.com/read/27900245/image-analysis-assisted-study-of-mitotic-figures-in-oral-epithelial-dysplasia-and-squamous-cell-carcinoma-using-differential-stains
#18
Ankita Tandon, Narendra Nath Singh, V R Brave, Gadiputi Sreedhar
BACKGROUND: Mitosis is a process of cell division resulting in two genetically equivalent daughter cells. Excessive proliferation of cells due to mitosis is the hallmark in pre cancer and cancer. AIMS: This study was conducted to count the number of mitotic figures in normal oral mucosa, oral epithelial dysplasia and squamous cell carcinoma in both Hematoxylin and Eosin (H&E) and Crystal Violet stained sections. Also the overall number of mitotic figures with both stains were compared along with the evaluation of staining efficacy of both the stains...
November 2016: Journal of Oral Biology and Craniofacial Research
https://www.readbyqxmd.com/read/27899988/mtor-downstream-effectors-4ebp1-and-eif4e-are-overexpressed-and-associated-with-hpv-status-in-precancerous-lesions-and-carcinomas-of-the-uterine-cervix
#19
Aristidis Asimomytis, Maria Karanikou, Alexander Rodolakis, Anna Vaiopoulou, Paraskevi Tsetsa, George Creatsas, Theodoros Stefos, Aristidis Antsaklis, Efstratios Patsouris, George Z Rassidakis
The present study aims to investigate the expression levels of two critical mammalian target of rapamycin (mTOR) downstream effectors, 4E binding protein 1 (4EBP1) and eukaryotic initiation factor 4E (eIF4E) proteins, in precancerous squamous intraepithelial lesions and cancer of the uterine cervix, and their association with human papilloma virus (HPV) infection status. Uterine cervical biopsies from 73 patients were obtained, including 40 fresh-frozen samples and 42 archival formalin-fixed, paraffin-embedded tissue specimens...
November 2016: Oncology Letters
https://www.readbyqxmd.com/read/27889544/role-of-eus-in-patients-with-suspected-barrett-s-esophagus-with-high-grade-dysplasia-or-early-esophageal-adenocarcinoma-impact-on-endoscopic-therapy
#20
Michael J Bartel, Timothy M Wallace, Rene D Gomez-Esquivel, Massimo Raimondo, Herbert C Wolfsen, Timothy A Woodward, Michael B Wallace
BACKGROUND AND AIMS: Endoscopic therapy is the standard treatment for high-grade dysplasia and some cases of T1a esophageal adenocarcinoma (EAC), but it is not appropriate for deeply invasive disease. Data on the value of EUS for patient selection for endoscopic or surgical resection are conflicting. We investigated the outcome of esophageal EUS for the staging and treatment selection of patients with treatment-naive, premalignant Barrett's esophagus (BE) and suspected superficial EAC...
November 24, 2016: Gastrointestinal Endoscopy
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