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Mucoepidermoid carcinoma

Min-Shu Hsieh, Hsuang Wang, Yi-Hsuan Lee, Jenq-Yuh Ko, Yih-Leong Chang
Hyalinizing clear cell carcinoma (HCCC) is a rare salivary gland tumor with a specific EWSR1-ATF1 fusion gene and can have mucin production. Mucoepidermoid carcinoma (MEC) with a clear cell component is its morphologic mimic. Using MAML2 fluorescence in situ hybridization (FISH), a total of 49 MEC cases were separated into MAML2 fusion-positive (32 cases) and MAML2 fusion-negative groups (17 cases). This study used EWSR1 FISH to investigate MAML2 fusion-negative cases to identify previously unrecognized HCCC...
October 18, 2016: Human Pathology
Daniel J Zaccarini, Xiaobing Deng, Jamie Tull, Charlene Maciak, Alfredo L Valente, Shengle Zhang
The characteristic immunoprofile for the diagnosis of synovial sarcoma, a neoplasm of unclear tissue origin, is expression of transducer-like enhancer of split 1 (TLE-1), CD99, partial expression of cytokeratin, and epithelial membrane antigen by immunohistochemistry (IHC). Diagnostic dilemma or misdiagnosis can occur due to overlap in IHC and morphology with carcinomas, and particularly poorly differentiated and metastatic tumors. The frequency of TLE-1 and CD99 expression in carcinomas by IHC has not been previously assessed...
October 7, 2016: Applied Immunohistochemistry & Molecular Morphology: AIMM
Swathi Kaliki, Suzanne K Freitag, James Chodosh
PURPOSE: To describe clinical presentation and histopathological features of a nodulo-ulcerative variant of ocular surface squamous neoplasia (OSSN). METHODS: Retrospective study. RESULTS: Six patients were identified with a nodulo-ulcerative variant of OSSN. Mean age at presentation was 56 years. One patient was immunosuppressed because of human immunodeficiency virus infection. The initial misdiagnosis was necrotizing scleritis/sclerokeratitis (n = 4), intraepithelial neoplasia (n = 1), and chalazion (n = 1)...
October 5, 2016: Cornea
Olga Micol Martínez, Elena Daghoum Dorado, María Dolores Amorós García, María Isabel Oviedo Ramírez, Isabel de la Fuente Muñoz, Jose Luis Fuster Soler
Malignant salivary gland tumors are rare in children, mostly represented by low-grade mucoepidermoid carcinomas. For these patients, long-term survival rates above 95% are reported after surgical resection. Here we report a case of a 9-year-old girl with a high grade locally advanced mucoepidermoid carcinoma undergoing adjuvant radiotherapy and chemotherapy after surgery. We emphasize the controversy and lack of evidence-based indication for these highly toxic adjuvant therapy modalities in children.
September 5, 2016: Rare Tumors
S Karatayli-Ozgursoy, J A Bishop, A T Hillel, L M Akst, S R Best
Malignant salivary gland tumours of the larynx are very rare, with limited reports of clinical outcomes. We present the decade-long experience of a single institution. A 10-year retrospective chart review of a tertiary head and neck cancer centre was performed. Index patients were identified from a review of a pathology database, and reviewed by a head and neck pathologist. Patient demographics, presenting signs and symptoms, treatment modalities and clinical outcomes were extracted from electronic medical records...
August 2016: Acta Otorhinolaryngologica Italica
Taneeru Sravya, Guttikonda Venkateswara Rao, Manchikatla Praveen Kumar, K Sudheerkanth
Adenosquamous carcinoma (ASC) of the head and neck (H and N) is an aggressive variant of squamous cell carcinoma (SCC). They are described as SCC subtype with high infiltrative capacity and also presents with dual histomorphology, having both squamous and glandular cell components. ASC of the H and N region is considered as a controversial tumor, as it is similar to salivary gland mucoepidermoid carcinoma. It has been described in a variety of body sites, including uterine cervix, lung and pancreas. ASC rarely develops in the upper aerodigestive tract, particularly in the oral cavity...
September 2016: Journal of Oral and Maxillofacial Pathology: JOMFP
Leorik Pereira da Silva, Marianna Sampaio Serpa, Luiz Arthur Barbosa da Silva, Ana Paula Veras Sobral
Central mucoepidermoid carcinoma (CMC) of the jaw bones is a rare malignant salivary gland tumor of unknown pathogenesis, comprising about 4% of all mucoepidermoid carcinomas (MECs). Most cases are histologically classified as a low-grade tumor and radiographically appear as a well-defined unilocular or multilocular radiolucent lesion. Block resection or wide local excisions are the treatment of choice and patients usually show a good overall prognosis although a long-term follow-up is necessary. This report describes a case of a 28-year-old male with MEC in the posterior region of the mandible and discusses its clinical, radiographic and histopathological findings...
September 2016: Journal of Oral and Maxillofacial Pathology: JOMFP
Kittipong Dhanuthai, Somsri Rojanawatsirivej, Ajiravudh Subarnbhesaj, Watcharaporn Thosaporn, Sompid Kintarak
BACKGROUND: Oral malignant tumors in Thailand have not been extensively studied. Hence the following study was conducted. AIMS: To determine the prevalence and clinicopathologic data of the oral malignant tumors from Thailand. SUBJECTS AND METHODS: Biopsy records of the Oral Pathology Department, Chulalongkorn University; Department of Oral Biology and Diagnostic Sciences, Chiang Mai University; Department of Oral Diagnosis, Khon Kaen University and Department of Stomatology, Prince of Songkla University, were reviewed for lesions diagnosed in the category of oral malignant tumors from 2005-2014...
September 2016: Journal of Oral and Maxillofacial Pathology: JOMFP
Ahmed Qannam, Ibrahim O Bello
CONTEXT: Mucoepidermoid carcinoma (MEC) is the most common salivary gland malignancy and its grading is greatly consequential in the management and prognosis of patients with the disease. AIMS: To compare histologic grading systems in MEC of minor salivary glands. SETTINGS AND DESIGN: Two qualitative (modified Healy and Memorial Sloan-Kettering Cancer Center [MSKCC] methods) and two quantitative (Armed Forces Institute of Pathology [AFIP] and Brandwein methods) were evaluated...
October 2016: Indian Journal of Pathology & Microbiology
Hung-Pin Lin, Chieh Yuan Cheng, Andy Sun, Chun-Pin Chiang
No abstract text is available yet for this article.
October 3, 2016: Journal of the Formosan Medical Association, Taiwan Yi Zhi
Aleksandra J Ochal-Choińska, Ewa Osuch-Wójcikiewicz
Salivary gland tumours are a group of lesions whose heterogeneity of biological and pathological features is widely reflected in the molecular aspect. This is demonstrated by an increasing number of studies in the field of genetics of these tumours. The aim of this study was to collect the most significant scientific reports on the cytogenetic and molecular data concerning these tumours, which might facilitate the identification of potential biomarkers and therapeutic targets. The analysis covered 71 papers included in the PubMed database...
2016: Contemporary Oncology Współczesna Onkologia
Vivian P Wagner, Marco A T Martins, Manoela D Martins, Kristy A Warner, Liana P Webber, Cristiane H Squarize, Jacques E Nör, Rogerio M Castilho
Patients with mucoepidermoid carcinoma (MEC) experience low survival rates and high morbidity following treatment, yet the intrinsic resistance of MEC cells to ionizing radiation (IR) and the mechanisms underlying acquired resistance remain unexplored. Herein, we demonstrated that low doses of IR intrinsically activated NFκB in resistant MEC cell lines. Moreover, resistance was significantly enhanced in IR-sensitive cell lines when NFκB pathway was stimulated. Pharmacological inhibition of the IKK-β/IκBα/NFκB axis, using a single dose of FDA-approved Emetine, led to a striking sensitization of MEC cells to IR and a reduction in cancer stem cells...
September 22, 2016: Oncotarget
Roger Su, James K Fortson, Vijaykumar G Patel, Pavan Bhat, Ramez Ghanbari, Sahiba Khurana, Nazli Haq, Kanwar Sodhi, Gillian E Lawrence
No abstract text is available yet for this article.
September 2016: American Surgeon
Santiago Sherwell-Cabello, Antonio Maffuz-Aziz, Nina Paola Ríos-Luna, Verónica Bautista-Piña, Sergio Rodríguez-Cuevas
OBJECTIVE: To show the incidence, as well as the clinical and histopathological characteristics, of patients diagnosed with mammary salivary gland-like carcinomas at our institution. MATERIALS AND METHODS: A retrospective study was conducted in all women diagnosed with breast cancer at our institution from January 2005 to February 2016. Patients with diagnosis of salivary gland-like breast carcinomas were included. RESULTS: In this period, 6384 patients were diagnosed with breast cancer at our institution; salivary gland-like carcinomas were found in 7 patients (0...
September 13, 2016: Pathology, Research and Practice
Hao Ni, Xue-Ping Zhang, Xiao-Tong Wang, Qiu-Yuan Xia, Jing-Huan Lv, Xuan Wang, Shan-Shan Shi, Rui Li, Xiao-Jun Zhou, Qiu Rao
Mammary analogue secretory carcinoma (MASC) of salivary glands is a newly recognized tumor entity. To explore a more practical and convenient immunohistochemical approach to distinguish MASC from other tumors arising from salivary glands as well as to expand the immunologic and genetic lineage of MASC, we examined 17 MASC using clinicopathologic, immunohistochemical and molecular analysis. 18 cases of acinic cell carcinoma (AciCC), 18 cases of adenoid cystic carcinoma (ACC), 22 cases of mucoepidermoid carcinoma (MEC), and 14 cases of basal cell adenocarcinoma (BCA) were brought in for comparison...
September 19, 2016: Human Pathology
Ekarat Phattarataratip, Marisa Masorn, Werapong Jarupoonphol, Sirinpaporn Supatthanayut, Pichanee Saeoweiang
Epithelial cell adhesion molecule (EpCAM) is the epithelial-specific molecule expressed on various epithelial cell types. The function of EpCAM involves cellular adhesion, proliferation, and signaling in both normal tissues and cancers. The purposes of this study were to investigate the EpCAM expression in salivary gland neoplasms and examine its relationship with pathologic characteristics. Forty-two cases of salivary gland neoplasms, including 20 mucoepidermoid carcinomas (MECs), 11 adenoid cystic carcinomas (ACCs), 9 pleomorphic adenomas (PAs), and 2 polymorphous low-grade adenocarcinomas (PLGAs) were enrolled...
October 2016: Annals of Diagnostic Pathology
Y Huang, C Y Wu, W Wu, L K Hou, L P Zhang
OBJECTIVE: To investigate the clinicopathological features and epidermal growth factor receptor (EGFR) gene mutation of primary pulmonary mucoepidermoid carcinoma (PMC). METHODS: Fifth-five cases of PMC were included in the study; their clinicopathological, immunohistochemical features were evaluated, and in 31 cases, paraffin embedded specimens were subjected to mutation analysis of exons 18, 19, 20 and 21 of the EGFR gene by ARMS method. RESULTS: There were 32 females and 23 males...
September 8, 2016: Zhonghua Bing Li Xue za Zhi Chinese Journal of Pathology
Nikhil I Malgaonkar, Abdulwahab Abuderman, M Y Kharma, S A Al-Maweri, N A Alaizari, Ma Altamimi, S Darwish, Bassel Tarakji
INTRODUCTION: Salivary gland neoplasms are not uncommon lesions that are seen in the head and neck region. The role of cell cycle regulators as well as that of oncogenes remains unexplored in the pathogenesis of these neoplasms. AIM: Present study was conducted to evaluate the expression of p27 in the three common salivary gland neoplasms. MATERIALS AND METHODS: A total of 34 cases (19 pleomorphic adenoma, 8 mucoepidermoid carcinoma and 7 adenoid cystic carcinoma) were included...
July 2016: Journal of Clinical and Diagnostic Research: JCDR
Shirin Saravani
No abstract text is available yet for this article.
July 2016: Journal of Clinical and Diagnostic Research: JCDR
Zhi-Ming Wang, Hui-Yuan Wen, Dong-Sheng Yang, Ming Ye, Ying Ma, Li-Ping Zhang
PURPOSE: To investigate the expression and significance of discoidin domain receptor 1 (DDR1) in salivary gland mucoepidermoid carcinoma (MEC). METHODS: Immunohistochemical and Western blot method were used to detect the expression of DDR1 in MEC M3SP2 and MC3 cell lines. Immunohistochemical method was used to detect the expression of DDR1 in 58 MEC and 20 normal salivary gland tissues. SPSS 13.0 software package was used for statistical analysis. RESULTS: The positive expression rate of DDR1 in salivary gland MEC tissues was 79...
June 2016: Shanghai Kou Qiang Yi Xue, Shanghai Journal of Stomatology
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