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https://www.readbyqxmd.com/read/27910944/thyroid-sclerosing-mucoepidermoid-carcinoma-with-eosinophilia-a-clinicopathologic-and-molecular-analysis-of-a-distinct-entity
#1
Akeesha A Shah, Kristin La Fortune, Caitlyn Miller, Stacey E Mills, Zubair Baloch, Virginia LiVolsi, Sanja Dacic, Alyssa L Mahaffey, Marina Nikiforova, Yuri E Nikiforov, Raja R Seethala
Sclerosing mucoepidermoid carcinoma with eosinophilia is a rare thyroid neoplasm of uncertain pathogenesis that resembles salivary gland mucoepidermoid carcinoma. This multi-institutional study characterizes the clinicopathologic and molecular features of this tumor by utilizing next-generation sequencing to assess common mutations and gene fusions involved in thyroid carcinogenesis as well as fluorescence in-situ hybridization for MAML2 translocations typical of salivary gland mucoepidermoid carcinoma. Nine cases (6 females and 3 males, mean age: 59 years, range 30-77 years) were identified...
December 2, 2016: Modern Pathology: An Official Journal of the United States and Canadian Academy of Pathology, Inc
https://www.readbyqxmd.com/read/27900255/adenoid-cystic-carcinoma-of-the-floor-of-the-mouth-a-rare-presentation
#2
Chandresh Jaiswara, Neeraj Kumar Dhiman, Akhilesh Kumar Singh, Naresh Kumar Sharma, Vishal Verma, Arun Pandey
Adenoid cystic carcinoma (ACC) is an unusual salivary gland malignancy that remains poorly understood. It is a slow growing but aggressive neoplasm with a tendency for recurrence. It is characterized by the proliferation of ductal (luminal) and myoepithelial cells in cribriform, tubular, solid, and cystic forms. Standard treatment, including surgery with postoperative radiation therapy, has attained reasonable local control rates, but distant metastases do not allow any improvement in the survival rate. The understanding of the molecular mechanisms driving ACC is quite rudimentary...
November 2016: Journal of Oral Biology and Craniofacial Research
https://www.readbyqxmd.com/read/27882233/high-dose-rate-brachytherapy-for-local-recurrent-adenoid-cystic-carcinoma-of-the-tongue-base-following-postoperative-external-beam-radiotherapy
#3
Sun Young Lee, Jung Soo Kim, Hyoung Cheol Kwon
Adenoid cystic carcinoma is a rare neoplasm commonly originating from the minor salivary glands. The clinical findings typical of this tumor include slow growth, perineural invasion and high frequency of local recurrence. In this study, a patient presented with a tongue base lesion that was treated with surgical excision and additional postoperative external beam radiotherapy. However, local recurrence occurred 8 months after radiotherapy. If recurrence occurs after radiation therapy, total glossectomy should be considered...
November 2016: Molecular and Clinical Oncology
https://www.readbyqxmd.com/read/27864182/pleuromediastinal-epithelial-myoepithelial-carcinomas-a-clinicopathologic-and-immunohistochemical-study-of-two-cases
#4
Annikka Weissferdt, Neda Kalhor, Cesar A Moran
OBJECTIVES: Two cases of epithelial-myoepithelial carcinoma are presented, one arising in the pleura and the other in the anterior mediastinum. The cases represent a unique distribution of these tumors within the thoracic cavity. METHODS: Both patients were men aged 25 and 68 years, respectively, who had chest pain and dyspnea. Imaging revealed an anterior mediastinal mass in one patient and a pleural-based tumor in the other. Neither patient had any history of malignancy, and physical examination did not disclose any tumor elsewhere...
November 17, 2016: American Journal of Clinical Pathology
https://www.readbyqxmd.com/read/27859477/primary-cutaneous-adenoid-cystic-carcinoma-with-myb-aberrations-report-of-three-cases-and-comprehensive-review-of-the-literature
#5
Carlos N Prieto-Granada, Lei Zhang, Cristina R Antonescu, Jean M Henneberry, Jane L Messina
Adenoid cystic carcinoma (ACC) is a relatively rare slow-growing and often-aggressive epithelial-myoepithelial neoplasm that arises in multiple organs including the skin. The t(6;9) (q22-23;p23-24) translocation, resulting in a MYB-NFIB gene fusion has been found in ACCs from the salivary glands and other organs. Recently, MYB aberrations occurring in a subset (40%) of primary cutaneous ACC (PCACC) examples was described. Herein, we report three additional cases of PCACC harboring MYB aberrations. The tumors presented in three males aged 43, 81 and 55 years old and affected the extremities in the first two patients and the scalp in the third one...
November 8, 2016: Journal of Cutaneous Pathology
https://www.readbyqxmd.com/read/27847831/relapsed-acinic-cell-carcinoma-of-the-parotid-gland-with-diffuse-distant-metastasis-case-report-with-literature-review
#6
Yousef Khelfa, Munthir Mansour, Yousef Abdel-Aziz, Ali Raufi, Krista Denning, Yehuda Lebowicz
Acinic cell carcinoma (ACC) is an uncommon salivary gland neoplasm that generally displays an indolent growth pattern. Most cases arise in the major glands, particularly the parotid. However, it can arise from minor salivary glands in the oral cavity and aero-digestive tract. Although ACC is generally a low-grade malignant tumor, poorly differentiated and high-grade transformed variants exhibit a propensity for late recurrence and metastasis. There are no adequate clinical trials that define the optimal approach to patients with metastatic salivary gland tumors due to its rarity...
October 2016: Journal of Investigative Medicine High Impact Case Reports
https://www.readbyqxmd.com/read/27837476/differing-lymphatic-vessels-density-in-salivary-adenoid-cystic-carcinoma-and-pleomorphic-adenoma
#7
Richard Salzman, I Stárek, L Kučerová, A Skálová
Benign and malignant tumours are known to express various factors inducing lymphangiogenesis. Despite their different biological behaviour, salivary pleomorphic adenomas (PA) and adenoid cystic carcinomas (SACC) show similar lymphatic network. Authors compare density of lymphatic network in these tumours. The retrospective study included 20 SACC and 20 PA from salivary tumours. Lymphatic vessel density (LVD) was identified using D2-40 antibody and counted. In SACC, intratumoral, respectively peritumoral, lymphatic vessels were identified in 100 %, respectively 93...
November 11, 2016: Pathology Oncology Research: POR
https://www.readbyqxmd.com/read/27806841/diagnostic-pitfalls-of-infarcted-warthin-tumor-in-frozen-section-evaluation
#8
Yaohong Tan, Oleksandr N Kryvenko, Darcy A Kerr, Jennifer R Chapman, Christina Kovacs, David J Arnold, Andrew E Rosenberg, Carmen R Gomez-Fernandez
Warthin tumor (WT) is the second most common benign salivary gland neoplasm and has characteristic cytologic and histologic findings. Fine-needle aspiration is a common and useful preoperative diagnostic technique, which sometimes leads to ischemic injury resulting in the infarction of these lesions. Infarcted WT may demonstrate variable gross and histologic alterations that may render the diagnosis challenging, particularly during intraoperative frozen section evaluation. In this study, we collected 11 resection specimens from 9 patients with infarcted WT...
December 2016: Annals of Diagnostic Pathology
https://www.readbyqxmd.com/read/27799973/the-oral-pathology-related-articles-published-in-iranian-journal-of-pathology-from-2006-to-2015
#9
Thorakkal Shamim
BACKGROUND: There is a paucity of information about the oral pathology related articles published in a pathology journal. This study aimed to audit the oral pathology related articles published in Iranian Journal of Pathology (Iran J Pathol) from 2006 to 2015. METHODS: Bibliometric analysis of issues of Iran J Pathol from 2006 to 2015 was performed using web-based search. The articles published were analyzed for type of article and individual topic of oral pathology...
2016: Iranian Journal of Pathology
https://www.readbyqxmd.com/read/27757479/-diagnosis-and-treatment-of-parapharyngeal-space-tumors
#10
F Bootz, S Greschus, T van Bremen
The parapharyngeal space extends from the nasopharynx to the oropharynx. It is bordered medially by the pharyngeal wall and the constrictor pharyngis muscles, and laterally by the mandible. One distinguishes between a pre- and a poststyloid space. Tumors of the parapharyngeal space are rare and represent less than 1 % of all head and neck neoplasms. Benign (70-80 %) as well as malignant (20-30 %) tumors arise from different structures of the parapharyngeal space, mainly from salivary glands and nerve structures...
October 18, 2016: HNO
https://www.readbyqxmd.com/read/27749536/can-preoperative-computed-tomography-predict-tissue-origin-of-primary-maxillary-cancer
#11
Ying Yuan, Jingbo Wang, Yingwei Wu, Guojun Li, Xiaofeng Tao
Based on the histopathologic origin, malignant maxillary neoplasms may share some clinical characteristics but have different biological behavior, treatments, and prognoses. The aim of the present study was to explore the association between CT characteristics and tissue origin of primary maxillary cancer (MC). A retrospective review of CT findings was performed in patients diagnosed with MC between January 1, 2005 and December 31, 2013. Univariate and multivariable logistic regression analyses were performed to determine the association between tissue of origin and CT characteristics, with adjustment for possible confounding factors...
October 2016: Medicine (Baltimore)
https://www.readbyqxmd.com/read/27722003/oncocytoma-of-the-submandibular-gland-diagnosis-and-treatment-based-on-clinicopathology
#12
Betty Chen, Joshua I Hentzelman, Ronald J Walker, Jin-Ping Lai
Background. Submandibular oncocytomas are rare benign salivary gland neoplasms. They are typically found in Caucasian patients aged 50-70 years with no gender preference. Due to the overlapping histological and clinical features of head and neck tumors, they are often misdiagnosed. Methods. We report a case of unilateral submandibular gland oncocytoma in a 63-year-old Caucasian man. Results. The patient underwent unilateral submandibular gland resection and histopathologic analysis of the tumor specimen. On follow-up at 2 weeks and 1 year, no recurrence was identified...
2016: Case Reports in Otolaryngology
https://www.readbyqxmd.com/read/27721630/metastatic-renal-cell-carcinoma-of-the-buccal-mucosa-masquerading-as-a-salivary-gland-neoplasm
#13
Ranjini Kudva, Bhavna Nayal, Swarna Kantipudi, Satadru Ray
Metastasis to the oral cavity is a rare occurrence with renal cell carcinoma (RCC) being the third most common tumor to metastasize to this location. Buccal mucosa is rarely involved and in the absence of a known primary, such lesions pose a diagnostic challenge to the pathologist. The histomorphological features may mimic a primary salivary gland neoplasm adding to the dilemma. We present one such case of metastatic RCC of the buccal mucosa.
September 2016: Journal of Oral and Maxillofacial Pathology: JOMFP
https://www.readbyqxmd.com/read/27721618/salivary-duct-carcinoma-in-the-mandibular-anterior-region-the-role-of-immunohistochemical-markers-in-its-definitive-diagnosis
#14
Chetana Chandrasekar, Naser Salati, Lakshmi Rao, Raghu Radhakrishnan
Salivary duct carcinoma (SDC) is a high-grade adenocarcinoma arising from the ductal epithelium of salivary glands which rarely involves the minor salivary glands. The varied histological presentation in the minor salivary gland tumors makes them the most heterogeneous group of neoplasms, making the diagnosis a challenge. This report highlights the importance of immunohistochemical markers in the definitive diagnosis of SDC.
September 2016: Journal of Oral and Maxillofacial Pathology: JOMFP
https://www.readbyqxmd.com/read/27694779/oral-tongue-cancer-in-public-hospitals-in-madrid-spain-1990-2008
#15
A-I García-Kass, A Herrero-Sánchez, G Esparza-Gómez
BACKGROUND: The cancer which appears in the mobile portion of the tongue is the most common neoplasm of the oral cavity. The objective of this study was to analyse oral tongue cancer epidemiology in a population of 610 patients diagnosed between 1990 and 2008 and detailed in the Tumour Registry of the Madrid region. MATERIAL AND METHODS: A retrospective analysis based on the following variables provided in the Tumour Registry was achieved: age, gender, histology, stage, location, treatment...
November 1, 2016: Medicina Oral, Patología Oral y Cirugía Bucal
https://www.readbyqxmd.com/read/27688459/heterozygous-cylindromatosis-gene-mutation-c-1628_1629delct-in-a-family-with-brook-spiegler-syndrome
#16
Cintia Arjona Aguilera, Raquel De la Varga Martínez, Lidia Ossorio García, David Jiménez-Gallo, Cristina Albarrán Planelles, Mario Linares Barrios
Brooke-Spiegler Syndrome (BSS) is a rare genodermatosis characterized by the progressive formation of adnexal skin tumors in the scalp and face, mainly trichoepitheliomas, cylindromas, and spiradenomas. It has also been associated with salivary glands neoplasms. It is due to mutations in the tumor suppressor gene cylindromatosis (CYLD gene) localized on chromosome 16q12-q13. Around 93 mutations have been described. The study of CYLD gene in patients and their relatives is of vital importance to establish the molecular diagnosis and offer appropriate genetic counseling...
September 2016: Indian Journal of Dermatology
https://www.readbyqxmd.com/read/27682157/assessment-of-braf-v600e-ve1-protein-expression-and-braf-gene-mutation-status-in-codon-600-in-benign-and-malignant-salivary-gland-neoplasms
#17
Magdalena Bodnar, Paweł Burduk, Paulina Antosik, Małgorzata Jarmuz-Szymczak, Malgorzata Wierzbicka, Andrzej Marszalek
BACKGROUND: The role of BRAF mutations in cancerogenesis has been demonstrated in several solid tumor types. However, in salivary gland tumors, this genetic alteration is very uncommon, and its role still remains unclear. Thus, the aim of this study was to analyze BRAF V600E (VE1) protein expression with BRAF mutation status in codon 600, in malignant and benign salivary gland tumors. METHODS: Studies were performed on archived formalin-fixed paraffin-embedded tissue sections derived from 95 patients who underwent surgery for tumors of the salivary gland...
September 28, 2016: Journal of Oral Pathology & Medicine
https://www.readbyqxmd.com/read/27663220/parapharyngeal-space-primary-tumours
#18
Gianluigi Grilli, Vanessa Suarez, María Gabriela Muñoz, María Costales, José Luis Llorente
INTRODUCTION AND OBJECTIVES: The aim of this study is to present our experience with the diagnostic and therapeutic approaches for parapharyngeal space tumours. PATIENTS AND METHOD: This study is a retrospective review of 90 patients diagnosed with tumours of the parapharyngeal space and treated surgically between 1984 and 2015. Patients whose tumours were not primary but invaded the parapharyngeal space expanding from another region, tumours originating in the deep lobe of the parotid gland and head and neck metastasis were excluded from this study...
September 20, 2016: Acta Otorrinolaringológica Española
https://www.readbyqxmd.com/read/27649957/differential-expression-of-epithelial-cell-adhesion-molecule-in-salivary-gland-neoplasms
#19
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
https://www.readbyqxmd.com/read/27649650/pleomorphic-adenoma-rehabilitative-treatment-in-growing-up-patient-a-20-years-follow-up
#20
E Brauner, S Jamshir, G Guarino, A Ciolfi, V Valentini, G Pompa, S Di Carlo
OBJECTIVE: Although tumors of minor salivary glands are rare, the pleomorphic adenoma is the most common pathology among the benign neoplasm and can be found with high prevalence in the junction between hard palate and soft palate. Most of the maxillary tumors are surgically treated through either a total or partial maxillectomy. However, surgical defects lead to both clinical and psychologic disorders for the patient. A postoperative obturator prosthesis is a good option in patients who underwent maxillectomy...
September 2016: European Review for Medical and Pharmacological Sciences
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