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Mucoepidermoid carcinoma

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https://www.readbyqxmd.com/read/28935346/resection-of-the-tracheobronchial-bifurcation-with-complete-preservation-of-lung-parenchyma
#1
Georgios Stamatis, Sylvia Fechner, Miguel Rocha, Gerhard Weinreich
BACKGROUND: The resection of the tracheobronchial bifurcation with complete preservation of lung parenchyma remains a challenge owing to the limited indications for surgery, anesthesiologic management, operative technique, and postoperative course. The aim of this retrospective study was to evaluate factors influencing the perioperative course and long-term survival. METHODS: Between 1989 and 2014, 19 patients underwent a resection of the distal trachea and carina with complete preservation of lung tissue, 16 for malignant tumors (7 adenoid cystic carcinomas, 3 carcinoid tumors, 3 mucoepidermoid tumors, 2 squamous cell carcinomas, and 1 small cell carcinomas), 2 for inflammatory stenosis, and 1 after a complex traumatic rupture...
September 18, 2017: Annals of Thoracic Surgery
https://www.readbyqxmd.com/read/28932033/glandular-odontogenic-cyst-series-of-five-cases
#2
Aadithya B Urs, Priya Kumar, Jeyaseelan Augustine, Rewa Malhotra
INTRODUCTION: Glandular odontogenic cyst (GOC) is a clinically rare and histopathologically unusual type of developmental odontogenic cyst with unpredictable and potentially aggressive behaviour. MATERIALS AND METHODS: Archival data of cases histopathologically identified as GOC were analyzed from the Department of Oral Pathology over the past six years. The clinical, radiographic, histopathological features and treatment were evaluated. Special stains such as periodic acid Schiff, mucicarmine along with immunohistochemical staining for cytokeratin 19 were employed to confirm the histopathological diagnosis...
May 2017: Journal of Oral and Maxillofacial Pathology: JOMFP
https://www.readbyqxmd.com/read/28932028/cytological-spectrum-of-salivary-gland-lesions-and-their-correlation-with-epidemiological-parameters
#3
Vaneet Kaur Sandhu, Upender Sharma, Navtej Singh, Arun Puri
BACKGROUND: The role fine-needle aspiration (FNA) in the diagnosis of salivary gland lesions has evolved over the years. Although clinical and radiological parameters help to narrow the differential diagnosis the tissue diagnosis still remains the gold standard. MATERIALS AND METHODS: This study is from January 2013 to December 2015 in our Department of Pathology where 170 salivary gland lesions were aspirated. The aim of the present study was to analyze adequacy rate in relation to the size of lesion and to evaluate varied cytological spectrum of salivary gland lesions with emphasis on differential diagnosis and to correlate cytological diagnosis with age, gender and anatomical site...
May 2017: Journal of Oral and Maxillofacial Pathology: JOMFP
https://www.readbyqxmd.com/read/28930752/salivary-gland-neoplasms-does-morphological-diversity-reflect-tumor-heterogeneity
#4
Miguel Rito, Isabel Fonseca
Salivary gland tumor classification encompasses a vast list of benign and malignant neoplasms. Their morphological diversity is recognized not only between different entities but also within individual tumors. Tumor categories as described by the World Health Organization reflect, in part, a true genetic heterogeneity (e.g., translocations involving CRTC1 and CRTC3-MAML2 genes in mucoepidermoid carcinoma and MYB-NFIB fusion in adenoid cystic carcinoma). Carcinoma ex pleomorphic adenoma shows diversity in its histological appearance, but recurrent rearrangements on PLAG1 and HMGA2 are common to its benign precursor...
September 21, 2017: Pathobiology: Journal of Immunopathology, Molecular and Cellular Biology
https://www.readbyqxmd.com/read/28927048/mucoepidermoid-carcinoma-of-the-sublingual-gland-harboring-a-translocation-of-the-maml2-gene-a-case-report
#5
Kiminobu Sato, Jun Akiba, Ken Nakamura, Hideyuki Abe, Akihiko Kawahara, Takeichiro Aso, Hirohito Umeno, Hiroshi Harada, Hirohisa Yano
Among tumors of the major salivary glands, tumors in the sublingual gland are rare. Although mucoepidermoid carcinoma (MEC) represents a histological type of salivary gland tumor, it is occasionally difficult to diagnose due to its histological variation. The present study reports a case of MEC harboring a mastermind-like transcriptional coactivator 2 (MAML2) gene translocation in the sublingual gland. A 76-year-old Japanese woman with a mass in the left submandibular region was referred to Kurume University Hospital (Kurume, Japan)...
September 2017: Oncology Letters
https://www.readbyqxmd.com/read/28891704/mucoepidermoid-carcinoma-in-the-skull-of-an-orange-winged-amazon-parrot-amazona-amazonica
#6
Melissa R Nau, James W Carpenter, Denise Lin, Sanjeev Narayanan, Mackenzie Hallman
A 33-year-old female intact orange-winged Amazon parrot (Amazona amazonica) presented for a slowly growing mass over the right eye. A computed tomography scan performed with and without intravenous contrast revealed a heterogeneous mixed soft tissue and mineral-dense mass with a small area of non-contrast-enhancing fluid density located between the orbits at the caudal aspect of the nasal passages, with associated lysis of the right caudal nasal passage and the right frontal bone. Following euthanasia, the mass was found to consist of soft tissue between the right eye and nostril over the right frontal bone...
September 2017: Journal of Avian Medicine and Surgery
https://www.readbyqxmd.com/read/28881386/heterogeneous-impact-of-smoking-on-major-salivary-gland-cancer-according-to-histopathological-subtype-a-case-control-study
#7
Michi Sawabe, Hidemi Ito, Taishi Takahara, Isao Oze, Daisuke Kawakita, Yasushi Yatabe, Yasuhisa Hasegawa, Shingo Murakami, Keitaro Matsuo
BACKGROUND: Major salivary gland cancers (M-SGCs) are rare, and have distinct heterogeneous histopathological subtypes. To the authors' knowledge, no consistent evidence of an association between cigarette smoking and the risk of M-SGCs has appeared to date. Furthermore, evidence of potential heterogeneity in the impact of smoking on histopathological subtypes is scarce, despite the fact that the histopathological subtypes of M-SGC exhibit different genetic features. METHODS: The authors conducted a case-control study to investigate the association between smoking and M-SGC by histopathological subtype...
September 7, 2017: Cancer
https://www.readbyqxmd.com/read/28877061/maml2-rearrangements-in-variant-forms-of-mucoepidermoid-carcinoma-ancillary-diagnostic-testing-for-the-ciliated-and-warthin-like-variants
#8
Justin A Bishop, Morgan L Cowan, Chung H Shum, William H Westra
Mucoepidermoid carcinoma (MEC) is the most common salivary gland malignancy. Recent studies have shown that most MECs harbor gene fusions involving MAML2-an alteration that appears to be specific for MEC, a finding that could be diagnostically useful. While most cases of MEC are histologically straightforward, uncommon variants can cause considerable diagnostic difficulty. We present 2 variants of MEC for which MAML2 studies were crucial in establishing a diagnosis: a previously undescribed ciliated variant, and the recently described Warthin-like variant...
September 4, 2017: American Journal of Surgical Pathology
https://www.readbyqxmd.com/read/28872555/18f-fdg-pet-ct-imaging-of-tracheal-mucoepidermoid-carcinoma
#9
Lei Jiang, Yan Huang, Shanshan Huang, Qiang Li, Huoqiang Wang
A 54-year-old woman presented with dry cough for 3 months. An FDG PET/CT was performed to evaluate a tracheal nodule, which was revealed by chest CT. The PET/CT images showed increased FDG uptake with SUVmax of 3.3 in the known tracheal lesion. The results of pathological examination from the specimen of bronchoscopy were consistent with tracheal mucoepidermoid carcinoma.
September 1, 2017: Clinical Nuclear Medicine
https://www.readbyqxmd.com/read/28846782/nasal-cavity-tumefactive-fibroinflammatory-lesion-mimicking-recurrent-mucoepidermoid-carcinoma
#10
Daniel Thomas Ginat, Elizabeth Blair
No abstract text is available yet for this article.
August 2017: Ear, Nose, & Throat Journal
https://www.readbyqxmd.com/read/28840842/chemokine-and-chemokine-receptor-patterns-in-patients-with-benign-and-malignant-salivary-gland-tumors-a-distinct-role-for-ccr7
#11
Mohammad Reza Haghshenas, Mohammad Javad Ashraf, Bijan Khademi, Abbas Ghaderi, Nasrollah Erfani, Mahboobeh Razmkhah
To explore the molecular mechanisms involved in pathophysiology of malignant and benign salivary gland tumors (SGTs), we investigated main tumor-inducing chemokines and chemokine receptors, CXCL12/CXCR4/ACKR3 (CXCR7), CXCR3/CXCL10, CCR5/CCL5, CCL21/CCR7, CCL2, CCR4, CXCR5, CCR6, and CXCL8 in tumor tissues. Parotid tissues were obtained from 30 patients with malignant and benign SGTs. Quantitative real-time polymerase chain reaction (qRT-PCR) was employed to determine the mRNA expression pattern of the mentioned chemokines/chemokine receptors and immunohistochemistry (IHC) was performed to verify the expression of CCR7...
March 1, 2017: European Cytokine Network
https://www.readbyqxmd.com/read/28836518/contrast-enhanced-endoscopic-ultrasonography-features-of-a-mucoepidermoid-carcinoma-of-the-pancreas
#12
Sho Kitagawa, Hirokazu Suii, Hiroyuki Miyakawa
No abstract text is available yet for this article.
August 24, 2017: Endoscopic Ultrasound
https://www.readbyqxmd.com/read/28833169/intraosseous-mucoepidermoid-carcinoma-outcome-review
#13
Catherine Merna, Ashley Kita, Jacob Wester, Daniel Diaz-Aguilar, Jeffrey D Goldstein, Fernando Palma Diaz, Keith Blackwell, Maie A St John
OBJECTIVE: Identify the effect of patient characteristics, disease traits, and treatment modality on patient outcomes in the rare disease process of intraosseous mucoepidermoid carcinoma. STUDY DESIGN: Retrospective review of institutional case records and literature. METHODS: This study includes one case report, a literature review of the MEDLINE database from 1950 through June 2017 using keywords "intraosseous" and "mucoepidermoid," and a query of the University of California, Los Angeles, Department of Pathology database for all documented cases of intraosseous mucoepidermoid carcinoma of the head and neck...
August 22, 2017: Laryngoscope
https://www.readbyqxmd.com/read/28820280/review-of-periorbital-nerve-enlargement-and-biopsy-techniques
#14
Valerie H Chen, Brent R Hayek, Hans E Grossniklaus, Ted H Wojno, H Joon Kim
Periorbital nerve enlargement commonly indicates perineural invasion of malignancy or inflammatory conditions. This study reviews the role of supraorbital and infraorbital nerve biopsies in patients presenting with radiographic enlargement and to elucidate the surgical technique involved. A retrospective chart review (1997-2014) was performed at a single tertiary center. Patients with radiographic confirmation of enlarged supraorbital/infraorbital nerves that underwent biopsy were included. Charts were reviewed for: patient demographics and history, clinical symptoms and findings, radiographic findings, surgical method, and treatment...
August 18, 2017: Orbit
https://www.readbyqxmd.com/read/28816646/chronic-cigarette-smoke-mediated-global-changes-in-lung-mucoepidermoid-cells-a-phosphoproteomic-analysis
#15
Hitendra S Solanki, Jayshree Advani, Aafaque Ahmad Khan, Aneesha Radhakrishnan, Nandini A Sahasrabuddhe, Sneha M Pinto, Xiaofei Chang, Thottethodi Subrahmanya Keshava Prasad, Premendu Prakash Mathur, David Sidransky, Harsha Gowda, Aditi Chatterjee
Proteomics analysis of chronic cigarette smoke exposure is a rapidly emerging postgenomics research field. While smoking is a major cause of lung cancer, functional studies using proteomics approaches could enrich our mechanistic understanding of the elusive lung cancer global molecular signaling and cigarette smoke relationship. We report in this study on a stable isotope labeling by amino acids in cell culture-based quantitative phosphoproteomic analysis of a human lung mucoepidermoid carcinoma cell line, H292 cells, chronically exposed to cigarette smoke...
August 2017: Omics: a Journal of Integrative Biology
https://www.readbyqxmd.com/read/28797455/prognostic-factors-and-occult-nodal-disease-in-mucoepidermoid-carcinoma-of-the-oral-cavity-and-oropharynx-an-analysis-of-the-national-cancer-database
#16
Mark A Ellis, Evan M Graboyes, Terry A Day, David M Neskey
OBJECTIVES: Mucoepidermoid carcinoma (MEC) is an uncommon malignancy that most commonly occurs in the parotid gland followed by the minor salivary glands of the upper aerodigestive tract, most notably in the oral cavity (OC) and oropharynx (OP). Because of its rarity, few studies have been performed that are specific to MEC within the OC and OP. The objective of this study is to describe the tumor characteristics and prognostic features for MEC of the OC and OP. MATERIALS AND METHODS: The National Cancer Database (NCDB) was used for this study...
September 2017: Oral Oncology
https://www.readbyqxmd.com/read/28793830/warthin-tumor-like-mucoepidermoid-carcinoma
#17
Nicholas Heatley, Kevin J Harrington, Khin Thway
Mucoepidermoid carcinoma (MEC) shows a wide morphologic spectrum, including epithelium with oncocytic or squamous metaplastic changes overlying a prominent cystic architecture, as well as tumor-associated lymphoid tissue. We illustrate a case of MEC of the parotid in a 17-year-old female, in which all these features occurred extensively, such that they accounted for almost the entire neoplasm, and closely mimicked Warthin tumor histologically. This highlights the need for diagnostic awareness of this particular morphologic variant of MEC, as patients could potentially be inappropriately discharged from follow-up if diagnosed with a benign neoplasm...
August 1, 2017: International Journal of Surgical Pathology
https://www.readbyqxmd.com/read/28790247/-pulmonary-mucoepidermoid-carcinoma-with-hilar-lymph-node-metastasis-complicated-by-myelodysplastic-syndrome
#18
Yoshinari Matsuda, Hiroshi Moriyama, Masashi Inaba, Yoshihiko Kubo, Masahiro Kitada, Satoshi Hayashi, Kei Ishibashi, Satoshi Okazaki, Nana Takahashi, Shunsuke Yasuda, Masahiro Abe, Satoshi Hirata
A 65-year-old woman was found to have a mass shadow on chest computed tomography. The patient had been diagnosed as having myelodysplastic syndrome 3 years before admission. She was transferred to our hospital for further examination of the mass in the lower lobe of left lung. The mass was positron emission tomography-positive (SUVmax of 8.6)suggesting a malignant neoplasm. Serum concentrations of carcinoembryonic antigen was elevated to 8.7 ng/ml. Preoperative laboratory studies showed anemia (hemoglobin 6...
August 2017: Kyobu Geka. the Japanese Journal of Thoracic Surgery
https://www.readbyqxmd.com/read/28772134/expression-of-c-x-c-motif-chemokine-receptors-4-and-7-in-salivary-gland-neoplasms
#19
Ekarat Phattarataratip, Kittipong Dhanuthai
OBJECTIVES: Chemokine receptors have been shown to overexpress in several cancer types. Binding of chemokines to their cognate chemokine receptors on tumor cells can promote tumor growth, angiogenesis and metastasis. The purposes of this study was to examine the expression of chemokine receptors, CXCR4 and CXCR7, in salivary gland neoplasms and its association with pathologic characteristics. DESIGN: Sixty-two cases of salivary gland neoplasms, including 25 mucoepidermoid carcinomas (MEC), 18 adenoid cystic carcinomas (ACC), 14 pleomorphic adenomas (PA) and 5 polymorphous low-grade adenocarcinoma (PLGA) were investigated for CXCR4 and CXCR7 expression immunohistochemically...
July 26, 2017: Archives of Oral Biology
https://www.readbyqxmd.com/read/28757800/case-report-recurrent-mucoepidermoid-carcinoma-of-the-tongue-in-adult-female-patient-with-lung-cancer
#20
Arielle Rubin, John Davis, Karim Jreije, Henry Wu, Randy Oppenheimer
There is a steady rise in incidence of malignant salivary gland tumors in the United States, with mucoepidermoid carcinoma (MEC) the most frequent. Although 40% of MECs are found in the parotid gland, these lesions possess the capacity to develop anywhere along the aerodigestive tract. Here, we present a case of recurrent tongue MEC in a young adult female patient with history of lung malignancy and multiple brain metastases. Without a universally accepted management protocol for recurrent MECs, the current clinical practice uses tumor grade, location, and clinical progression to determine both prognosis and goals of care...
2017: Clinical Medicine Insights. Ear, Nose and Throat
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