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https://www.readbyqxmd.com/read/28103951/multiple-metastatic-malignant-phyllodes-tumor-of-the-breast-with-tonsillar-metastasis-a-case-report
#1
Tomohiro Sera, Shinichiro Kashiwagi, Tsutomu Takashima, Yuka Asano, Wataru Goto, Nozomi Iimori, Satoru Noda, Naoyoshi Onoda, Masahiko Ohsawa, Kosei Hirakawa, Masaichi Ohira
BACKGROUND: Tonsillar metastasis is very rare and accounts for only 0.8% of tonsillar tumors. And phyllodes tumor of the breast with tonsillar metastasis is very rare. CASE PRESENTATION: A 57-year-old Japanese woman received surgery (partial mastectomy) of malignant phyllodes tumor. Seven months after initial surgery, pharyngeal pain, swelling, and a feeling of dyspnea developed, and tumor was found in the left palatine tonsil. Computed tomography for further evaluation showed a tonsillar lesion with contrast enhancement, and tonsillar metastasis was suspected...
January 19, 2017: BMC Research Notes
https://www.readbyqxmd.com/read/28091730/actin-isoform-expression-patterns-in-adult-extracardiac-and-cardiac-rhabdomyomas-indicate-a-different-cell-of-origin
#2
Christina C Westhoff, Katharina Schoner, Sylvia Hartmann, Andreas M Sesterhenn, Roland Moll
Rhabdomyomas are rare striated muscle-type tumors arising in the heart or in soft tissues. Using a monoclonal antibody specific for the cardiac isoform of α-actin (α-cardiac actin, α-CAA), differential expression patterns in striated muscle tissues were reported previously. The purpose of the present study was to determine whether the α-actin isoform specificity is maintained in rhabdomyomas according to their origin, comparing extracardiac to cardiac rhabdomyomas. We immunohistochemically investigated adult extracardiac (pharyngeal) rhabdomyomas (n = 4) and cardiac rhabdomyomas (n = 7) employing isoform-specific monoclonal antibodies...
January 14, 2017: Virchows Archiv: An International Journal of Pathology
https://www.readbyqxmd.com/read/28048671/su-f-t-104-determining-the-ntcp-parameters-of-pharyngeal-constrictors-and-proximal-esophagus-for-radiation-induced-swallowing-problems-recorded-six-months-after-radiation-therapy-for-head-and-neck-tumors
#3
P Mavroidis, A Price, M Kostich, R Amdur, W Mendenhall, N Sheets, R Green, S Das, L Marks, B Chera
PURPOSE: To estimate the radiobiological parameters of four NTCP models that describe the dose-response relations of pharyngeal constrictors and proximal esophagus regarding the severity of patient reported swallowing problems 6 months post chemo-radiotherapy. To identify the section/structure that best correlates with the manifestation of the clinical endpoints. Finally, to compare the goodness-of-fit of those models. METHODS: Forty-three patients were treated on a prospective multi-institutional phase II study for oropharyngeal squamous cell carcinoma...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28038471/prognostic-impact-of-immune-microenvironment-in-laryngeal-and-pharyngeal-squamous-cell-carcinoma-immune-cell-subtypes-immuno-suppressive-pathways-and-clinicopathologic-characteristics
#4
Georgia Karpathiou, Francois Casteillo, Jean-Baptiste Giroult, Fabien Forest, Pierre Fournel, Alessandra Monaya, Marios Froudarakis, Jean Marc Dumollard, Jean Michel Prades, Michel Peoc'h
BACKGROUND: Immune system affects prognosis of various malignancies. Anti-immune pathways like PD-L1 and CTLA4 are used by the tumor to overcome immune system and they serve as immunotherapy targets. The immune microenvironment of head-and-neck squamous cell carcinoma (SCCHN) has not been sufficiently studied. PATIENTS AND METHODS: 152 SCCHN were immunohistochemically studied for the expression of CD3, CD8, CD57, CD4, granzyme b, CD20, CD163, S100, PD-L1, CTLA4 and CXCR4...
December 27, 2016: Oncotarget
https://www.readbyqxmd.com/read/28024212/thymoma-in-middle-mediastinum-that-induced-tracheal-compression-case-report-and-literature-review
#5
Teiko Sakurai, Tetsuki Sakamoto, Tomoko Wakasa, Yoshio Ohta, Hiroyuki Shiono
BACKGROUND: A thymoma, an epithelial neoplasm of the thymus, mainly occurs in the anterior mediastinum, while few are seen in the middle mediastinum. CASE PRESENTATION: An 83-year-old male was referred for an incidental mass in the middle mediastinum. He had severe dementia and denied symptoms. Our follow-up computed tomography (CT) examinations had revealed the progress of tracheal compression along with tumor enlargement for 2 years. At 85 years old, we performed a thymomectomy via a median sternotomy to avoid complete trachea obstruction...
December 13, 2016: International Journal of Surgery Case Reports
https://www.readbyqxmd.com/read/28007349/the-temporalis-muscle-flap-for-reconstruction-of-soft-palate-and-lateral-oropharyngeal-wall-after-transoral-robotic-surgery
#6
Giuseppe Meccariello, Filippo Montevecchi, Alberto Deganello, Giovanni D'Agostino, Chiara Bellini, Ermelinda Zeccardo, Claudio Vicini
Trans Oral Robotic Surgery (TORS) is a prominent surgical approach for the resection of oropharyngeal tumors without division of the lip and mandible. Some defects following TORS are large and complex enough to benefit soft-tissue coverage. The pedicled temporalis muscle flap is a versatile and reliable flap and may be a valid option to reconstruct defects of the lateral pharyngeal wall and partial soft palate.
December 19, 2016: Auris, Nasus, Larynx
https://www.readbyqxmd.com/read/27999896/correlation-of-pretreatment-18-f-fdg-pet-tumor-textural-features-with-gene-expression-in-pharyngeal-cancer-and-implications-for-radiotherapy-based-treatment-outcomes
#7
Shang-Wen Chen, Wei-Chih Shen, Ying-Chun Lin, Rui-Yun Chen, Te-Chun Hsieh, Kuo-Yang Yen, Chia-Hung Kao
PURPOSE: This study investigated the correlation of the matrix heterogeneity of tumors on (18)F-fluorodeoxyglucose positron emission tomography-computed tomography (PET-CT) with gene-expression profiling in patients with pharyngeal cancer and determined the prognostic factors for radiotherapy-based treatment outcomes. METHODS: We retrospectively reviewed the records of 57 patients with stage III-IV oropharyngeal or hypopharyngeal cancer who had completed definitive therapy...
December 20, 2016: European Journal of Nuclear Medicine and Molecular Imaging
https://www.readbyqxmd.com/read/27986750/human-papillomavirus-regulates-her3-expression-in-head-and-neck-cancer-implications-for-targeted-her3-therapy-in-hpv-patients
#8
Toni M Brand, Stefan Hartmann, Neil E Bhola, Noah D Peyser, Hua Li, Yan Zeng, Erin Isaacson Wechsler, Max V Ranall, Sourav Bandyopadhyay, Umamaheswar Duvvuri, Theresa M LaVallee, Richard C K Jordan, Daniel E Johnson, Jennifer R Grandis
PURPOSE: Human papillomavirus (HPV) 16 plays an etiologic role in a growing subset of HNSCCs, where viral expression of the E6 and E7 oncoproteins are necessary for tumor growth and maintenance. Although patients with HPV(+) tumors have a more favorable prognosis, there are currently no HPV-selective therapies. Recent studies identified differential receptor tyrosine kinase (RTK) profiles in HPV(+) vs. HPV(-) tumors. One such RTK, HER3, is overexpressed and interacts with phosphoinositide 3-kinase (PI3K) in HPV(+) tumors...
December 16, 2016: Clinical Cancer Research: An Official Journal of the American Association for Cancer Research
https://www.readbyqxmd.com/read/27931212/pdgf-aa-mediates-mesenchymal-stromal-cell-chemotaxis-to-the-head-and-neck-squamous-cell-carcinoma-tumor-microenvironment
#9
Tammara L Watts, Ruwen Cui, Peter Szaniszlo, Vicente A Resto, Don W Powell, Irina V Pinchuk
BACKGROUND: The robust desmoplasia associated with head and neck squamous cell carcinoma (HNSCC) suggests that the tumor microenvironment may be an important component in the pathophysiology of this cancer. Moreover, the high recurrence rate and poor clinical response to chemotherapy and radiation treatment further underscores that the non-cancerous cells of the microenvironment, such as mesenchymal stromal cells (MSCs), cancer associated fibroblasts (CAFs), and pericytes, may be important in the pathophysiology of HNSCC...
December 8, 2016: Journal of Translational Medicine
https://www.readbyqxmd.com/read/27930761/transoral-robotic-surgery-assisted-endoscopy-with-primary-site-detection-and-treatment-in-occult-mucosal-primaries
#10
Kyle M Hatten, Bert W O'Malley, Andres M Bur, Mihir R Patel, Christopher H Rassekh, Jason G Newman, Steven B Cannady, Ara A Chalian, Benjamin L Hodnett, Alexander Lin, John N Lukens, Roger B Cohen, Joshua M Bauml, Kathleen T Montone, Virginia A Livolsi, Gregory S Weinstein
Importance: Management of cervical lymph node metastasis without a known primary tumor is a diagnostic and treatment challenge for head and neck oncologists. Identification of the occult mucosal primary tumor minimizes the morbidity of treatment. Objective: To analyze the role of transoral robotic surgery (TORS) in facilitating the identification of a primary tumor site for patients presenting with squamous cell carcinoma of unknown primary (CUP). In addition, we assessed treatment deintensification by determining the number of patients who did not undergo definitive radiation therapy and chemotherapy...
December 8, 2016: JAMA Otolaryngology—Head & Neck Surgery
https://www.readbyqxmd.com/read/27901506/squamous-cell-carcinoma-in-a-wild-european-bullhead-cottus-gobio
#11
F Quaglio, V Zappulli, L Poppi, P Capovilla, F Capparucci, F Marino
A pharyngeal tumor was found in a wild European bullhead. The tumor mass appeared underneath the operculum and was bilobed. The major neoplastic component showed diffuse epithelial squamous differentiation. Crossmonn's trichrome allowed identification of connective tissues whereas no neoplastic cells were stained. Periodic acid-Schiff was negative within the mass, and Giemsa did not show any further diagnostic significance. Immunohistochemistry showed diffuse positive cytoplasmic staining of the neoplastic population with an anti-human pancytokeratin antibody...
November 22, 2016: Diseases of Aquatic Organisms
https://www.readbyqxmd.com/read/27805282/toll-like-receptor-3-stimulation-triggers-metabolic-reprogramming-in-pharyngeal-cancer-cell-line-through-myc-mapk-and-hif
#12
Tanja Matijevic Glavan, Ana Cipak Gasparovic, Benjamin Vérillaud, Pierre Busson, Jasminka Pavelic
Toll-like receptor 3 (TLR3) has a dual role in cancer; its activation can trigger apoptosis as well as stimulate cancer cell survival, proliferation, and progression. We have shown here that TLR3 activation can induce metabolic reprogramming in a pharyngeal cancer cell line, leading to increased aerobic glycolysis, cell migration, elevated levels of reactive oxidative species (ROS), and decreased anti-oxidative response. Key proteins in these signaling pathways are heterogeneous nuclear ribonucleoprotein A1 (hnRNPA1), pyruvate kinase M2 (PKM2), and CD44 variants, which were over-expressed after TLR3 stimulation...
November 2, 2016: Molecular Carcinogenesis
https://www.readbyqxmd.com/read/27801551/sample-preparation-method-considerations-for-integrated-transcriptomic-and-proteomic-analysis-of-tumors
#13
Anupama Rajan Bhat, Manoj Kumar Gupta, Priya Krithivasan, Kunal Dhas, Jayalakshmi Nair, Ram Bhupal Reddy, H V Sudheendra, Sandip Chavan, Harsha Vardhan, Sujatha Darsi, Lavanya Balakrishnan, Shanmukh Katragadda, Vikram Kekatpure, Amritha Suresh, Pramila Tata, Binay Panda, Moni A Kuriakose, Ravi Sirdeshmukh
Sample processing protocols that enable compatible recovery of differentially expressed (DE) transcripts and proteins are necessary for integration of the multiomics data applied in the analysis of tumors. In this pilot study, we compared two different isolation methods for extracting RNA and protein from laryngo-pharyngeal tumor tissues and the corresponding adjacent normal sections. In Method 1, RNA and protein were isolated from a single tissue section sequentially and in Method 2, the extraction was carried out using two different sections and two independent and parallel protocols for RNA and protein...
November 1, 2016: Proteomics. Clinical Applications
https://www.readbyqxmd.com/read/27793330/otorhinolaryngology-manifestations-secondary-to-oral-sex
#14
Claudia Fernández-López, Carmelo Morales-Angulo
INTRODUCTION: Over the last few years, oral and pharyngeal signs and symptoms due to oral sex have increased significantly. However, no review articles related to this subject have been found in the medical literature. The objective of our study was to identify otorhinolaryngological manifestations associated with orogenital/oroanal contact, both in adults and children, in the context of consensual sex or sexual abuse. METHODS: We performed a review of the medical literature on otorhinolaryngological pathology associated with oral sex published in the last 20 years in the PubMed database...
October 25, 2016: Acta Otorrinolaringológica Española
https://www.readbyqxmd.com/read/27764170/clinical-implications-of-fadd-gene-amplification-and-protein-overexpression-in-taiwanese-oral-cavity-squamous-cell-carcinomas
#15
Huei-Tzu Chien, Sou-De Cheng, Wen-Yu Chuang, Chun-Ta Liao, Hung-Ming Wang, Shiang-Fu Huang
Amplification of 11q13.3 is a frequent event in human cancers, including head and neck squamous cell carcinoma. This chromosome region contains several genes that are potentially cancer drivers, including FADD (Fas associated via death domain), an apoptotic effector that was previously identified as a novel oncogene in laryngeal/pharyngeal cancer. This study was designed to explore the role of FADD in oral squamous cell carcinomas (OSCCs) samples from Taiwanese patients, by assessing copy number variations (CNVs) and protein expression and the clinical implications of these factors in 339 male OSCCs...
2016: PloS One
https://www.readbyqxmd.com/read/27762071/immunohistochemical-studies-and-fluorodeoxyglucose-uptake-on-positron-emission-tomography-in-pharyngeal-cancer-for-predicting-radiotherapy-based-treatment-outcomes
#16
Y-C Lin, R-Y Chen, S-W Chen, T-C Hsieh, K-Y Yen, J-A Liang, S-N Yang, Y-C Wang, Y-H Chen, N-H Chow, C-H Kao
OBJECTIVES: This study correlated immunohistochemical studies with fluorodeoxyglucose (FDG) uptake on positron emission tomography-computed tomography (PET-CT) and identified prognostic factors for radiotherapy (RT)-based treatment outcomes in patients with squamous cell carcinoma of the oropharynx and hypopharynx. METHODS: Genomic data from pre-treatment biopsy specimens (Glut1, CAIX, VEGF, HIF-1α, EGFR, Ki-67, Bcl-2, CLAUDIN-4, YAP-1, c-Met and p16) of 76 patients were analysed using tissue microarrays...
October 20, 2016: Clinical Otolaryngology
https://www.readbyqxmd.com/read/27757479/-diagnosis-and-treatment-of-parapharyngeal-space-tumors
#17
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...
November 2016: HNO
https://www.readbyqxmd.com/read/27742669/the-stem-cell-factor-hmga2-is-expressed-in-non-hpv-associated-head-and-neck-squamous-cell-carcinoma-and-predicts-patient-survival-of-distinct-subsites
#18
Kathrin Günther, Ronja Foraita, Juliane Friemel, Frauke Günther, Jörn Bullerdiek, Rolf Nimzyk, Dominique Nadine Markowski, Thomas Behrens, Wolfgang Ahrens
BACKGROUND: The transcription factor high-mobility AT-hook 2 (HMGA2) is involved in stem cell renewal and is expressed in many tumor tissues. Head and neck squamous cell carcinomas (HNSCC) comprise tumors of the upper aerodigestive tract and are characterized by high recurrence rates that represent a challenge to patient management. The study addresses the potential of HMGA2 as a molecular biomarker for HNSCC patient survival. METHODS: Patients with HNSCC of the larynx, pharynx, tonsils, or oral cavity were recruited in a hospital-based case-control study (n=202)...
October 14, 2016: Cancer Epidemiology, Biomarkers & Prevention
https://www.readbyqxmd.com/read/27699727/a-comparison-of-large-soft-palate-defect-reconstruction-using-the-new-tunnel-structure-and-traditional-port-structure-methods
#19
Atsumori Hamahata, Takeshi Beppu, Takao Tokumaru, Takashi Yamaki, Hiroyuki Sakurai
Background For soft palate defects of more than two-thirds, we previously described the bent anterolateral thigh (ALT) method in which the pharyngeal isthmus was reconstructed as a tunnel structure. In this study, we compared the new "tunnel structure" reconstruction in our bent ALT flap method and the traditional "port structure" reconstruction. Methods From April 2010 to March 2015, 25 patients in Saitama Cancer Center (Saitama, Japan) underwent oropharyngeal tumor resection including soft palate resection...
October 3, 2016: Journal of Reconstructive Microsurgery
https://www.readbyqxmd.com/read/27681761/methods-for-reducing-normal-tissue-complication-probabilities-in-oropharyngeal-cancer-dose-reduction-or-planning-target-volume-elimination
#20
Stuart E Samuels, Avraham Eisbruch, Karen Vineberg, Jae Lee, Choonik Lee, Martha M Matuszak, Randall K Ten Haken, Kristy K Brock
PURPOSE: Strategies to reduce the toxicities of head and neck radiation (ie, dysphagia [difficulty swallowing] and xerostomia [dry mouth]) are currently underway. However, the predicted benefit of dose and planning target volume (PTV) reduction strategies is unknown. The purpose of the present study was to compare the normal tissue complication probabilities (NTCP) for swallowing and salivary structures in standard plans (70 Gy [P70]), dose-reduced plans (60 Gy [P60]), and plans eliminating the PTV margin...
November 1, 2016: International Journal of Radiation Oncology, Biology, Physics
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