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https://www.readbyqxmd.com/read/29785209/acute-suppurative-thyroiditis-caused-by-thyroid-papillary-carcinoma-in-the-right-thyroid-lobe-of-a-healthy-woman
#1
Hazuki Otani, Masakazu Notsu, Sayo Koike, Miwa Morita, Masahiro Yamamoto, Mika Yamauchi, Takahumi Fuchiwaki, Ichiro Morikura, Noriaki Aoi, Hideyuki Kawauchi, Teruaki Iwabashi, Asuka Araki, Noriyoshi Ishikawa, Riruke Maruyama, Toshitsugu Sugimoto
Background: The thyroid gland is resistant to microbial infection, because of its organ characteristics such as encapsulation, iodine content, and rich blood supply. Therefore, acute suppurative thyroiditis (AST), as a bacterial infection of the thyroid gland, is rarely seen. AST typically takes places on the left side the neck region in children, because of the coincidence of the left piriform sinus fistula, as a most common route of infection. AST is also usually seen in immunocompromised hosts...
2018: Thyroid Research
https://www.readbyqxmd.com/read/29785183/evaluation-of-reirradiation-in-locally-advanced-head-and-neck-cancers-toxicity-and-early-clinical-outcomes
#2
Amit Bahl, Arun Singh Oinam, Arun Elangovan, Satinder Kaur, Gaurav Trivedi, Roshan Verma, Sudhir Bhandari, Sushmita Ghoshal, Naresh Kumar Panda
Objectives: Locoregional recurrence is the predominant pattern of treatment failure in advanced head and neck cancers. Reirradiation is a useful modality to treat inoperable head and neck cancer patients with recurrent disease. The aim of the present study was to analyze the treatment toxicity and early clinical outcomes in patients undergoing reirradiation. Methods: Twenty patients of head and neck cancers with recurrences or second cancers were evaluated. Reirradiation was done using simultaneous integrated boost volumetric modulated arc therapy (SIB VMAT), intensity modulated radiotherapy (IMRT), or conventional radiotherapy using 6MV photons...
2018: Journal of Oncology
https://www.readbyqxmd.com/read/29782304/role-of-in-vivo-reflectance-confocal-microscopy-in-the-analysis-of-melanocytic-lesions
#3
Elena-Daniela Serban, Francesca Farnetani, Giovanni Pellacani, Maria Magdalena Constantin
Worldwide melanoma incidence and mortality are increasing (1). Despite the ongoing research, advanced melanoma is still incurable; therefore, the most appropriate solution seems to be early detection combined with complete surgical excision (2). Since the diagnostic protocol of suspicious lesions includes a complete excision with safety margins (2), the problem of unnecessary scarring is significant. The real challenge in this case is to have a properly formulated diagnosis before acquiring a biopsy. Currently available non-invasive techniques are coherence tomography, digital dermoscopy, and reflectance confocal microscopy...
April 2018: Acta Dermatovenerologica Croatica: ADC
https://www.readbyqxmd.com/read/29781765/individualized-titanium-mesh-combined-with-platelet-rich-fibrin-and-deproteinized-bovine-bone-a-new-approach-for-challenging-augmentation
#4
Jonas Lorenz, Sarah Al-Maawi, Robert Sader, Shahram Ghanaati
Autologous bone transfer is regarded as the gold standard for ridge augmentation before dental implantation, especially in severe bony defects caused by tumor resection or atrophy. In addition to the advantages of autologous bone, transplantation has several disadvantages, such as secondary operation, increased morbidity and pain. The present study reports, for the first time, a combination of a xenogeneic bone substitute (BO) with platelet-rich fibrin (PRF), which is a fully autologous blood concentrate derived from the patient's own peripheral blood by centrifugation...
May 21, 2018: Journal of Oral Implantology
https://www.readbyqxmd.com/read/29780907/calcified-amorphous-tumor-a-rare-cause-of-central-retinal-artery-occlusion
#5
Jeffrey H Ma, Manjot K Gill
Purpose: We report the case of a central retinal artery occlusion secondary to presumed embolus from a calcified amorphous tumor of the heart, a very rare non-neoplastic cardiac mass. Observations: A 60-year-old female presented with acute unilateral vision loss of the left eye. Examination revealed hand motion visual acuity of the left eye and a left relative afferent pupillary defect. Fundoscopy showed whitening of the macula with a cherry red spot, consistent with a central retinal artery occlusion...
June 2018: American Journal of Ophthalmology Case Reports
https://www.readbyqxmd.com/read/29780735/the-expression-and-functional-significance-of-vascular-endothelial-cadherin-cd44-and-vimentin-in-oral-squamous-cell-carcinoma
#6
Soussan Irani, Arash Dehghan
Objectives: Ninety percent of head and neck cancers are squamous cell carcinoma which develops in the oral cavity. Metastasis is the main causative factor for death in 90% of all cancer-related deaths and begins with the invasion of tumor cells through the walls of small blood vessels or lymph vessels. A growing body of evidence has shown that vasculogenic mimicry (VM) facilitates tumor growth and cancer metastasis. The current study aimed to present the role of vascular endothelial (VE)-cadherin, CD44, and vimentin in inducing VM and epithelial-mesenchymal transition (EMT) and to identify the cancer stem cell (CSC) niche in different grades of oral squamous cell carcinoma (OSCC)...
March 2018: Journal of International Society of Preventive & Community Dentistry
https://www.readbyqxmd.com/read/29780644/spindle-cell-hemangioma-in-the-mucosa-of-the-upper-lip-a-case-report-and-review-of-the-literature
#7
Kazuhiro Murakami, Kazuhiko Yamamoto, Tsutomu Sugiura, Tadaaki Kirita
Spindle cell hemangioma (SCH) is a unique benign vascular lesion. We present a case of SCH in the upper lip of a 41-year-old woman. A submucosal nodular mass 30 × 20 mm in size was observed in the left upper lip. The mass developed 5 years earlier and enlarged after repeated ethanol injections. The mass was elastic firm, mobile, bluish in color, and well demarcated in magnetic resonance imaging. Under the clinical diagnosis of hemangioma, surgical excision was performed under local anesthesia. Microscopically, the lesion was composed of irregular cavernous spaces and multiple solid cellular areas...
2018: Case Reports in Dentistry
https://www.readbyqxmd.com/read/29779936/early-response-assessment-on-mid-treatment-computed-tomography-predicts-for-locoregional-recurrence-in-oropharyngeal-cancer-patients-treated-with-definitive-radiation-therapy
#8
Rafi Kabarriti, N Patrik Brodin, George Lundgren, Nitin Ohri, Wolfgang A Tomé, Shalom Kalnicki, Madhur K Garg
PURPOSE: To evaluate whether a response assessment using mid-treatment computed tomography (CT) scans during definitive radiation therapy (RT) for oropharyngeal head and neck cancer can predict for locoregional recurrence (LRR). METHODS AND MATERIALS: Head and neck cancer patients who receive RT at our institution undergo CT repeat scans at the 15th fraction, with treatment replanning in the case of an inadequate dose to gross disease or an increased dose to organs at risk...
April 6, 2018: International Journal of Radiation Oncology, Biology, Physics
https://www.readbyqxmd.com/read/29777587/epidermal-growth-factor-receptor-egfr-density-may-not-be-the-only-determinant-for-the-efficacy-of-egfr-targeted-photoimmunotherapy-in-human-head-and-neck-cancer-cell-lines
#9
Wei Peng, Henriette S de Bruijn, Eric Farrell, Mouldy Sioud, Vida Mashayekhi, Sabrina Oliveira, Go M van Dam, Jan L N Roodenburg, Max J H Witjes, Dominic J Robinson
OBJECTIVE: The aim of this study was to investigate the effects of targeted photoimmunotherapy (PIT) in vitro on cell lines with various expression levels of epidermal growth factor receptor (EGFR) using an anti-EGFR targeted conjugate composed of Cetuximab and IR700DX, phthalocyanine dye. MATERIALS AND METHODS: Relative EGFR density and cell binding assay was conducted in three human head & neck cancer cell lines (scc-U2, scc-U8, and OSC19) and one reference cell line A431...
May 19, 2018: Lasers in Surgery and Medicine
https://www.readbyqxmd.com/read/29777266/-no-evidence-for-reduced-late-toxicity-with-dose-reduction-in-the-elective-lymph-node-region-in-primary-radiochemotherapy-of-head-and-neck-tumors
#10
Mohammad Hreib, Mechthild Krause
No abstract text is available yet for this article.
May 18, 2018: Strahlentherapie und Onkologie: Organ der Deutschen Röntgengesellschaft ... [et Al]
https://www.readbyqxmd.com/read/29775683/viscoelastic-modeling-of-the-fusion-of-multicellular-tumor-spheroids-in-growth-phase
#11
Guillaume Dechristé, Jérôme Fehrenbach, Elena Griseti, Valérie Lobjois, Clair Poignard
BACKGROUND: Since several decades, the experiments have highlighted the analogy of fusing cell aggregates with liquid droplets. The physical macroscopic models have been derived under incompressible assumptions. The aim of this paper is to provide a 3D model of growing spheroids, which is more relevant regarding embryo cell aggregates or tumor cell spheroids. METHODS: We extend the past approach to a compressible 3D framework in order to account for the tumor spheroid growth...
May 15, 2018: Journal of Theoretical Biology
https://www.readbyqxmd.com/read/29775002/-clinical-significance-of-four-quadrant-localization-in-the-diagnosis-and-treatment-of-metastatic-carcinoma-of-the-neck-with-unknown-primary
#12
Y Y Gao, X H Chen
Objective: The aim of this study is to investigate the clinical significance of four quadrant localization in the diagnosis and treatment of unknown primary cervical metastases. Method: The clinical data with unknown primary cervical metastases, were analyzed retrospectively. All the patients have not been found the original site in the initial treatment. There are four quadrants in the neck, the neck line as the longitudinal axis, and edge of cricoid cartilage as the horizontal axis. When cervical metastasis occurred in the left and right upper quadrant, the primary tumor site and radiotherapy from the skull base to the root of the neck; when appear in left and right lower quadrant, the primary investigation site and radiotherapy from neck to thoracic mediastinum, left lower abdomen also includes following primary search...
June 5, 2017: Journal of Clinical Otorhinolaryngology, Head, and Neck Surgery
https://www.readbyqxmd.com/read/29774993/-preliminary-study-on-the-expression-of-egfrv%C3%A2-and-cxcr4-in-head-and-neck-squamous-cell-carcinoma
#13
H D Zhang, S C Gong, Y Q Liu, S B He, Q X Zhang, M Y Si, Z K Yu
Objective: The aim of this study is to detect the expression of EGFRvⅢ and CXCR4 in HNSCC and to explore its possible mechanism. Method: We selected 60 cases of HNSCC from May 2013 to November 2016 in our hospital for surgical treatment, including 44 cases of laryngeal squamous cell carcinoma, 14 cases of hypopharyngeal squamous cell carcinoma, and 2 cases of nasal squamous cell carcinoma. pTNM staging according to AJCC 2010, Ⅲ stage 17 cases, Ⅳa stage 40 cases, and Ⅳb stage 3 cases; according to tumor differentiation degree: 13 cases of high differentiation, moderately differentiation in 31 cases, and 16 cases of low differentiated; primary tumor, positive lymph node metastasis as the experimental group, and 10 cases of adjacent tissues are taken as control (control group)...
June 5, 2017: Journal of Clinical Otorhinolaryngology, Head, and Neck Surgery
https://www.readbyqxmd.com/read/29774104/use-of-baseline-18f-fdg-pet-scan-to-identify-initial-sub-volumes-with-local-failure-after-concomitant-radio-chemotherapy-in-head-and-neck-cancer
#14
Floriane Legot, Florent Tixier, Minea Hadzic, Thomas Pinto-Leite, Christelle Gallais, Rémy Perdrisot, Xavier Dufour, Catherine Cheze-Le-Rest
Introduction: Head and neck squamous cell carcinoma (HNSCC) treated by radio-chemotherapy have a significant local recurrence rate. It has been previously suggested that 18F-FDG PET could identify the high uptake areas that can be potential targets for dose boosting. The purpose of this study was to compare the location of initial hypermetabolic regions on baseline scans with the metabolic relapse sites after radio-chemotherapy in HNSCC. Results: The initial functional tumor volume was significantly higher for patients with proven local recurrence or residual disease (23...
April 24, 2018: Oncotarget
https://www.readbyqxmd.com/read/29771690/heavily-pigmented-epithelioid-melanoma-with-loss-of-protein-kinase-a-regulatory-subunit-%C3%AE-expression
#15
Jarish N Cohen, Jessica A Spies, Fawn Ross, Angela Bohlke, Timothy H McCalmont
Heavily pigmented melanocytic neoplasms are genotypically and phenotypically diverse. Recently, a subset of this histopathologic spectrum was shown to harbor recurrent genetic alterations in the gene-encoding protein kinase A regulatory subunit-α (PRKAR1A). To date, no histopathologic descriptions of melanomas arising from this pathway have been described. We present a case of a darkly pigmented papule arising on the posterior neck of a 28-year-old man. Microscopically, the heavily pigmented compound melanocytic proliferation was centered in the dermis with permeation into the superficial subcutis...
May 16, 2018: American Journal of Dermatopathology
https://www.readbyqxmd.com/read/29771197/emerging-insights-into-wnt-%C3%AE-catenin-signaling-in-head-and-neck-cancer
#16
K A Alamoud, M A Kukuruzinska
Head and neck cancer presents primarily as head and neck squamous cell carcinoma (HNSCC), a debilitating malignancy fraught with high morbidity, poor survival rates, and limited treatment options. Mounting evidence indicates that the Wnt/β-catenin signaling pathway plays important roles in the pathobiology of HNSCC. Wnt/β-catenin signaling affects multiple cellular processes that endow cancer cells with the ability to maintain and expand immature stem-like phenotypes, proliferate, extend survival, and acquire aggressive characteristics by adopting mesenchymal traits...
June 2018: Journal of Dental Research
https://www.readbyqxmd.com/read/29771169/associations-between-skin-rash-treatment-outcome-and-single-nucleotide-polymorphisms-in-head-and-neck-cancer-patients-receiving-the-egfr-inhibitor-zalutumumab-results-from-the-dahanca-19-trial
#17
Line Brøndum, Jan Alsner, Brita Singers Sørensen, Christian Maare, Jørgen Johansen, Hanne Primdahl, Jan Folkvard Evensen, Claus Andrup Kristensen, Lisbeth Juhler Andersen, Jens Overgaard, Jesper Grau Eriksen
PURPOSE: To study the associations between development of moderate to severe skin rash, clinical outcome, and single nucleotide polymorphisms (SNPs) in candidate genes in head and neck cancer patients from the DAHANCA 19 trial receiving the EGFR-inhibitor zalutumumab concurrently with radiation treatment. MATERIAL AND METHODS: 310 patients were included from the zalutumumab-arm of the DAHANCA 19 study. Nine SNPs in the candidate genes EGFR, EGF, AREG, FCGR2A, FCGR3A, and CCND1 were successfully determined in 294 patients...
May 17, 2018: Acta Oncologica
https://www.readbyqxmd.com/read/29771094/-the-surgical-treatment-of-carotid-body-tumor-and-prevention-and-treatment-of-complications
#18
REVIEW
T Chen, Y Shen, J Zhu
Carotid body tumor is an uncommon paraganglioma tumor in the head and neck region. Carotid angiography remains the gold standard for this tumor.Surgical treatment has been universally accepted as the main treatment of CBT, resection of it is technically challenging because of the location. In order to reduce the morbidity of intraoperative and postoperative complications,we summarize the surgical treatment and the prevention and treatment of complication of this neoplasm, after retrieving the domestic and foreign literature...
May 2018: Journal of Clinical Otorhinolaryngology, Head, and Neck Surgery
https://www.readbyqxmd.com/read/29770933/risk-factors-for-central-neck-lymph-node-metastases-in-follicular-variant-vs-classic-papillary-thyroid-carcinoma
#19
Marco Raffaelli, Carmela De Crea, Luca Sessa, Guido Fadda, Celestino Pio Lombardi, Rocco Bellantone
PURPOSE: Histological variants of papillary thyroid carcinoma (PTC) have been advocated as possible risk factors for central neck nodal metastases (CNM). A lower incidence of CNM in follicular variant of papillary thyroid carcinoma (fvPTC) when compared with classic PTC (cPTC) has been observed. We aimed to compare risk factors for CNM in patients with fvPTC and cPTC. METHODS: The medical records of 1737 patients with a diagnosis of cPTC or fvPTC were reviewed. Demographic, clinical and pathological findings were prospectively registered...
May 16, 2018: Endocrine
https://www.readbyqxmd.com/read/29770536/combination-of-ifitm1-knockdown-and-radiotherapy-inhibits-the-growth-of-oral-cancer
#20
Jie Yang, Lei Li, Yan Xi, Ruimei Sun, Hu Wang, Yanxin Ren, Liufang Zhao, Xiaoli Wang, Xiaojiang Li
This research aimed to analyze the effect of IFITM1 on the radioresistance of oral neoplasm. IFITM1 emerged using multi-group heat map from GSE9716 analysis of GEO database as the relevant radioresistance gene. IFITM1 was screened by TCGA database before its expression was analyzed. IFITM1 expression was quantified by qRT-PCR and immunohistochemistry in 19 paired oral neoplasm cases. The effects of time and dose of radiation on IFITM1 expression level in CAL27 and TSCC1 cell lines was tested via qRT-PCR. Oral neoplasm cells were transfected with siRNA after radiotherapy to disturb IFITM1 expression...
May 16, 2018: Cancer Science
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