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head and neck pathology

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https://www.readbyqxmd.com/read/29656422/role-of-lactoferrin-and-lactoferrin-derived-peptides-in-oral-and-maxillofacial-diseases
#1
REVIEW
Kabilan Velliyagounder, Dania Bahdila, Siddhi Pawar, Daniel H Fine
The oral cavity harbors different taxonomic groups, the evolutionary co-existence of which develops the oral ecosystem. These resident microorganisms can alter the balance between the physiologic and pathologic conditions that affect the host, both locally and systemically. This highly sophisticated nature of the oral cavity poses a significant therapeutic challenge. Numerous human and animal studies have been conducted to potentiate the efficacy and competence of current treatments of pathologic conditions as well as to develop novel therapeutic modalities...
April 14, 2018: Oral Diseases
https://www.readbyqxmd.com/read/29649431/diagnosis-and-management-of-children-with-mycobacterium-abscessus-infections-in-the-head-and-neck
#2
Justine Moe, Roy Rajan, Shelley Caltharp, Shelly Abramowicz
PURPOSE: Controversy exists regarding the most appropriate treatment strategy for children with nontuberculous mycobacterial (NTM) cervical lymphadenitis. Mycobacterium abscessus (MAB) is an uncommon cause of NTM cervical lymphadenitis. The purpose of the present study was to evaluate diagnosis, management, and treatment outcomes in children with MAB-associated cervical lymphadenitis resulting from a pulpotomy. MATERIALS AND METHODS: This was a retrospective chart review of children with NTM lymphadenitis of the head and neck caused by MAB treated at Children's Healthcare of Atlanta hospitals (Atlanta, GA)...
March 22, 2018: Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/29644900/discordance-in-preoperative-and-postoperative-histopathology-of-sinonasal-tumors
#3
Ashwin Ganti, Bobby A Tajudeen, Max A Plitt, Isolina Rossi, Paolo Gattuso, Pete S Batra
Background Head and neck surgical pathology has been shown to be prone to histopathologic diagnostic error that can adversely impact patient care due to inappropriate management. Sinonasal tumors, in particular, present a diagnostic challenge given the relative rarity and diversity in histology and thus may have higher rates of discordant histology. Objective The purpose of this study is to determine the rate of discrepancy between preoperative and postoperative diagnoses of sinonasal tumors. Methods Retrospective chart review was performed on 52 patients treated for sinonasal tumors between January 2013 and December 2016...
March 2018: American Journal of Rhinology & Allergy
https://www.readbyqxmd.com/read/29620546/comparison-of-cochlear-duct-length-between-the-saudi-and-non-saudi-populations
#4
Alaa Alanazi, Farid Alzhrani
BACKGROUND: There are no data on cochlear duct lengths (CDL) among Middle East populations. OBJECTIVES: The main aims of this study were to estimate the average CDL in the Saudi population and to compare it with the reported CDL in other regions/ethnic groups outside the Middle East. DESIGN: Retrospective study. SETTING: Tertiary otolaryngology head and neck surgery center. SUBJECTS AND METHODS: Temporal bone CT scans were reviewed to determine CDL...
March 2018: Annals of Saudi Medicine
https://www.readbyqxmd.com/read/29610456/potential-of-quantitative-sept9-and-shox2-methylation-in-plasmatic-circulating-cell-free-dna-as-auxiliary-staging-parameter-in-colorectal-cancer-a-prospective-observational-cohort-study
#5
Julia Bergheim, Alexander Semaan, Heidrun Gevensleben, Susanne Groening, Andreas Knoblich, Jörn Dietrich, Julia Weber, Jörg C Kalff, Friedrich Bootz, Glen Kristiansen, Dimo Dietrich
BACKGROUND: Septin 9 (SEPT9) and short stature homeobox 2 (SHOX2) methylation in circulating cell-free DNA (ccfDNA) are powerful biomarkers for colorectal cancer (CRC) screening, as well as head and neck squamous cell carcinoma staging and monitoring. In the present study, we investigated SEPT9 and SHOX2 ccfDNA methylation as auxiliary pre and post-therapeutic staging parameters in CRC patients. METHODS: ccfDNA methylation was quantified in 184 prospectively enrolled patients prior to and 3-10 days after surgery, and biomarker levels were associated with clinico-pathological parameters...
April 3, 2018: British Journal of Cancer
https://www.readbyqxmd.com/read/29607987/-establishing-individualized-medicine-for-intractable-cancer-based-on-clinical-molecular-pathogenesis
#6
Hirofumi Jono
 Although cancer treatment has dramatically improved with the development of molecular-targeted agents over the past decade, identifying eligible patients and predicting the therapeutic effects remain a major challenge. Because intratumoral heterogeneity represents genetic and molecular differences affecting patients' responses to these therapeutic agents, establishing individualized medicine based on precise molecular pathological analysis of tumors is urgently required. This review focuses on the pathogenesis of oral squamous cell carcinoma (OSCC), a common head and neck neoplasm, and introduces our approaches toward developing novel anticancer therapies particularly based on clinical molecular pathogenesis...
2018: Yakugaku Zasshi: Journal of the Pharmaceutical Society of Japan
https://www.readbyqxmd.com/read/29603711/management-of-a-severe-cervicofacial-odontogenic-infection
#7
Ana Km Tormes, Manoela M De Bortoli, Rui M Júnior, Emanuel Ss Andrade
INTRODUCTION: Odontogenic infections originate from a tooth or from its supporting structures, generally secondary to a pulp necrosis, periodontal disease, pericoronitis, apical lesions, or complications of dental procedures, which can be restricted to the alveolus or can reach the jaws and face through maxillofacial spaces. These are the most common conditions which affect the head and neck regions. AIM: The aim of this study is to report a severe case of a cervicofacial odontogenic infection while discussing the most relevant aspects...
March 1, 2018: Journal of Contemporary Dental Practice
https://www.readbyqxmd.com/read/29599009/incremental-prognostic-value-of-apparent-diffusion-coefficient-histogram-analysis-in-head-and-neck-squamous-cell-carcinoma
#8
Xiaoxia Li, Ying Yuan, Jiliang Ren, Yiqian Shi, Xiaofeng Tao
RATIONALE AND OBJECTIVES: We aimed to investigate the incremental prognostic value of apparent diffusion coefficient (ADC) histogram analysis in patients with head and neck squamous cell carcinoma (HNSCC) and integrate it into a multivariate prognostic model. MATERIALS AND METHODS: A retrospective review of magnetic resonance imaging findings was conducted in patients with pathologically confirmed HNSCC between June 2012 and December 2015. For each tumor, six histogram parameters were derived: the 10th, 50th, and 90th percentiles of ADC (ADC10 , ADC50 , and ADC90 ); mean ADC values (ADCmean ); kurtosis; and skewness...
March 26, 2018: Academic Radiology
https://www.readbyqxmd.com/read/29595677/the-value-of-scintigraphy-computed-tomography-magnetic-resonance-imaging-and-single-photon-emission-computed-tomography-computed-tomography-for-the-diagnosis-of-ectopic-thyroid-in-the-head-and-neck-a-strobe-compliant-retrospective-study
#9
Feng Xu, Ziyang Shao, Gongxing Yang, Aichun Gu, Mengda Jiang, Yifan Pan, Yubo Ma
Because of its rarity, the exact imaging features of ectopic thyroid are poorly known.To analyze the value of scintigraphy, computed tomography (CT), magnetic resonance imaging (MRI), and single-photon emission computed tomography (SPECT)/CT in the diagnosis of ectopic thyroid in the head and neck.First, we retrospectively analyzed the scintigraphy, CT, MRI, and SPECT/CT images from 25 masses (22 patients) suspected of head and neck ectopic thyroid from 2006 to 2017 at the Shanghai Ninth People's Hospital. Each mass was imaged by nuclear imaging (scintigraphy with or without SPECT/CT) and radiological exam (CT and/or MRI)...
March 2018: Medicine (Baltimore)
https://www.readbyqxmd.com/read/29595323/ct-and-mr-imaging-characteristics-of-histological-subtypes-of-head-and-neck-ossifying-fibroma
#10
Masaya Kawaguchi, Hiroki Kato, Tatsuhiko Miyazaki, Keizo Kato, Daijiro Hatakeyama, Keisuke Mizuta, Mitsuhiro Aoki, Masayuki Matsuo
OBJECTIVES: The current study aimed to assess CT and MR imaging characteristics of histological subtypes of head and neck ossifying fibroma (OF). METHODS: Twelve patients with histopathologically-proven head and neck OF were included in this study. Lesions were pathologically classified into three histological subtypes: 8 cement-OFs (COFs), 3 juvenile psammomatoid OFs (JPOFs), and 1 juvenile trabecular OF (JTOF). All patients underwent CT examination while 7 also underwent MR imaging...
March 29, 2018: Dento Maxillo Facial Radiology
https://www.readbyqxmd.com/read/29594214/sdf-1-cxcr4-expression-in-head-and-neck-cancer-and-outcome-after-postoperative-radiochemotherapy
#11
Chiara De-Colle, David Mönnich, Stefan Welz, Simon Boeke, Bence Sipos, Falko Fend, Paul-Stefan Mauz, Inge Tinhofer, Volker Budach, Jehad Abu Jawad, Martin Stuschke, Panagiotis Balermpas, Claus Rödel, Anca-Ligia Grosu, Amir Abdollahi, Jürgen Debus, Christine Bayer, Claus Belka, Steffi Pigorsch, Stephanie E Combs, Fabian Lohaus, Annett Linge, Mechthild Krause, Michael Baumann, Daniel Zips, Apostolos Menegakis
Introduction: Outcome after postoperative radiochemotherapy (RT-CT) for patients with advanced head and neck squamous cell carcinomas (HNSCC) remains unsatisfactory, especially among those with HPV negative tumours. Therefore, new biomarkers are needed to further define subgroups for individualised therapeutic approaches. Preclinical and first clinical observations showed that the chemokine receptor CXCR4 and its ligand SDF-1 (CXCL12) play an important role in tumour cell proliferation, survival, cancer progression, metastasis and treatment resistance...
August 2017: Clinical and Translational Radiation Oncology
https://www.readbyqxmd.com/read/29594083/large-parotid-gland-lipoblastoma-in-a-teenager
#12
Danny Jandali, Ashley Heilingoetter, Ritu Ghai, Jill Jeffe, Samer Al-Khudari
Background: Lipoblastomas are rare benign neoplasms that arise from fetal white fat cells. They are typically found in children under the age of 3 and have been reported in the mediastinum, extremities, and infrequently in the head and neck. We present a rare case of a lipoblastoma arising from the parotid gland and the first known report of a parotid lipoblastoma in a teenager. Case presentation: A 15-year-old male presented with a painless, slowly enlarging parotid mass and left facial swelling...
2018: Frontiers in Pediatrics
https://www.readbyqxmd.com/read/29594078/malignant-melanoma-of-the-external-auditory-canal-a-rare-entity
#13
Yookarin Khonglah, Nabanita Das, Vandana Raphael, Ankit-Kumar Jitani, N Brian Shunyu
Introduction: Although malignant melanomas (MM) are common in the head and neck region; primary malignant melanoma of the external auditory canal (EAC) is rare. Case Report: We present the case of a 50-year-old symptomatic man with a malignant melanoma of the external auditory canal, which clinically masqueraded as a haemangioma. The patient subsequently developed extensive loco-regional metastasis, requiring extensive surgery. We describe the clinical presentation, differential diagnosis, both clinical and pathological in terms of other pigmented lesions in the external auditory canal, detailed histopathology, and literature review...
March 2018: Iranian Journal of Otorhinolaryngology
https://www.readbyqxmd.com/read/29587781/ossifying-fibromyxoid-tumor-of-soft-parts-in-head-and-neck-case-report-and-literature-review
#14
Ignacio A Velasco, Ran Zhang, Tiejun Li, Diancan Wang
BACKGROUND: Ossifying fibromyxoid tumor of soft parts (OFMT), is a rare but morphologically distinctive neoplasm of uncertain histogenesis that most frequently affects middle-aged male adults. Clinically, it usually presents as a slowly enlarging, small, circumscribed mass, which in most cases is painless. OFMT is most frequently found within the subcutaneous tissues of extremities or trunk, and rarely in the oral/head and neck region. We present an unusual case of this tumor in the submandibular region, and, based on the current medical literatures this is probably the first case described in this anatomical location...
March 27, 2018: Diagnostic Pathology
https://www.readbyqxmd.com/read/29582174/arterial-spin-labeling-perfusion-weighted-mr-imaging-correlation-of-tumor-blood-flow-with-pathological-degree-of-tumor-differentiation-clinical-stage-and-nodal-metastasis-of-head-and-neck-squamous-cell-carcinoma
#15
Ahmed Abdel Khalek Abdel Razek, Nadia Nada
PURPOSE: The prognostic parameters of head and neck squamous cell carcinoma (HNSCC) include the pathological degree of tumor differentiation, clinical staging, and presence of metastatic cervical lymph nodes. To correlate tumor blood flow (TBF) acquired from arterial spin labeling (ASL) perfusion-weighted MR imaging with pathological degree of tumor differentiation, clinical stage, and nodal metastasis of HNSCC. MATERIALS AND METHODS: Retrospective analysis of 43 patients (31 male, 12 female with a mean age of 65 years) with HNSCC that underwent ASL of head and neck and TBF of HNSCC was calculated...
March 27, 2018: European Archives of Oto-rhino-laryngology
https://www.readbyqxmd.com/read/29575685/high-sensitivity-and-negative-predictive-value-of-sentinel-lymph-node-biopsy-in-a-retrospective-early-stage-oral-cavity-cancer-cohort-in-the-northern-netherlands
#16
K Boeve, K P Schepman, E Schuuring, J L N Roodenburg, G B Halmos, B A C van Dijk, R A C Boorsma, J G A M de Visscher, A H Brouwers, B van der Vegt, M J H Witjes
OBJECTIVES: In cT1-2N0 oral squamous cell carcinoma (OSCC) occult metastases are detected in 23 - 37% of cases. Sentinel lymph node biopsy (SLNB) was introduced in head and neck cancer as a minimally invasive alternative for an elective neck dissection in neck staging. Meta-analyses of SLNB accuracy shows heterogeneity in the existing studies for reference standards, imaging techniques and pathological examination. The aim of this study was to assess the sensitivity and negative predictive value (NPV) of the SLNB in detecting occult metastases in cT1-2N0 OSCC in a well-defined cohort...
March 25, 2018: Clinical Otolaryngology
https://www.readbyqxmd.com/read/29574547/hip-capsular-thickness-correlates-with-range-of-motion-limitations-in-femoroacetabular-impingement
#17
Kailai Zhang, Darren de Sa, Hang Yu, Hema Nalini Choudur, Nicole Simunovic, Olufemi Rolland Ayeni
PURPOSE: Femoroacetabular impingement (FAI) is a clinical entity of the hip causing derangements in range of motion, pain, gait, and function. Computer-assisted modeling and clinical studies suggest that patients with FAI have increased capsular thickness compared to those without.A retrospective chart review was performed to assess relationships between capsular thickness, hip range of motion, and demographic factors in patients with FAI. METHODS: Local Research Ethics Board approval was obtained to extract electronic medical records for 188 patients at a single institution who had undergone hip arthroscopy...
March 24, 2018: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
https://www.readbyqxmd.com/read/29569374/overexpression-of-wdr5-associates-with-aggressive-clinicopathological-features-and-unfavorable-prognosis-in-head-neck-squamous-cell-carcinoma
#18
Yaping Wu, Pengfei Diao, Zhongwu Li, Wei Zhang, Dongmiao Wang, Yanling Wang, Jie Cheng
BACKGROUND: WD repeat domain 5 (WDR5), a core member of Mixed lineage leukemia (MLL) and SET1 histone H3 lysine 4 (H3K4) methyltransferase complexes, is involved in multiple biological and pathological processes. Its deregulation in cancer and pro-tumorigenic roles have been increasingly appreciated. However, the expression pattern of WDR5 and its biological functions in head neck squamous cell carcinoma (HNSCC) have not been well established. METHODS: The expression of WDR5 mRNA in HNSCC was determined by data mining and interrogation using publicly available databases...
March 22, 2018: Journal of Oral Pathology & Medicine
https://www.readbyqxmd.com/read/29560516/combinational-chromosomal-aneuploidies-and-hpv-status-for-prediction-of-head-and-neck-squamous-cell-carcinoma-prognosis-in-biopsies-and-cytological-preparations
#19
Silke Wemmert, Maximilian Linxweiler, Cornelia Lerner, Florian Bochen, Philipp Kulas, Johannes Linxweiler, Sigrun Smola, Steffi Urbschat, Stefan Wagenpfeil, Bernhard Schick
PURPOSE: Head and neck squamous cell carcinoma (HNSCC) is one of the most common human cancer types with a very poor prognosis despite improvements in therapeutic modalities. The major known risk factors are tobacco use and alcohol consumption or infection with high-risk human papilloma viruses (HPV), especially in oropharyngeal tumors. The current management based on the assessment of a variety of clinical and pathological parameters does not sufficiently predict outcome. METHODS: Chromosomal alterations detected in HNSCCs were characterized by metaphase comparative genomic hybridization (CGH) and correlated with clinical parameters as well as survival time...
March 20, 2018: Journal of Cancer Research and Clinical Oncology
https://www.readbyqxmd.com/read/29557536/neuroendocrine-carcinomas-of-the-larynx-and-head-and-neck-challenges-in-classification-and-grading
#20
Bayardo Perez-Ordoñez
Primary neuroendocrine carcinomas (NECs) of the larynx and head and neck are an uncommon and heterogeneous group of neoplasms categorized by the 2017 WHO Classification of Head and Neck Tumors as: (a) well-differentiated (WD-NEC), (b) moderately-differentiated (MD-NEC), and (c) poorly-differentiated (PD-NEC) with small cell and large cell types. The classification incorporates elements of differentiation and grading and closely correlates to the 5-year disease specific survival of 100, 52.8, 19.3 and 15.3% for each diagnostic category...
March 2018: Head and Neck Pathology
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