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https://www.readbyqxmd.com/read/29778321/submandibular-gland-sparing-when-irradiating-neck-level-ib-in-the-treatment-of-oral-squamous-cell-carcinoma
#1
William C Jackson, Peter G Hawkins, George S Arnould, John Yao, Charles Mayo, Michelle Mierzwa
Patients with oral squamous cell carcinoma (OSqCCA) frequently require postoperative radiation (PORT), which may include contralateral level IB within the clinical target volume (CTV). The submandibular gland (SMG) is typically included within the level IB CTV; however, the SMG does not contain lymph nodes or lymphatic vessels. We hypothesized that level IB could be adequately irradiated while sparing the SMG to reduce xerostomia. Twelve patients with OSqCCA receiving PORT, which included the contralateral level IB within the planning target volume (PTV), were retrospectively reviewed and replanned using volumetric modulated arc therapy...
May 16, 2018: Medical Dosimetry: Official Journal of the American Association of Medical Dosimetrists
https://www.readbyqxmd.com/read/29768689/hsp-enriched-properties-of-extracellular-vesicles-involve-survival-of-metastatic-oral-cancer-cells
#2
Kisho Ono, Takanori Eguchi, Chiharu Sogawa, Stuart K Calderwood, Junya Futagawa, Tomonari Kasai, Masaharu Seno, Kuniaki Okamoto, Akira Sasaki, Ken-Ichi Kozaki
Cancer cells often secrete extracellular vesicles (EVs) that carry heat shock proteins (HSPs) with roles in tumor progression. Oral squamous cell carcinoma (OSCC) belongs to head and neck cancers (HNC) whose lymph-node-metastases often lead to poor prognosis. We have examined the EV proteome of OSCC cells and found abundant secretion of HSP90-enriched EVs in lymph-node-metastatic OSCC cells. Double knockdown of HSP90α and HSP90β, using small interfering RNA significantly reduced the survival of the metastatic OSCC cells, although single knockdown of each HSP90 was ineffective...
May 16, 2018: Journal of Cellular Biochemistry
https://www.readbyqxmd.com/read/29750853/depth-of-invasion-on-pathological-outcomes-in-clinical-low-stage-oral-tongue-cancer-patients
#3
Maheer M Masood, Douglas R Farquhar, Jessica P Vanleer, Samip N Patel, Trevor G Hackman
OBJECTIVES: Depth of invasion was added to the 8th edition American Joint Committee on Cancer guidelines for T staging of HPV-negative oral cavity squamous cell carcinoma. Our aim is to determine the impact of depth of invasion on pathological variables and outcomes in low-stage tongue cancer patients. We also examine the impact of tumor thickness and tumor clinical staging for comparison. SUBJECTS AND METHODS: All clinical T1/T2 N0 HPV negative tongue squamous cell carcinoma patients who received elective neck dissections at our institution between 2000 and 2015 were included...
May 11, 2018: Oral Diseases
https://www.readbyqxmd.com/read/29742291/pd-1-and-pd-l1-expression-in-hnscc-primary-cancer-and-related-lymph-node-metastasis-impact-on-clinical-outcome
#4
Sven Schneider, Lorenz Kadletz, Robert Wiebringhaus, Lukas Kenner, Edgar Selzer, Thorsten Füreder, Orsolya Rajky, Anna S Berghoff, Matthias Preusser, Gregor Heiduschka
AIMS: Expression profiles and clinical impact of programmed cell death ligand 1 (PD-L1) and programmed cell death 1 (PD-1) expressing tumour infiltrating lymphocytes (TILs) in head and neck squamous cell carcinoma (HNSCC) are not fully elucidated. This study evaluates expression patterns in primary HNSCC and related lymph node metastasis and impact on patients' clinical outcome. METHODS AND RESULTS: Immunohistochemical staining patterns of PD-L1 and PD-1 were evaluated in 129 specimens of primary HNSCC and 77 lymph node metastases...
May 9, 2018: Histopathology
https://www.readbyqxmd.com/read/29739969/detection-of-cervical-lymph-node-metastasis-from-oral-cavity-cancer-using-a-non-radiating-noninvasive-digital-infrared-thermal-imaging-system
#5
Fan Dong, Chuansibo Tao, Ji Wu, Ying Su, Yuguang Wang, Yong Wang, Chuanbin Guo, Peijun Lyu
This study aimed to evaluate the diagnostic performance of a non-radiating, noninvasive infrared (IR) thermal imaging system in the detection of cervical lymph node metastasis from oral cavity cancer. In this prospective clinical trial, a total of 90 oral cavity cancer patients suspected of having cervical lymph node metastasis underwent IR imaging of the neck prior to neck dissection. Analysis of the IR images was performed by two methods: manual qualitative analysis and automatic analysis by an entropy-gradient support vector machine (EGSVM)...
May 8, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29731551/evaluation-of-epidermal-growth-factor-receptor-expression-by-a-new-scoring-system-in-head-and-neck-squamous-cell-carcinoma-and-its-association-with-various-pathological-prognostic-factors
#6
Jyoti Verma, Vishal Dhingra, Sapan Srivastava, Vatsala Misra, Kachnar Varma, Shilpy Singh
Context: Squamous cell carcinoma is an aggressive epithelial malignancy of the upper aerodigestive tract comprising 90% of all head-and-neck squamous cell carcinoma (HNSCC). It is the sixth leading cancer worldwide, with approximately 600,000 cases reported annually. It is one of the most common cancers in India. Aims and Objective: Epidermal growth factor receptor (EGFR) being the most promising marker has potentially offered new methods to prognosticate and plays an essential role in early diagnosis and treatment apart from tumor, node and metastasis staging which has been used till now...
January 2018: Journal of Oral and Maxillofacial Pathology: JOMFP
https://www.readbyqxmd.com/read/29725854/metastasising-pleomorphic-salivary-adenoma-a-rare-case-report-of-a-massive-untreated-minor-salivary-gland-pleomorphic-adenoma-with-concurrent-ipsilateral-cervical-node-metastases
#7
Melanie Watson, Peter McAllister, Brendan Conn, Morna MacNeill, Thomas P B Handley
Salivary gland tumours constitute approximately 1-5% of all human neoplasms. Pleomorphic adenoma (PA) is the commonest benign neoplasm affecting the parotid gland most often (> 75%), followed by the submandibular gland (13%), then the palate (9%). Metastasising pleomorphic adenoma (MPA) is extremely rare. The effects can be severe and a reported 40% of MPA patients die with disease. This case represents the first known case in English literature of an untreated minor salivary gland PSA of the palate metastasising to an ipsilateral cervical node...
May 3, 2018: Head and Neck Pathology
https://www.readbyqxmd.com/read/29709331/the-importance-of-lymph-node-ratio-for-patients-with-mandibular-infiltration-of-oral-squamous-cell-carcinoma
#8
Ali-Farid Safi, Martin Kauke, Andrea Grandoch, Hans-Joachim Nickenig, Joachim Zöller, Matthias Kreppel
PURPOSE: Lymph node ratio (LNR) essentially improves assessment of prognosis and therapeutic decision making for patients with oral squamous cell carcinoma, as it considers both the number of positive lymph nodes and the number of dissected lymph nodes. Mandibular infiltration by oral squamous cell carcinoma is a vital clinicopathological feature, significantly worsens prognosis. However, to the best of our knowledge, data on the influence of LNR on prognosis for patients with OSCC and mandibular infiltration are not available...
April 5, 2018: Journal of Cranio-maxillo-facial Surgery
https://www.readbyqxmd.com/read/29709330/does-volumetric-measurement-of-cervical-lymph-nodes-serve-as-an-imaging-biomarker-for-locoregional-recurrence-of-oral-squamous-cell-carcinoma
#9
Ali-Farid Safi, Martin Kauke, Hendrik Jung, Marco Timmer, Jan Borggrefe, Thorsten Persigehl, Hans-Joachim Nickenig, Max Zinser, David Maintz, Matthias Kreppel, Joachim Zöller
In consideration of the 3-R-rule (Refine-Replace-Reduce) as a guideline for promoting ethical use of animals for surgical training, we present a novel training model for microvessel anastomosis. At hand of a rat cadaveric study, we evaluated the surgical anatomy of the common carotid artery (CCA), external jugular vein (EJV) and femoral vessels (FV) which were then used as templates for the present investigation. Anatomical dissection of 30 rat cadavers was performed. Two residents without prior microsurgical experience were included in the study and performed 5 CCA, 5 femoral artery, 5 EJV and 5 femoral vein anastomoses...
April 10, 2018: Journal of Cranio-maxillo-facial Surgery
https://www.readbyqxmd.com/read/29707840/perineural-invasion-independent-prognostic-factor-in-oral-cancer-that-warrants-adjuvant-treatment
#10
Deepa Nair, Manish Mair, Hitesh Singhvi, Aseem Mishra, Sudhir Nair, Jaiprakash Agrawal, Pankaj Chaturvedi
BACKGROUND: Controversy exists regarding the administration of adjuvant radiotherapy (RT) when perineural invasion (PNI) is the only adverse histological feature. The purpose of this study was to evaluate the impact of PNI on the survival of patients with oral cavity squamous cell carcinoma (SCC). METHODS: A retrospective study of 1524 treatment naive patients with oral cavity SCC who underwent surgery from January 2012 to March 2015 was conducted. Survival analysis was performed using Cox regression model...
April 29, 2018: Head & Neck
https://www.readbyqxmd.com/read/29706193/utility-of-pet-ct-in-detecting-nodal-metastasis-in-cn0-early-stage-oral-cavity-squamous-cell-carcinoma
#11
Han Zhang, Hadi Seikaly, Vincent L Biron, Caroline C Jeffery
BACKGROUND: Management of the clinically node-negative neck (cN0) in patients with early stage oral cavity squamous cell carcinoma (OCSCC) is challenging. Accurate imaging alternatives to elective neck dissections would help reduce surgical morbidity. While pooled studies suggest that imaging modalities have similar accuracy in predicting occult nodal disease, no study has examined the utility of PET-CT in this specific population of low-volume, clinically T1 and T2 OCSCC patients. METHODS: A retrospective review of patients in the Alberta Cancer Registry who were diagnosed with cT1 or T2N0M0 OCSCC who underwent elective unilateral or bilateral neck dissections was performed...
May 2018: Oral Oncology
https://www.readbyqxmd.com/read/29696442/the-best-of-both-worlds-a-hybrid-approach-for-optimal-pre-and-intraoperative-identification-of-sentinel-lymph-nodes
#12
G H KleinJan, E van Werkhoven, N S van den Berg, M B Karakullukcu, H J M A A Zijlmans, J A van der Hage, B A van de Wiel, T Buckle, W M C Klop, S Horenblas, R A Valdés Olmos, H G van der Poel, F W B van Leeuwen
PURPOSE: Hybrid image-guided surgery technologies such as combined radio- and fluorescence-guidance are increasingly gaining interest, but their added value still needs to be proven. In order to evaluate if and how fluorescence-guidance can help realize improvements beyond the current state-of-the-art in sentinel node (SN) biopsy procedures, use of the hybrid tracer indocyanine green (ICG)-99m Tc-nancolloid was evaluated in a large cohort of patients. PATIENTS AND METHODS: A prospective trial was conducted (n = 501 procedures) in a heterogeneous cohort of 495 patients with different malignancies (skin malignancies, oral cavity cancer, penile cancer, prostate cancer and vulva cancer)...
April 25, 2018: European Journal of Nuclear Medicine and Molecular Imaging
https://www.readbyqxmd.com/read/29672550/tumor-budding-is-an-independent-prognostic-marker-in-early-stage-oral-squamous-cell-carcinoma-with-special-reference-to-the-mode-of-invasion-and-worst-pattern-of-invasion
#13
Shota Shimizu, Akihiro Miyazaki, Tomoko Sonoda, Kazushige Koike, Kazuhiro Ogi, Jun-Ichi Kobayashi, Takeshi Kaneko, Tomohiro Igarashi, Megumi Ueda, Hironari Dehari, Akira Miyakawa, Tadashi Hasegawa, Hiroyoshi Hiratsuka
Pathologically proven regional lymph node metastasis affects the prognosis in early stage oral cancer. Therefore we investigated invasive tumor patterns predicting nodal involvement and survival in patients with clinically node-negative T1 and T2 oral squamous cell carcinoma (cT1,2N0M0 OSCC). Ninety-one cases of cT1,2N0M0 OSCC treated with transoral resection of the primary tumor were assessed based on 3 types of invasive tumor patterns on histopathologic and pancytokeratin-stained immunohistological sections: the mode of invasion, worst pattern of invasion (WPOI), and tumor budding...
2018: PloS One
https://www.readbyqxmd.com/read/29627151/warthin-s-tumour-in-oral-and-maxillofacial-regions-an-18-year-retrospective-study-of-1084-cases-in-an-eastern-chinese-population
#14
W Xu, H Lu, Y Zhu, M Ruan, C Zhang, W Yang, S Liu
There is little information in the English-language literature regarding Warthin's tumour (WT) in the eastern-Chinese population. A large retrospective study (1084 primary tumours over a period of 18years) was carried out to investigate the clinicopathological features (patients' gender, age and tumour location) of these tumours in this population. A total of 994 (91.7%) patients were male and 90 (8.3%) were female, with a male/female ratio of 11:1. The mean age was 56.48years (range 20-89years), with a peak incidence in the fifth to seventh decade (82...
April 4, 2018: International Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/29619101/frequency-of-cervical-nodal-metastasis-in-early-stage-squamous-cell-carcinoma-of-the-tongue
#15
Sadaf Qadeer Ahmed, Montasir Junaid, Sohail Awan, Maliha Kazi, Hareem Usman Khan, Sohail Halim
Introduction  Oral cavity carcinoma is an aggressive tumor, with the tongue being one of the most common subsites of involvement. Surgery is a gold standard method of dealing with advanced-stage tumors. However, for early-stage carcinomas of the tongue, the management remains controversial. Several studies have indicated that early-stage cancers have a high chance of occult cervical node metastasis, which, if left untreated, can greatly affect the prognosis. Certain parameters can help identify patients with occult cervical node metastases, and can avoid unnecessary neck dissection in node negative patients...
April 2018: International Archives of Otorhinolaryngology
https://www.readbyqxmd.com/read/29606561/prognostic-value-of-lymph-node-count-from-selective-neck-dissection-in-oral-squamous-cell-carcinoma
#16
S Lee, H J Kim, I-H Cha, W Nam
Unlike the levels of anatomical exploration, there is no consensus on the extent of lymph node dissection, or lymph node count (LNC), during selective neck dissection (SND). The aim of this study was to validate the prognostic impact of LNC on survival and to determine an optimal LNC cut-off value for SND. A retrospective investigation identified 78 patients with a diagnosis of oral squamous cell carcinoma (OSCC) who underwent SND (levels I-III or levels I-IV). LNC and clinicopathological variables were analyzed for any association with survival in Cox proportional hazards models...
March 29, 2018: International Journal of Oral and Maxillofacial Surgery
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
#17
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/29563729/operable-oral-tongue-squamous-cell-cancer-15-years-experience-at-a-tertiary-care-center-in-north-india
#18
Nootan Kumar Shukla, S V Suryanarayana Deo, Pankaj Kumar Garg, N M L Manjunath, Suman Bhaskar, V Sreenivas
The aim of the present study was to provide insight into various demographic, clinical, and management profile of Indian patients with oral tongue squamous cell cancer (OTSCC). All the OTSCC patients who had undergone surgical treatment during 1995 to 2010 at a tertiary care center in North India were considered for the present study. The details of the patients were retrieved from a prospectively maintained computerized database. A total of 124 patients were included in the present study. Mean age of the patients was 50...
March 2018: Indian Journal of Surgical Oncology
https://www.readbyqxmd.com/read/29552528/a-clinical-radiological-and-histopathological-correlation-of-neck-nodes-in-patients-undergoing-neck-dissection
#19
Nitika Mehta, Rohit Sharma, Rajneesh Madhok, Tanu Agrawal, Vinit Sharma
Objectives: Management of neck metastases in terms of diagnosis and treatment has always been a controversial issue in patients of head and neck malignancy. The main area of debate in case of diagnosis lies with the fact that whether we should rely on ultrasound, as a diagnostic modality for diagnosing micrometastases in the neck in head and neck malignancy patients? The second controversial issue is the management of N0 neck, whether to be radical or conservative? Materials and Methods: This study was conducted on 70 diagnosed patients of head and neck carcinoma who were planned for resection of the primary...
January 2018: International Journal of Applied and Basic Medical Research
https://www.readbyqxmd.com/read/29552171/optical-lymph-node-detection-system-a-practical-device-to-assist-lymph-node-location-in-neck-resection-specimens
#20
Yujia Wang, Yumei Pu, Yanhong Ni, Zhiyong Wang, Xiaofeng Huang, Guowen Sun, Qingang Hu
The status of lymph node (LN) metastasis, including the number and location of positive LNs, is a significant prognostic factor for oral squamous cell carcinoma (OSCC). Therefore, knowing the number and location of positive LNs is essential for prognosis. However, surgeons often have difficulty locating LNs. In the present study a practical device to improve the location of LNs in neck resection specimens was intoduced: the optical lymph nodes detection system (OLNDS). With the assistance of the OLNDS LNs were easier to locate and a significantly higher number of LNs were identified (P=0...
April 2018: Oncology Letters
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