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https://www.readbyqxmd.com/read/28927073/surgical-treatment-of-parapharyngeal-space-tumors-a-report-of-29-cases
#1
Kei Ijichi, Shingo Murakami
The present study aimed to establish a strategy for parapharyngeal space (PPS) tumor surgery based on preoperative symptoms, clinical signs, imaging and histological examination. A retrospective cohort study was conducted with 29 adult patients who underwent surgery for primary PPS tumors from 2008-2015. The following data was obtained: Preoperative symptoms of the patient, histological type of the tumor, surgical approach and complications. Of the 29 patients who underwent surgery to remove a PPS tumor, 16 presented with neurogenic tumors and 13 with salivary gland tumors...
September 2017: Oncology Letters
https://www.readbyqxmd.com/read/28926744/chronic-high-protein-diet-induces-oxidative-stress-and-alters-the-salivary-gland-function-in-rats
#2
Urszula Kołodziej, Mateusz Maciejczyk, Wiesława Niklińska, Danuta Waszkiel, Małgorzata Żendzian-Piotrowska, Piotr Żukowski, Anna Zalewska
OBJECTIVE: Chronic high protein intake leads to an increase in reactive oxygen species (ROS) generation. However, there is no data on the impact of high-protein diet on the antioxidant barrier, oxidative stress and secretory function in the salivary glands of healthy individuals. DESIGN: 16 male Wistar rats were randomly divided into 2 groups (n=8): normal protein (C) and high-protein diet (HP) for 8 weeks. Salivary antioxidants: peroxidase (Px), catalase (CAT), superoxide dismutase 1 (SOD 1), uric acid (UA), total antioxidant status (TAS), total oxidant status (TOS) and the oxidative stress index (OSI), as well as protein carbonyls (PC), 4-hydroxynonenal protein adduct (4-HNE protein adduct), 8-isoprostanes (8-isoP), 8-hydroxy-2'-deoxyguanosine (8-OHdG) and protein content were determined in the salivary glands and plasma...
September 10, 2017: Archives of Oral Biology
https://www.readbyqxmd.com/read/28925330/preoperative-positron-emission-tomography-for-node-positive-head-and-neck-cutaneous-squamous-cell-carcinoma
#3
Nir Hirshoren, Elizabeth Olayos, Alan Herschtal, Aravind S Ravi Kumar, David E Gyorki
Objectives Surgery is the primary treatment modality for node-positive cutaneous squamous cell carcinoma of the head and neck with no distant disease (HNcSCC-M0). The role of preoperative positron emission tomography/computed tomography (PET/CT) scan for these patients is unclear. We compared preoperative PET/CT with final histopathology among patients undergoing lymphadenectomy and/or parotidectomy for HNcSCC-M0. Study Design Case series with chart review. Setting Single Australian center. Subjects and Methods Investigation included disease parameters and preoperative CT and PET/CT findings of 64 patients with node-positive HNcSCC without distant metastatic disease...
September 1, 2017: Otolaryngology—Head and Neck Surgery
https://www.readbyqxmd.com/read/28922328/minor-salivary-gland-transplantation-for-severe-dry-eyes
#4
Tais Hitomi Wakamatsu, Ana Estela Besteti Pires Ponce SantʼAnna, Priscila Cardoso Cristovam, Venâncio Avancini Ferreira Alves, Alda Wakamatsu, José Alvaro Pereira Gomes
Dry eye is a multifactorial disease comprising a wide spectrum of ocular surface alterations and symptoms of discomfort. In most patients with aqueous-deficient dry eye, pharmaceutical tear substitutes are used to control symptoms and prevent ocular surface damage. However, in severe dry eye conditions caused by cicatricial disorders, such as Stevens-Johnson syndrome and ocular cicatricial mucous membrane pemphigoid, noninvasive treatments are insufficient, and patients are at risk of developing complications that can lead to blindness...
September 15, 2017: Cornea
https://www.readbyqxmd.com/read/28921843/potential-proton-and-photon-dose-degradation-in-advanced-head-and-neck-cancer-patients-by-intratherapy-changes
#5
Kristin Stützer, Annika Jakobi, Anna Bandurska-Luque, Steffen Barczyk, Carolin Arnsmeyer, Steffen Löck, Christian Richter
PURPOSE: Evaluation of dose degradation by anatomic changes for head-and-neck cancer (HNC) intensity-modulated proton therapy (IMPT) relative to intensity-modulated photon therapy (IMRT) and identification of potential indicators for IMPT treatment plan adaptation. METHODS: For 31 advanced HNC datasets, IMPT and IMRT plans were recalculated on a computed tomography scan (CT) taken after about 4 weeks of therapy. Dose parameter changes were determined for the organs at risk (OARs) spinal cord, brain stem, parotid glands, brachial plexus, and mandible, for the clinical target volume (CTV) and the healthy tissue outside planning target volume (PTV)...
September 18, 2017: Journal of Applied Clinical Medical Physics
https://www.readbyqxmd.com/read/28918550/advance-care-planning-challenges-at-the-emergency-department-of-a-cancer-care-center
#6
Maria T Cruz-Carreras, Patrick Chaftari, Jayne Viets-Upchurch
INTRODUCTION: Code status discussions form an important part of advance care planning (ACP) as it enables physicians to respect the patient's wishes for end-of-life care. However, in some cases, code status discussions can be challenging causing the physician to go against the patient's wishes and the code of medical ethics. This is especially true in an emergency setting. In this paper, we will discuss three cases of advanced cancer patients, where code status discussions posed challenges to healthcare providers...
September 16, 2017: Supportive Care in Cancer: Official Journal of the Multinational Association of Supportive Care in Cancer
https://www.readbyqxmd.com/read/28917063/accuracy-of-preoperative-fine-needle-aspiration-in-diagnosis-of-malignant-parotid-tumors
#7
Hani Z Marzouki, Mohammed A Altabsh, Mohammed O Albakrei, Talal A Al-Khatib, Mazin A Merdad, Nada J Farsi
To determine the diagnostic accuracy of fine needle aspiration (FNA) for detecting malignant parotid tumors. Methods: We conducted a retrospective study of all patients diagnosed with benign or malignant parotid gland tumors in King Abdulaziz University Hospital,  Jeddah, Saudi Arabia, between January 2004 and May 2015. The records of 65 subjects were obtained. Histopathological findings and data from FNA examinations were obtained from medical records. Twenty-three subjects were excluded due to missing FNA, histopathology results or both...
October 2017: Saudi Medical Journal
https://www.readbyqxmd.com/read/28915265/the-accessory-parotid-gland-and-facial-process-of-the-parotid-gland-on-computed-tomography
#8
Dongbin Ahn, Chang Ki Yeo, Soon Yong Han, Jeong Kyu Kim
The purpose of this study was to determine the incidence of an anterior extension of the parotid gland, such as an accessory parotid gland (APG) or facial process (FP) and to evaluate its characteristics on computed tomography (CT) scans. We reviewed CT scans of 1,600 parotid glands from 800 patients. An APG on CT was defined as a soft-tissue mass of the same density as the main parotid gland, located at the anterior part of the main parotid gland, and completely separate from the main parotid gland. An FP was defined as a lobe of the parotid gland protruding anteriorly over the anterior edge of the ramus of the mandible on CT and showing continuity with the main gland...
2017: PloS One
https://www.readbyqxmd.com/read/28914590/canine-salivary-glands-analysis-of-rab-and-snare-protein-expression-and-snare-complex-formation-with-diverse-tissue-properties
#9
Hiroshi Gomi, Hiromi Osawa, Rie Uno, Tadashi Yasui, Masahiro Hosaka, Seiji Torii, Azuma Tsukise
The comparative structure and expression of salivary components and vesicular transport proteins in the canine major salivary glands were investigated. Histochemical analysis revealed that the morphology of the five major salivary glands-parotid, submandibular, polystomatic sublingual, monostomatic sublingual, and zygomatic glands-was greatly diverse. Immunoblot analysis revealed that expression levels of α-amylase and antimicrobial proteins, such as lysozyme, lactoperoxidase, and lactoferrin, differed among the different glands...
September 1, 2017: Journal of Histochemistry and Cytochemistry: Official Journal of the Histochemistry Society
https://www.readbyqxmd.com/read/28913321/mixed-tumor-in-deep-lobe-and-versatility-of-acellular-dermal-matrix
#10
Jin Hwan Byun, Jung Soo Lim, Hye Kyung Lee
Frey's syndrome and infra-auricular depressed deformities are the ones of the most common complications that can occur after total parotidectomy. We report 1 case of pleomorphic adenoma occurred in the deep lobe that obtained good results from using acellular dermal matrix (ADM) after total parotidectomy. A 24-year-old man visited the hospital with oval shape mass in right mandibular angle which of 4 cm in size was found in the deep lobe of right parotid gland from Magnetic resonance imaging scanning and a pleomorphic adenoma was suspected...
June 2017: Arch Craniofac Surg
https://www.readbyqxmd.com/read/28913292/the-effect-of-botulinum-toxin-on-an-iatrogenic-sialo-cutaneous-fistula
#11
Seung Eun Hong, Jung Woo Kwon, So Ra Kang, Bo Young Park
A sialo-cutaneous fistula is a communication between the skin and a salivary gland or duct discharging saliva. Trauma and iatrogenic complications are the most common causes of this condition. Treatments include aspiration, compression, and the administration of systemic anticholinergics; however, their effects are transient and unsatisfactory in most cases. We had a case of a patient who developed an iatrogenic sialo-cutaneous fistula after wide excision of squamous cell carcinoma in the parotid region that was not treated with conventional management, but instead completely resolved with the injection of botulinum toxin...
December 2016: Arch Craniofac Surg
https://www.readbyqxmd.com/read/28910871/-mucosa-associated-lymphoid-tissue-lymphoma-in-children-and-adolescents-a-clinicopathologic-study-of-5-cases
#12
J Hu, J L Xie, Z J Zhou, X G Zhou
Objective: To investigate the pathological features and clinical manifestations of mucosa-associated lymphoid tissue (MALT) lymphoma in children and adolescents. Methods: Five cases of MALT lymphoma in children were investigated by morphology and immunophenotyping along with clinical follow-up. Results: Five cases of MALT lymphoma occurred in the antrum, orbit, parotid gland and nasopharynx. All patients had no B symptoms and only one patient showed a local mass with ulcer. One case presented with cervical lymph node enlargement, and 4 cases showed no evidence of lymphadenopathy...
September 8, 2017: Zhonghua Bing Li Xue za Zhi Chinese Journal of Pathology
https://www.readbyqxmd.com/read/28903405/uptake-of-psma-ligands-in-normal-tissues-is-dependent-on-tumor-load-in-patients-with-prostate-cancer
#13
Florian C Gaertner, Khalil Halabi, Hojjat Ahmadzadehfar, Stefan Kürpig, Elisabeth Eppard, Charalambos Kotsikopoulos, Nikolaos Liakos, Ralph A Bundschuh, Holger Strunk, Markus Essler
Radioligand therapy (RLT) with Lu-177-labeled PSMA-ligands is a new therapy option for prostate cancer. Biodistribution in normal tissues is of interest for therapy planning. We evaluated if the biodistribution of Ga-68-PSMA-11 is influenced by tumor load. RESULTS: In patients with high tumor load, SUVmean was reduced to 61.5% in the lacrimal glands, to 56.6% in the parotid glands, to 63.7% in the submandibular glands, to 61.3% in the sublingual glands and to 55.4% in the kidneys (p < 0...
August 15, 2017: Oncotarget
https://www.readbyqxmd.com/read/28900549/myoepithelioma-of-the-parotid-gland-a-case-report-with-review-of-the-literature-and-classic-histopathology
#14
Mark Weitzel, Jason E Cohn, Harvey Spector
Myoepithelioma is a rare salivary gland neoplasm. They most commonly affect the major and minor salivary glands with the parotid gland being the most common, approximately 40%. Only 1% of all salivary gland neoplasms are myoepitheliomas. Myoepithelioma is usually a benign tumor arising from neoplastic myoepithelial or basket cells which are found between the basement membrane and the basal plasma membrane of acinar cells. They also contain multiple cellular elements. We present a case of a 73-year-old female with myoepithelioma of the parotid gland, an extremely rare neoplasm...
2017: Case Reports in Otolaryngology
https://www.readbyqxmd.com/read/28900471/metastasizing-pleomorphic-adenoma-of-the-parotid-gland
#15
Javier Soteldo, Nathasha Aranaga
Salivary gland tumours are estimated to represent approximately 3% of all head and neck tumours. About 70-80% of these neoplasms occur in the major salivary glands, with the parotid gland being the most commonly affected site. The metastasizing pleomorphic adenoma (MPA) has histological characteristics of pleomorphic adenoma, but it has the capacity to generate local recurrences and distant metastases (mainly bones, lungs, and lymph nodes). Despite the fact that some authors consider it to be a benign neoplasia, the 2015 World Health Organisation (WHO) classification of head and neck tumours considers it to be malignant...
2017: Ecancermedicalscience
https://www.readbyqxmd.com/read/28900343/two-cases-of-acinic-cell-carcinoma-of-parotid-gland-rare-papillary-cystic-variant-one-unusual-presentation-in-older-male-patient
#16
Mitul Modi, Tarang Patel, Priti Trivedi
No abstract text is available yet for this article.
April 2017: Indian Journal of Medical and Paediatric Oncology
https://www.readbyqxmd.com/read/28899693/clinical-efficacy-of-botulinum-toxin-in-salivary-duct-stenosis-a-preliminary-study-of-six-cases
#17
C Trapeau, J M Foletti, C Collet, L Guyot, C Chossegros
INTRODUCTION: Salivary duct stenosis is the second most common cause of obstructive pathology after lithiases, and it primarily affects the parotid gland. Salivary duct stenosis is treated with drug therapy and/or sialendoscopy. If unsuccessful, surgical removal of the gland is indicated, but it is associated with a high risk of facial morbidity. The aim of this study is to evaluate the clinical efficacy of an alternate treatment, botulinum toxin, in salivary duct stenosis. MATERIAL AND METHODS: In a preliminary retrospective study from January 2011 to December 2014, six patients with parotid duct stenosis received 50 IU of botulinum toxin in three injections in the parotid gland...
September 9, 2017: Journal of Stomatology, Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/28895432/intraductal-laser-fiber-tip-fracture-and-retrieval-during-sialendoscopic-laser-assisted-lithotripsy
#18
Andrew J Goates, Raymond W Kung, Chad R Tracy, Henry T Hoffman
Fragmentation of flexible laser fiber tips has been reported to occur during therapeutic bronchoscopy and urologic stone treatment. We report fragmentation of 200-µm single-use silica-based fibers during sialendoscopy-controlled Holmium:YAG laser treatment of a parotid and a submandibular stone. The technique employed to successfully retrieve the fiber tips is described in the context of identifying this potential complication from endoscopic management of sialolithiasis.
September 1, 2017: Annals of Otology, Rhinology, and Laryngology
https://www.readbyqxmd.com/read/28893053/denovo-high-grade-salivary-duct-carcinoma-a-case-report-and-review-of-literature
#19
Heena Zainab, Ameena Sultana, Pramod Jahagirdar
Salivary Duct Carcinoma (SDC) is a distinctive and clinically aggressive adenocarcinoma of salivary origin. It arises from the ductal epithelium, predominantly occurring in the major salivary glands, especially the parotid gland. Here, we report a case of an extensive salivary gland pathology involving the right side of face, possibly arising from the parotid gland in a 25-year-old male patient. On routine histopathology, the tumour mass revealed a papillary pattern of neoplastic ductal epithelial cells showing comedo-like-central necrosis...
July 2017: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28891012/visualization-of-multiple-organ-amyloid-involvement-in-systemic-amyloidosis-using-11-c-pib-pet-imaging
#20
Naoki Ezawa, Nagaaki Katoh, Kazuhiro Oguchi, Tsuneaki Yoshinaga, Masahide Yazaki, Yoshiki Sekijima
PURPOSE: To investigate the utility of Pittsburgh compound B (PiB) positron emission tomography (PET) imaging for evaluating whole-body amyloid involvement in patients with systemic amyloidosis. METHODS: Whole-body (11)C-PiB PET was performed in seven patients with systemic immunoglobulin light-chain (AL) amyloidosis, seven patients with hereditary transthyretin (ATTRm) amyloidosis, one asymptomatic TTR mutation carrier and three healthy controls. The correlations between clinical organ involvement, radiological (11)C-PiB uptake and histopathological findings were analysed for each organ...
September 10, 2017: European Journal of Nuclear Medicine and Molecular Imaging
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