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https://www.readbyqxmd.com/read/28333013/the-risk-of-radiation-induced-tumors-or-malignant-transformation-after-single-fraction-intracranial-radiosurgery-results-based-on-a-25-year-experience
#1
Bruce E Pollock, Michael J Link, Scott L Stafford, Ian F Parney, Yolanda I Garces, Robert L Foote
PURPOSE: To determine the risk of radiation-induced tumors or malignant transformation after single-fraction intracranial stereotactic radiosurgery (SRS). METHODS AND MATERIALS: We performed a retrospective review of 1837 patients who received single-fraction SRS for arteriovenous malformation or benign tumor (meningioma, vestibular schwannoma, pituitary adenoma, glomus tumor) at a single center between 1990 and 2009. Patients were excluded if they refused research authorization (n=31), had a genetic predisposition to tumor development (n=84), received prior or concurrent radiation therapy (n=79), or had less than 5 years of imaging follow-up after SRS (n=501)...
April 1, 2017: International Journal of Radiation Oncology, Biology, Physics
https://www.readbyqxmd.com/read/28329592/giant-subungual-glomus-tumor-clinical-dermoscopy-imagiologic-and-surgery-details
#2
Ana Filipa Duarte, Osvaldo Correia, Hugo Barreiros, Eckart Haneke
Glomus tumor is a rare benign vascular hamartoma derived from the modified smooth muscle cells of the glomus body. Paroxysmal pain is the leading symptom. A 78-year-old woman presented at our clinic with a 50-year history of a slow growing painful purple blue tender nodule under the right fourth finger nail. Dermoscopy and magnetic ressonance confirmed the presence of a large subungual tumor and total surgical excision was performed after partial nail plate avulsion. Histologic examination confirmed a glomus tumor...
October 15, 2016: Dermatology Online Journal
https://www.readbyqxmd.com/read/28322090/the-chemical-inducer-bth-benzothiadiazole-and-root-colonization-by-mycorrhizal-fungi-glomus-spp-trigger-resistance-against-white-rot-sclerotinia-sclerotiorum-in-sunflower
#3
Rita Bán, Gellért Baglyas, Ferenc Virányi, Balázs Barna, Katalin Posta, József Kiss, Katalin Körösi
White rot caused by Sclerotinia sclerotiorum (SS) is one of the most devastating plant diseases of sunflower. Controlling this pathogen by available tools hardly result in acceptable control. The aim of this study was to elucidate the effects of plant resistance inducers, BTH (benzothiadiazole in Bion 50 WG) and arbuscular mycorrhizal fungi (AMF) on disease development of white rot in three sunflower genotypes. Defence responses were characterized by measuring the disease severity and identifying cellular/histological reactions (e...
March 2017: Acta Biologica Hungarica
https://www.readbyqxmd.com/read/28303299/glomangiomatosis-of-the-sciatic-nerve-a-case-report-and-review-of-the-literature
#4
Rajendra Kumar, Lisa Vu, John E Madewell, Cynthia E Herzog, Justin E Bird
Glomus tumors are hamartomas, which tend to occur in sites rich in glomus bodies, such as the subungual regions of digits or the deep dermis of the palm, wrist, forearm, and foot. Very rarely, they may involve peripheral nerves. We describe a patient, who, following surgical resection of a solitary glomus tumor of the left distal sciatic nerve in his teens, had recurrence with development of multiple tumors in the course of the nerve over several years. To our knowledge, this is the only known case of glomangiomatosis involving a major peripheral nerve...
March 17, 2017: Skeletal Radiology
https://www.readbyqxmd.com/read/28298947/glomus-vagale-tumour-can-it-be-diagnosed-only-on-sonography
#5
Shuchi Bhatt, Pooja Verma, Neha Meena, Anupama Tandon, Nadeem Tanveer, Divya Bansal
Vagal paragangliomas are rare benign tumors accounting for only 3% of head and neck paragangliomas and arise from vagal ganglions, predominately the nodose ganglion in the carotid sheath. Imaging plays an important role in their diagnosis, differentiation from more common lesions presenting in the carotid space, and management. MRI is the method of choice for investigation when paragangliomas are clinically suspected. The typical salt-and-pepper appearance in T1-weighted images is well known but not specific to paragangliomas...
March 2017: Journal of Ultrasound
https://www.readbyqxmd.com/read/28294349/malignant-glomus-tumors-of-the-head-and-neck-in-children-and-adults-evaluation-and-management
#6
Nikolaus E Wolter, Eelam Adil, Alexandria L Irace, Annette Werger, Antonio R Perez-Atayde, Christopher Weldon, Darren B Orbach, Carlos Rodriguez-Galindo, Reza Rahbar
OBJECTIVES/HYPOTHESIS: To describe our current multidisciplinary approach to pediatric malignant glomus tumors of the head and neck and review the current literature. STUDY DESIGN: Retrospective chart review at a tertiary referral children's hospital and a comprehensive literature review. METHODS: A comprehensive literature search of PubMed, Embase, Web of Science, Google Scholar, and EBSCO with respect to malignant glomus tumors of the head and neck was conducted...
March 14, 2017: Laryngoscope
https://www.readbyqxmd.com/read/28284009/pituitary-carcinoma-in-a-patient-with-an-sdhb-mutation
#7
Nicola Tufton, Federico Roncaroli, Irene Hadjidemetriou, Mary N Dang, Judit Dénes, Leonardo Guasti, Maria Thom, Michael Powell, Stephanie E Baldeweg, Naomi Fersht, Márta Korbonits
We present the first case of pituitary carcinoma occurring in a patient with a succinate dehydrogenase subunit B (SDHB) mutation and history of paraganglioma. She was initially treated for a glomus tumour with external beam radiotherapy. Twenty-five years later, she was diagnosed with a non-functioning pituitary adenoma, having developed bitemporal hemianopia. Recurrence of the pituitary lesion (Ki-67 10% and p53 overexpressed) occurred 5 years after her transsphenoidal surgery, for which she underwent two further operations followed by radiotherapy...
March 10, 2017: Endocrine Pathology
https://www.readbyqxmd.com/read/28283949/impact-of-chemical-organic-and-bio-fertilizers-application-on-bell-pepper-capsicum-annuum-l-and-biological-parameters-of-myzus-persicae-sulzer-hem-aphididae
#8
M Mardani-Talaee, J Razmjou, G Nouri-Ganbalani, M Hassanpour, B Naseri
Myzus persicae (Sulzer) is a polyphagous aphid that causes chlorosis, necrosis, stunting, and reduce growth rate of the host plants. In this research, the effects of Zinc sulfate and vermicompost (30%), Bacillus subtilis, Pseudomonas fluorescens, Glomus intraradices, G. intraradices × B. subtilis, and G. intraradices × P. fluorescens compared to control was investigated on the growth characters of Capsicum annuum L. and biological parameters of M. persicae. Different fertilizers caused a significant effect on growth characters of C...
March 11, 2017: Neotropical Entomology
https://www.readbyqxmd.com/read/28272676/intra-articular-glomus-tumor-a-rare-presentation
#9
Ritesh Sachdev, Ishani Mohapatra, Shalini Goel, Smeeta Gajendra
No abstract text is available yet for this article.
February 4, 2017: Türk Patoloji Dergisi
https://www.readbyqxmd.com/read/28258621/eus-diagnosis-of-subepithelial-lesions
#10
REVIEW
Mitsuhiro Kida, Yusuke Kawaguchi, Eiji Miyata, Rikiya Hasegawa, Toru Kaneko, Hiroshi Yamauchi, Shuko Koizumi, Kosuke Okuwaki, Shiro Miyazawa, Tomohisa Iwai, Hidehiko Kikuchi, Maya Watanabe, Hiroshi Imaizumi, Wasaburo Koizumi
Using EUS, it is practicable to diagnose Subepithelial lesions (SEL) with originating layer, echo level, and internal echo pattern etc. Lipoma, lymphangioma, and cyst have characteristic features, therefore they have no need for EUS-FNA. Ectopic pancreases and glomus tumors, which are originated from 3(rd) and 4(th) layer, are frequently seen in the antrum. Although ectopic pancreases located in the fundus or body are large and originated from 3(rd) and 4(th) layer (thickening of 4(th) layer). Each Subepithelial lesions has each characteristic finding...
March 3, 2017: Digestive Endoscopy: Official Journal of the Japan Gastroenterological Endoscopy Society
https://www.readbyqxmd.com/read/28258426/how-interacting-fungal-species-and-mineral-nitrogen-inputs-affect-transfer-of-nitrogen-from-litter-via-arbuscular-mycorrhizal-mycelium
#11
Yuejun He, J Hans C Cornelissen, Zhangcheng Zhong, Ming Dong, Changhong Jiang
In the karst landscape, widespread in the world including southern China, soil nutrient supply is strongly constrained. In such environments, arbuscular mycorrhizal (AM) fungi may facilitate plant nutrient uptake. However, the possible role of different AM fungal species, and their interactions, especially in transferring nitrogen (N) from litter to plant, is poorly understood. We conducted two microcosm experiments to investigate the role that two karst soil AM fungi, Glomus etunicatum and Glomus mosseae, play in the transfer of N from decomposing litter to the host plant and to determine how N availability influences these processes...
March 3, 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/28252583/-the-experience-with-the-surgical-treatment-of-glomus-tumours
#12
V M Svistushkin, E A Shevchik, I T Muhamedov, D M Pshonkina
INTRODUCTION: glomus tumours of the temporal bones rank second after neurinomas of the VII-th pair of cranial nerves among the pathological conditions that are likely to cause hearing mpairment. Being extensively vascularized locally invasive neoplasms, glomus tumours constitute a serious challenge for the surgeon because of their localization in the vicinity of the vitally important vascular and neural structures of the lateral skull base. AIM: To characterize some peculiar features of the surgical interventions and postoperative management of the patients presenting with different types of glomus tumours...
2017: Vestnik Otorinolaringologii
https://www.readbyqxmd.com/read/28245992/overt-and-subclinical-baroreflex-dysfunction-following-bilateral-carotid-body-tumor-resection-pathophysiology-diagnosis-and-implications-for-management
#13
REVIEW
Michael G Z Ghali, Visish M Srinivasan, Ehab Hanna, Franco DeMonte
Carotid body paragangliomas are rare, usually benign, tumors arising from glomus cells of the carotid body. Bilateral involvement is present in ∼5% of sporadic cases and up to one-third of familial cases. In the majority of patients undergoing bilateral resection of carotid body tumors (CBTs), a condition known as baroreflex failure syndrome (BFS) develops following resection of the second tumor characterized by headache, anxiety, emotional lability, orthostatic lightheadedness, hypertension, and tachycardia...
February 25, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28220958/contrast-enhanced-harmonic-endoscopic-ultrasonography-for-differential-diagnosis-of-submucosal-tumors-of-the-upper-gastrointestinal-tract
#14
Ken Kamata, Mamoru Takenaka, Masayuki Kitano, Shunsuke Omoto, Takeshi Miyata, Kosuke Minaga, Kentaro Yamao, Hajime Imai, Toshiharu Sakurai, Tomohiro Watanabe, Naoshi Nishida, Takaaki Chikugo, Yasutaka Chiba, Haruhiko Imamoto, Takushi Yasuda, Andrea Lisotti, Pietro Fusaroli, Masatoshi Kudo
BACKGROUND AND AIMS: To evaluate contrast-enhanced harmonic endoscopic ultrasonography (CH-EUS) for the differential diagnosis of submucosal tumors (SMT) of the upper gastrointestinal tract. METHODS: Between June 2008 and May 2015, 157 consecutive patients with submucosal lesions of the upper gastrointestinal tract were evaluated by CH-EUS. This was a single-center retrospective analysis of prospectively collected data in a registry. The data from 73 patients who later underwent surgical resection were analyzed in this study...
February 21, 2017: Journal of Gastroenterology and Hepatology
https://www.readbyqxmd.com/read/28203514/glomangiosarcoma-arising-from-a-prior-biopsy-site
#15
Amy M Maselli, Amani V Jambhekar, John G Hunter
Glomangiosarcoma represents a rare malignant variant of the benign glomus tumor that typically presents as a tender, slowly growing nodule with a predilection for the lower extremities. Unlike their benign counterparts, glomangiosarcomas may display aggressive characteristics such as large size, local invasion, and a tendency to recur after excision. Although wide local excision remains the treatment of choice, rare cases of systemic metastasis have been previously reported. We present a case of glomangiosarcoma arising at a prior biopsy site after excision of an unknown soft tissue lesion...
January 2017: Plastic and Reconstructive Surgery. Global Open
https://www.readbyqxmd.com/read/28203512/unusual-volar-pulp-location-of-glomus-tumor
#16
Ian A Rosner, Anne E Argenta, Kia M Washington
Glomus tumors are benign, painful growths originating from glomus bodies and comprise just 1% of tumors arising in the hand, with fewer than 10% in the volar pulp of digits. Hallmark symptoms of glomus tumors include hypersensitivity to cold, heightened pinprick sensitivity, and paroxysmal pain. We report a 72-year-old, right-hand dominant man who presented with pain in the left middle finger, localized to the tip. The fingertip was incredibly sensitive to touch, and his pain increased at night. He reported no recollection of trauma...
January 2017: Plastic and Reconstructive Surgery. Global Open
https://www.readbyqxmd.com/read/28192382/endoscopic-management-of-middle-ear-paragangliomas-a-case-series
#17
Daniel E Killeen, Cameron C Wick, Jacob B Hunter, Alejandro Rivas, George B Wanna, João Flávio Nogueira, Joe Walter Kutz, Brandon Isaacson
OBJECTIVE: To investigate the efficacy and safety of endoscopic middle ear paraganglioma (glomus tympanicum) resection. STUDY DESIGN: Case series with chart review. SETTING: Multi-institutional tertiary university medical centers. PATIENTS: Adult patients with middle ear paragangliomas treated via a transcanal endoscopic approach from 1/2012 to 11/2015. INTERVENTION: All tumors were initially approached via a transcanal endoscopic technique...
March 2017: Otology & Neurotology
https://www.readbyqxmd.com/read/28180050/utility-of-an-ultrasonic-aspirator-in-transcanal-endoscopic-resection-of-temporal-bone-paraganglioma
#18
Brendan P O'Connell, Jacob B Hunter, Matthew L Carlson, Brandon Isaacson, Alejandro Rivas, George B Wanna
The objective of this study was to evaluate the role of removing middle ear paragangliomas using an ultrasonic aspirator (UA) through a transcanal, exclusively endoscopic approach. Three consecutive patients undergoing transcanal endoscopic resection of middle ear paragangliomas using an UA were retrospectively studied. The primary outcome measure was achieving gross total tumor resection. Secondary outcomes included postoperative hearing and early convalescence. Two glomus tympanicum tumors and one small glomus jugulare were included, and complete tumor resection was achieved endoscopically in all cases...
February 2017: Journal of Neurological Surgery. Part B, Skull Base
https://www.readbyqxmd.com/read/28176855/arbuscular-mycorrhiza-enhance-the-rate-of-litter-decomposition-while-inhibiting-soil-microbial-community-development
#19
Heng Gui, Kevin Hyde, Jianchu Xu, Peter Mortimer
Although there is a growing amount of evidence that arbuscular mycorrhizal fungi (AMF) influence the decomposition process, the extent of their involvement remains unclear. Therefore, given this knowledge gap, our aim was to test how AMF influence the soil decomposer communities. Dual compartment microcosms, where AMF (Glomus mosseae) were either allowed access (AM+) to or excluded (AM-) from forest soil compartments containing litterbags (leaf litter from Calophyllum polyanthum) were used. The experiment ran for six months, with destructive harvests at 0, 90, 120, 150, and 180 days...
February 8, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28165756/enhanced-phytoremediation-of-soils-contaminated-with-pahs-by-arbuscular-mycorrhiza-and-rhizobium
#20
Cheng-Gang Ren, Cun-Cui Kong, Bian Bian, Wei Liu, Yan Li, Yong-Ming Luo, Xie Zhi-Hong
Greenhouse experiment was conducted to evaluate the potential effectiveness of a legume (Sesbania cannabina), arbuscular mycorrhizal fungi (AMF) (Glomus mosseae) and rhizobia (Ensifer sp.) symbiosis for remediation of PAHs in spiked soil. AMF and rhizobia had a beneficial impact on each other in the triple symbiosis. AMF and/or rhizobia significantly increased plant biomass and PAHs accumulation in plants. The highest PAHs dissipation was observed in plant + AMF + rhizobia treated soil, in which >97 and 85-87% of phenanthrene and pyrene, respectively, had been degraded, whereas 81-85% and 72-75% had been degraded in plant-treated soil...
February 6, 2017: International Journal of Phytoremediation
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