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https://www.readbyqxmd.com/read/29777294/impact-of-residual-frontal-recess-cells-on-frontal-sinusitis-after-endoscopic-sinus-surgery
#1
Tsuguhisa Nakayama, Daiya Asaka, Akihito Kuboki, Tetsushi Okushi, Hiromi Kojima
PURPOSE: Endoscopic sinus surgery (ESS) is a well-established treatment for chronic rhinosinusitis (CRS). However, ESS for frontal sinusitis remains complicated and challenging. The aim of this study was to identify the relationship between residual frontal recess cells and primary ESS failure in the frontal sinus. METHODS: We prospectively collected information on 214 sides of 129 patients with CRS who underwent standard ESS from June 2010 to May 2011. To identify risk factors, we retrospectively analyzed clinical data and computed tomography (CT) images before and 3 months after surgery...
May 18, 2018: European Archives of Oto-rhino-laryngology
https://www.readbyqxmd.com/read/29777006/in-vivo-characterization-and-quantification-of-neurofibrillary-tau-pet-radioligand-18-f-mk-6240-in-humans-from-alzheimer-s-disease-dementia-to-young-controls
#2
Tobey J Betthauser, Karly A Cody, Matthew D Zammit, Dhanabalan Murali, Alexander K Converse, Todd E Barnhart, Charles K Stone, Howard A Rowley, Sterling C Johnson, Bradley T Christian
Tau positron emission tomography (PET) imaging has potential for elucidating changes in the deposition of neuropathological tau aggregates that are occurring during the progression of Alzheimer's disease (AD). This work investigates in vivo kinetics, quantification strategies and imaging characteristics of a novel tau PET radioligand [18 F]MK-6240 in humans. Methods: Fifty-one individuals ranging from cognitively normal young controls to persons with dementia underwent T1-weighted magnetic resonance imaging (MRI), and [11 C]PiB and [18 F]MK-6240 PET imaging...
May 18, 2018: Journal of Nuclear Medicine: Official Publication, Society of Nuclear Medicine
https://www.readbyqxmd.com/read/29775558/reconstructing-a-traumatic-empty-orbit-principles-difficulties-of-treatment-and-literature-review
#3
REVIEW
Panagiotis Stathopoulos, Philip Ameerally
PURPOSE: This report describes the case of a serious orbital injury in which the globe was completely displaced into the nasal cavity and the orbit was clinically empty. The authors discuss the difficulties encountered in the management of this patient and their principles in the reconstruction of a complex defect. MATERIALS AND METHODS: In this rare case of severe injury, the authors used a combined transconjunctival and ethmoidal approach to retrieve the displaced globe from the nasal cavity...
April 21, 2018: Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/29775014/-the-application-of-3d-reconstruction-in-investigating-the-frontal-sinus-drainage-pathway-based-on-computer-tomography-data
#4
Y Liu, X Q Ma, X H Sun, S Dai, J F Zhang, H B Li, X Ma, J Y Wang, Q Dou, J Y Tian, J P Jia
Objective: The aim of this study is to explore the value of 3D reconstruction technology based on computer tomography data in understanding the frontal sinus drainage pathway. Method: Three-dimensional reconstruction of DICOM data from 100 cases of sinus CT was performed by using Mimics 19.0 software. The 3D models were used to study types, the relative locations of frontal sinus and recess cells as well as the influence of the frontal sinus drainage pathway. Result: The 3D model of frontal sinus, frontal recess cells and frontal sinus drainage pathway were reconstructed successfully...
February 2018: Journal of Clinical Otorhinolaryngology, Head, and Neck Surgery
https://www.readbyqxmd.com/read/29771086/-design-of-cross-sectional-anatomical-model-focused-on-drainage-pathways-of-paranasal-sinuses
#5
Y Zha, W Lv, Y L Gao, Z Z Zhu, Z Q Gao
Objective: To design and produce cross-sectional anatomical models of paranasal sinuses for the purpose of demonstrating drainage pathways of each nasal sinus for the young doctors. Method: We reconstructed the three-dimensional model of sinuses area based on CT scan data, and divided it into 5 thick cross-sectional anatomy models by 4 coronal plane,which cross middle points of agger nasi cell, ethmoid bulla, posterior ethmoid sinuses and sphenoid sinus respectively. Then a 3D printerwas used to make anatomical cross-sectional anatomical models...
May 2018: Journal of Clinical Otorhinolaryngology, Head, and Neck Surgery
https://www.readbyqxmd.com/read/29771036/-3d-computed-tomographic-study-of-concha-bullosa-drainage-pathway
#6
W H Zhang, Y L Zhao, X D Li
Objective: The aim of this study is to study the related structures with concha bullosa drainage passway in inpatients with concha bullosa disease. Method: A total of 90 patients with peritubular middle turbinate (144 sides) were examined by 16-slice spiral CT. The distribution of the middle turbinate and the distribution of the drainage channel were analyzed by three-dimensional reconstruction technique and image workstation software. Result: The distribution of the morphology and drainage channel of 144 concha bullosa have statistically significant ( P <0...
May 20, 2017: Journal of Clinical Otorhinolaryngology, Head, and Neck Surgery
https://www.readbyqxmd.com/read/29770233/metastasis-to-paranasal-sinuses-from-carcinoma-of-prostate-report-of-a-case-and-review-of-the-literature
#7
Elio Bittar Barbosa, Evaldo César Macau Furtado Ferreira, Fernanda Viviane Mariano, Albina Messias de Almeida Milani Altemani, Emerson Taro Inoue Sakuma, Eulalia Sakano
Metastasis from distant primary tumors is extremely rare in the paranasal sinuses with few hundred cases in the literature. Metastatic carcinoma of the prostate is even rarer, despite being one of the most common tumors, with only 24 cases published. In this article, we report a case of a 58-year-old male presenting with epistaxis and nasal obstruction as initial symptoms of a metastatic prostate carcinoma in the ethmoid cells and maxillary sinus.
2018: Case Reports in Otolaryngology
https://www.readbyqxmd.com/read/29768642/-rhinocerebral-mucormycosis
#8
Anke Mertens, Christoph Arens, Doreen Barche, Laszlo Scheinpflug, Friedrich Gunther Scholz, Stefan Vielhaber, Cordula Scherlach, Uwe Tröger, Gernot Geginat, Jacqueline Färber
Mucormycosis is a rare but serious type of fungal infection, which can progress rapidly especially in immunsupressed patients.We report about a 47 year old female patient with ptosis on the left eye. The ophthalmological report offered no further pathologic findings. Diabetes mellitus was known and the blood sugar value was very high.A computed tomography of the paranasal sinuses showed a shadow in the ethmoid bone and in an additonally performed MRI-scan, an increase of orbital fat and an extension of the ocular muscle were visible...
May 16, 2018: Laryngo- Rhino- Otologie
https://www.readbyqxmd.com/read/29764007/anesthetic-considerations-during-surgical-intervention-in-woake-s-syndrome-a-case-report
#9
So Ron Choi, Jeong Ho Kim, Kyoung Lin Chae, Seung Cheol Lee, Sang Yoong Park
Woake's syndrome (WS) is a recurrent nasal polyposis, accompanied by broadening of the nose, frontal sinus aplasia, dyscrinia, and bronchiectasis. There has been no previous report on anesthetic management in patients with WS. We describe a case involving a 13-year-old male patient with WS who was scheduled for septorhinoplasty for necrotic ethmoiditis. Anesthesia was induced and maintained with propofol and remifentanil using a target-controlled infusion device. The anesthetic considerations of this rare syndrome and the advantages of an intravenous infusion method over local and volatile anesthesia for these patients are discussed...
May 15, 2018: Korean Journal of Anesthesiology
https://www.readbyqxmd.com/read/29760919/anatomy-of-the-posterior-and-middle-ethmoidal-arteries-via-computed-tomography
#10
Hiroki Yamamoto, Kazuhiro Nomura, Hiroshi Hidaka, Yukio Katori, Naohiro Yoshida
Objective: The aim of this study is to investigate the anatomy of the posterior and middle ethmoidal arteries from the viewpoint of an endoscopic sinus surgeon. Methods: Based on 100 computed tomography images, the anatomical position of the posterior ethmoidal artery in relation to the posterior ethmoid cells was classified into five types. The presence of the posterior and middle ethmoidal arteries, their distance from the skull base, and their length exposed in the ethmoid cells were measured...
2018: SAGE Open Medicine
https://www.readbyqxmd.com/read/29757559/-ct-observation-of-retromaxillary-posterior-ethmoid
#11
Jin Feng Liu, Qi Tong Liu, Jin Yu Liu, Zhan Feng Yan, Ning Yu Wang
Objective: To investigate the morphologic characteristics of the retromaxillary posterior ethmoid. Method: A total of 103 outpatients encountered in our hospital during March 2012 and December 2012,who completed paranasal sinus CT examination,were included in this study.Patients had no sinus trauma,surgery or tumor history.Their paranasal sinus CT scans were analyzed from scheduled axial and coronal plane.The incidence and imaging features of the retromaxillary posterior ethmoid were observed. Result: The retromaxillary posterior ethmoid(RMPE)was the posterior ethmoid cell that expanded along the lamina papyracea toward the infraorbital region...
January 20, 2018: Journal of Clinical Otorhinolaryngology, Head, and Neck Surgery
https://www.readbyqxmd.com/read/29756404/nasal-fibroscopy-as-a-routine-screening-procedure-of-sinonasal-adenocarcinoma-of-woodworkers-french-longitudinal-case-study
#12
Julie Martin, Flora Vayr, Christophe Paris, Sébastien Vergez, Peggy Krief, Amandine Luc, Julie Corvisier, Ludovic de Gabory, Fabrice Herin
BACKGROUND: The purpose of this study was to assess the relevancy of flexible nasoendoscopy as a routine screening procedure of sinonasal adenocarcinoma among people occupationally exposed to wood dust. METHODS: This study included woodworkers, occupationally exposed to wood dust. Evaluations were scheduled at the time of inclusion (T0) and after a 2-year period (T1). A questionnaire was used for standardized data collection. The score was based on anatomic landmarks on each side that are parts of the olfactory clefts: the area of middle turbinate, the anterior part of the olfactory cleft, the top of the choanal arch, the spheno-ethmoidal recess, the posterior part of the olfactory cleft, and the middle part of the olfactory cleft...
May 13, 2018: Head & Neck
https://www.readbyqxmd.com/read/29755916/a-case-of-sinonasal-undifferentiated-carcinoma-with-brain-metastases
#13
Julianna Sienna, Nhu-Tram Nguyen, Julie Arsenault, Ian Hodson, Brandon Meyers
Sinonasal undifferentiated carcinoma (SNUC) is a rare aggressive neoplasm arising in the nasal cavity and paranasal sinuses. We report a unique case of an 80-year-old man who presented with a locally advanced SNUC involving the ethmoid, sphenoid, and maxillary sinuses and bilateral lymph nodes, clinical T4N2M0. Given his age and the initial extent of his primary tumour, he was treated with neoadjuvant chemotherapy followed by chemoradiation with a split course of 50 Gray (Gy) in 40 fractions delivered twice a day...
March 13, 2018: Curēus
https://www.readbyqxmd.com/read/29755895/role-of-thermography-in-the-diagnosis-of-chronic-sinusitis
#14
Raja Kalaiarasi, Chellappa Vijayakumar, Ramalingam Archana, Ramakrishnan Venkataramanan, Ranganathan Chidambaram, Sadhanandham Shrinuvasan, Ravi Prabhu
Introduction Thermography is a form of radiography that images the skin surface temperature. Thermograms are pictorial representations of thermal maps of the entire body's outer surface. Thermography was applied as an attempt to evaluate its usefulness in the diagnosis of chronic sinusitis (CS). Hence, this study was done to determine the diagnostic value of thermography for patients suffering from CS. Methodology Patients attending the Department of Otorhinolaryngology and Head and Neck Surgery over a two years' duration with symptoms suggestive of CS were included in this diagnostic evaluation study...
March 10, 2018: Curēus
https://www.readbyqxmd.com/read/29755824/olfactory-neuroblastoma-a-rare-cause-of-external-ophthalmoplegia-proptosis-and-compressive-optic-neuropathy
#15
Ömer Kartı, Mehmet Özgür Zengin, Ozan Çelik, Taşkın Tokat, Tuncay Küsbeci
Olfactory neuroblastoma (ONB), which is a neuroectodermal tumor of the nasal cavity, is a rare and locally aggressive malignancy that may invade the orbit via local destruction. In this study, we report a patient with proptosis, external ophthalmoplegia, and compressive optic neuropathy caused by ONB. A detailed clinical examination including ocular imaging and histopathological studies were performed. The 62-year-old female patient presented to our clinic with complaints of proptosis and visual deterioration in the left eye...
April 2018: Turkish Journal of Ophthalmology
https://www.readbyqxmd.com/read/29753077/endoscopic-endonasal-reconstruction-of-anterior-skull-base-defects-what-factors-really-affect-the-outcomes
#16
Mario Turri-Zanoni, Jacopo Zocchi, Alessia Lambertoni, Marta Giovannardi, Apostolos Karligkiotis, Paolo Battaglia, Davide Locatelli, Paolo Castelnuovo
OBJECTIVES: Endoscopic endonasal surgery has evolved considerably over the last few decades, requiring comparable advances in reconstructive techniques. The objectives of this study were to retrospectively review the outcomes of endoscopic anterior skull base (ASB) reconstruction and to analyze factors that might be associated with failures. METHODS: Data from patients who underwent endoscopic endonasal ASB reconstruction in a single Institution between 1998 and 2017 were collected...
May 9, 2018: World Neurosurgery
https://www.readbyqxmd.com/read/29752322/nccn-guidelines-insights-head-and-neck-cancers-version-1-2018
#17
A Dimitrios Colevas, Sue S Yom, David G Pfister, Sharon Spencer, David Adelstein, Douglas Adkins, David M Brizel, Barbara Burtness, Paul M Busse, Jimmy J Caudell, Anthony J Cmelak, David W Eisele, Moon Fenton, Robert L Foote, Jill Gilbert, Maura L Gillison, Robert I Haddad, Wesley L Hicks, Ying J Hitchcock, Antonio Jimeno, Debra Leizman, Ellie Maghami, Loren K Mell, Bharat B Mittal, Harlan A Pinto, John A Ridge, James Rocco, Cristina P Rodriguez, Jatin P Shah, Randal S Weber, Matthew Witek, Frank Worden, Weining Zhen, Jennifer L Burns, Susan D Darlow
The NCCN Guidelines for Head and Neck (H&N) Cancers provide treatment recommendations for cancers of the lip, oral cavity, pharynx, larynx, ethmoid and maxillary sinuses, and salivary glands. Recommendations are also provided for occult primary of the H&N, and separate algorithms have been developed by the panel for very advanced H&N cancers. These NCCN Guidelines Insights summarize the panel's discussion and most recent recommendations regarding evaluation and treatment of nasopharyngeal carcinoma...
May 2018: Journal of the National Comprehensive Cancer Network: JNCCN
https://www.readbyqxmd.com/read/29746583/decreased-expression-of-ccl17-in-the-disrupted-nasal-polyp-epithelium-and-its-regulation-by-il-4-and-il-5
#18
Byoungjae Kim, Hyun-Ji Lee, Nu-Ri Im, Doh Young Lee, Ha Kyun Kim, Cha Young Kang, Il-Ho Park, Seung Hoon Lee, Heung-Man Lee, Sang Hag Lee, Seung-Kuk Baek, Tae Hoon Kim
BACKGROUND: In airway epithelium, thymus and activation-regulated chemokine (CCL17) and macrophage-derived chemokine (CCL22) are induced by defective epithelial barriers such as E-cadherin and attract the effector cells of Th2 immunity. However, the association between the epithelial barrier and CCL17 expression has not been studied in chronic rhinosinusitis with nasal polyp (CRSwNP). Thus, we aimed to evaluate the expression of CCL17 and its regulation by Th cytokines in nasal polyp (NP) epithelial cells...
2018: PloS One
https://www.readbyqxmd.com/read/29744636/anatomical-variations-of-the-ethmoidal-roof-differences-between-men-and-women
#19
Milton Alberto Muñoz-Leija, Masao Yamamoto-Ramos, Francisco Jesús Barrera-Flores, José Luis Treviño-González, Alejandro Quiroga-Garza, Marco Antonio Méndez-Sáenz, Mario Alberto Campos-Coy, Guillermo Elizondo-Rojas, Santos Guzmán-López, Rodrigo Enrique Elizondo-Omaña
AIM: During the paranasal sinuses surgery different complications may occur, both vascular and bony. The objective of the present study was to evaluate the ethmoidal roof configuration through the Keros and Yenigun classifications, analyzing results stratified by gender and side. MATERIALS AND METHODS: We retrospectively analyzed 120 high-resolution computed tomography paranasal sinus study images and measured the depth of the cribriform plate in a coronal view and the anterior-posterior length in a cross section...
May 9, 2018: European Archives of Oto-rhino-laryngology
https://www.readbyqxmd.com/read/29719647/common-orbital-infections-state-of-the-art-part-i
#20
REVIEW
Shirin Hamed-Azzam, Islam AlHashash, Daniel Briscoe, Geoffrey E Rose, David H Verity
Infections of the orbit and periorbita are relatively frequent, and can cause significant local and systemic morbidity. Loss of vision occurs in more than 10% of patients, and systemic sequelae can include meningitis, intracranial abscess, and death. Numerous organisms infect the orbit, but the most common are bacteria. There are many methods through which orbital infections occur, with infection from the neighboring ethmoid sinuses the most likely cause for all age groups. Prompt management is essential in suspected orbital cellulitis, and involves urgent intravenous antibiotics, rehydration, and treatment of any co-existent underlying systemic disease, e...
April 2018: Journal of Ophthalmic & Vision Research
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