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Maxillary sinus

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https://www.readbyqxmd.com/read/28931199/maxillary-sinus-mucoceles-and-other-side-effects-of-external-beam-radiation-in-the-pediatric-patient-a-cautionary-tale
#1
Anthony Sheyn, Tate Naylor, Felicity Lenes-Voit, Eric Berg
A sinonasal mucocele can develop after the obstruction of a sinus ostium, which can occur secondary to trauma, infection, a neoplasm, or an iatrogenic cause. These mucoceles typically arise in the frontal and ethmoid sinuses. Sinonasal mucoceles are epithelium-lined cysts that can gradually expand to fill a paranasal sinus. They can present with ophthalmologic, rhinologic, and neurologic symptoms. There are reports in the literature of sinonasal mucocele development after radiation for nasopharyngeal carcinoma...
September 2017: Ear, Nose, & Throat Journal
https://www.readbyqxmd.com/read/28929080/sinonasal-schwannoma-a-rare-sinonasal-neoplasm
#2
Satish Kumar, Chanmiki Sayoo
Neoplasm in sinonasal cavity is dominated by epithelial type. Sinonasal schwannoma is a rare entity represent less than four percent of head and neck schwannoma. Clinically this tumour is commonly misdiagnosed until they are confirmed by histopathological examination. We present a case of schwannoma in sinonasal region with involvement of right side nasal cavity, maxillary sinus and maxillary alveolar process. The tumour was successfully removed by midfacial degloving approach.
September 2017: Indian Journal of Otolaryngology and Head and Neck Surgery
https://www.readbyqxmd.com/read/28928992/dental-implant-in-the-canalis-sinuosus-a-case-report-and-review-of-the-literature
#3
José Alcides Arruda, Pedro Silva, Luciano Silva, Pâmella Álvares, Leni Silva, Ricardo Zavanelli, Cleomar Rodrigues, Marleny Gerbi, Ana Paula Sobral, Marcia Silveira
The canalis sinuosus is a neurovascular canal, a branch of nerve of infraorbital canal, through which the anterior superior alveolar nerve passes and then leans medially in course between the nasal cavity and the maxillary sinus, reaching the premaxilla in the canine and incisor region. The purpose of this article is to report a case with the presence of canalis sinuosus, in order to alert and guide professionals and discuss the morphology of this anatomical variation avoiding trans- and postsurgical disorders in dental implants...
2017: Case Reports in Dentistry
https://www.readbyqxmd.com/read/28921521/a-paradigm-for-evaluation-and-management-of-the-maxillary-sinus-before-dental-implantation
#4
Yi-Wei Chen, Fu-Ying Lee, Po-Hung Chang, Chi-Che Huang, Chia-Hsiang Fu, Chien-Chia Huang, Ta-Jen Lee
OBJECTIVES: To determine a paradigm for evaluating and managing maxillary sinus conditions before dental implantation via preoperative sinonasal assessment. STUDY DESIGN: Prospective cohort study. METHODS: Eighty-four patients who underwent dental implantation with or without sinus augmentation were included. Maxillary sinus conditions were classified into groups 1 to 6 according to cone-beam computed tomography (CT) findings: 1) nonspecific findings, 2) solitary polyp or cyst, 3) mucosal thickening, 4) air-fluid level or fluid accumulation, 5) near-total opacification of the maxillary or other paranasal sinus, and 6) calcification spots in the maxillary sinus...
September 16, 2017: Laryngoscope
https://www.readbyqxmd.com/read/28920140/frequency-location-and-association-with-dental-pathology-of-mucous-retention-cysts-in-the-maxillary-sinus-a-radiographic-study-using-cone-beam-computed-tomography-cbct
#5
Andy Wai Kan Yeung, Ray Tanaka, Pek-Lan Khong, Thomas von Arx, Michael M Bornstein
OBJECTIVES: The purpose of the present study was to evaluate the frequency, locations, and dimensions of mucous retention cysts of the maxillary sinus and analyze potential associated dental pathology. MATERIALS AND METHODS: A total of 156 cone beam computed tomography (CBCT) scans were included in the analysis, resulting in an evaluation of 310 maxillary sinuses. The presence of mucous retention cysts (MRC) manifesting as dome-shaped radiopacities in the sinus was diagnosed...
September 17, 2017: Clinical Oral Investigations
https://www.readbyqxmd.com/read/28913290/delayed-onset-methicillin-resistant-staphylococcus-aureus-infection-at-18-months-after-absorbable-plate-fixation-for-zygomaticomaxillary-complex-fracture
#6
Hyun Rok Lee, Hea Kyeong Shin, Dong Lark Lee, Gyu Yong Jung
None of the reports of delayed infection mentioned a latent period exceeding 13 months. we report an infection that developed 18 months after implantation of an absorbable plate. A 16-year-old adolescent girl had undergone reduction and fixation with an absorbable plate for Lefort I and zygomaticomaxillary complex fractures 18 months prior at our hospital. In her most recent hospital visit as an outpatient, abscess was observed in periocular area. Computed tomography revealed sinusitis with an abscess above the infraorbital rim...
December 2016: Arch Craniofac Surg
https://www.readbyqxmd.com/read/28905513/large-cell-neuroendocrine-carcinoma-of-the-maxillary-sinus-on-fine-needle-aspiration-cytology-report-of-a-rare-case-with-a-focus-on-pitfalls-in-diagnosis
#7
Akihiko Kawahara, Takeharu Ono, Akiko Sumi, Hideyuki Abe, Yorihiko Takase, Kazuya Murata, Tomohiko Yamaguchi, Yoshiki Naito, Jun Akiba
Head and neck large cell neuroendocrine carcinoma (LCNEC) is a rare high-grade malignant tumor with neuroendocrine differentiation. We report a case of LCNEC causing difficulty in cytological diagnosis. A 60-year-old man with right-sided face pain presented with a swelling at the right cheek, and he complained of right nasal obstruction and lacrimation. Preoperative fine-needle aspiration cytology (FNAC) showed high cellularity, with a moderate number of clusters of tumor cells on an abundant necrotic background...
September 14, 2017: Diagnostic Cytopathology
https://www.readbyqxmd.com/read/28905117/mechanical-characteristics-of-the-maxillary-sinus-schneiderian-membrane-ex-vivo
#8
Angel Insua, Florencio Monje-Gil, Lucía García-Caballero, Jordi Caballé-Serrano, Hom-Lay Wang, Alberto Monje
OBJECTIVES: It has been speculated that certain Schneiderian membrane thickness (SMT) might be more prone to perforation. This investigation was aimed at studying the mechanical characteristics of the Schneiderian membrane under one- and two-dimensional tests and their correlation to the histological SMT in human samples. MATERIAL AND METHODS: Sixteen Schneiderian membranes were collected from 11 cadaver heads treated with Thiel's embalming method. The samples were processed and analyzed clinically and histologically...
September 13, 2017: Clinical Oral Investigations
https://www.readbyqxmd.com/read/28904924/rare-opportunistic-bread-mold-fungal-infection-of-maxillary-sinus-in-a-diabetic-patient
#9
Nandini Bhaskar, Vipin Chhabra, Nitin Kaushal, Salil Aggarwal
Mucormycosis is a rare potentially fatal opportunistic fungal infection that affects human beings. Normally, a healthy is immune to such infections but there are some risk factors which predispose a person to mucormycosis, of which malnutrition and diabetes mellitus are the most common risk factors. India is the most commonly affected country by mucormycosis because of high proportion people with low socioeconomic status and diabetes mellitus. In diabetes mellitus, mucormycosis is more aggressive and fatal due to an impaired host defense mechanism...
July 2017: International Journal of Applied and Basic Medical Research
https://www.readbyqxmd.com/read/28901310/treatment-outcomes-of-malignant-fibrous-histiocytoma-of-the-maxillary-sinus
#10
Hui Huang, Dezhi Li, Xiaolei Wang, Yuehuang Wu, Shaoyan Liu, Zhengang Xu
BACKGROUND: Malignant fibrous histiocytoma (MFH) is an uncommon neoplasm of maxillary sinus. This study was designed to investigate the clinical courses and summarize the experience of the treatment outcomes. MATERIALS AND METHODS: This is a retrospective analysis which included patients with MFH of the maxillary sinus from January 1980 to December 2008 treated in our institute. Survival data were analyzed by means of the Kaplan-Meier method using univariate analysis and Cox regression model using multivariate analysis...
2017: Journal of Cancer Research and Therapeutics
https://www.readbyqxmd.com/read/28900824/external-nasal-neuralgia-an-update
#11
REVIEW
Hida Nierenburg, Morgane Swift Morris
PURPOSE OF REVIEW: External nasal neuralgia is a rare syndrome of atypical facial pain for which there is limited reports in the scientific literature. We aim to review diagnosis and provide an update on treatments for this rare condition. RECENT FINDINGS: Etiology has been documented as post-traumatic due to direct trauma to the nose area and in few case reports, idiopathic. Sensory innervation of the nose arises from the ophthalmic and maxillary divisions of the trigeminal nerve...
September 13, 2017: Current Pain and Headache Reports
https://www.readbyqxmd.com/read/28900497/pretreatment-nomograms-for-local-and-regional-recurrence-after-radical-radiation-therapy-for-primary-nasopharyngeal-carcinoma
#12
Fo-Ping Chen, Li Lin, Zhen-Yu Qi, Guan-Qun Zhou, Rui Guo, Jiang Hu, Ai-Hua Lin, Jun Ma, Ying Sun
Background: The aim of this study was to build nomograms to predict local recurrence (LR) and regional recurrence (RR) in patients with nasopharyngeal carcinoma (NPC) underwent intensity-modulated radiation therapy (IMRT). Patients and Methods : A total of 1811 patients with non-metastatic NPC treated with IMRT (with or without chemotherapy) between October 2009 and February 2012 at our center were involved for building the nomograms. Nomograms for LR-free rate and RR-free rate at 3- and 5- year were generated as visualizations of Cox proportional hazards regression models, and validated using bootstrap resampling, estimating discrimination and calibration...
2017: Journal of Cancer
https://www.readbyqxmd.com/read/28893971/computed-tomographic-assessment-of-equine-maxillary-cheek-teeth-anatomical-relationships-and-paranasal-sinus-volumes
#13
Tiziana Liuti, Richard Reardon, Paddy M Dixon
Disorders affecting the equine maxillary cheek teeth and paranasal sinuses are relatively common, but limited objective information is available on the dimensions and relationships of these structures in horses of different ages. The aims of this study were to assess age-related changes in the positioning and anatomical relationships of the individual maxillary cheek teeth with the infraorbital canal and maxillary septum and the volumes of the individual sinus compartments. CT and gross examination were performed on 60 normal equine cadaver heads that were aged by their dentition...
September 11, 2017: Veterinary Record
https://www.readbyqxmd.com/read/28893000/detection-of-dental-pathologies-in-routine-paranasal-ct-scans-a-retrospective-study
#14
Erdogan Bulbul, Bahar Yanik, Gulen Demirpolat
INTRODUCTION: Multidetector Computed Tomography (MDCT) is a widespread method for evaluating paranasal sinuses and nasal cavity in daily practice. The maxillary teeth are in field of view in a paranasal sinus CT scan and it is possible to detect dental pathologies with CT. AIM: To determine the incidence of maxillary teeth pathologies in routine paranasal sinus CT scans. MATERIALS AND METHODS: A retrospective study was conducted. Consecutive 395 paranasal sinus CT scans were evaluated...
July 2017: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28889233/adenoid-cystic-carcinoma-of-the-cavernous-sinus-otolaryngological-sequelae-of-therapy-case-report
#15
Edyta Dzięciołowska-Baran, Aleksandra Gawlikowska-Sroka
A 60-year-old woman, otherwise in a good health condition, was first admitted to the hospital with a year-long tingling sensations of the right half of the face, which gradually turned into severe neuralgia corresponding to maxillary (V2) and mandibular (V3) branches of the right trigeminal nerve. MRI scans of the head revealed an unusual hyperplastic or inflammatory changes along the brain base, cavernous sinus extending toward the pterygopalatine fossa, and lateral pterygoid on the right side. Meningioma was suspected and neuralgia was treated conservatively...
September 10, 2017: Advances in Experimental Medicine and Biology
https://www.readbyqxmd.com/read/28889021/maxillary-sinuses-and-midface-in-patients-with-cleidocranial-dysostosis
#16
Tomasz Kulczyk, Agnieszka Przystańska, Artur Rewekant, Renata Turska-Malińska, Agata Czajka-Jakubowska
The cleidocranial dysplasia is general skeletal disorder with an autosomal dominant inheritance. It is manifested by many craniofacial abnormalities, of which the maxillary hypoplasia is the most evident. The aim of the study was to use CBCT to evaluate the volume of the maxillary sinuses and the dimensions of maxillae in patients with CCD and compare them with healthy individuals. Files of four children with cleidocranial dysplasia were investigated.Volume of every maxillary sinus as well as two dimensional measurements of distances between particular points of interest located on surface of maxilla were calculated from reconstructed CBCT examination...
September 6, 2017: Annals of Anatomy, Anatomischer Anzeiger: Official Organ of the Anatomische Gesellschaft
https://www.readbyqxmd.com/read/28887879/orbital-floor-fracture-repair-the-endonasal-approach
#17
T Kuhnel, H Jagle, W Hosemann, R Weber, V Vielsmeier
To avoid the dangers associated with lower eyelid approaches to the orbital floor and to improve visualization, we propose an endoscopic procedure for orbital floor fracture reduction and osteosynthesis using endonasal access via the medial maxillary sinus wall. The technique of endoscopic, endonasal transantral surgery is described, together with a retrospective analysis of 17 patients who had undergone this surgical procedure in the Department of Otorhinolaryngology, University of Regensburg, between July 2013 and June 2016...
September 9, 2017: Rhinology
https://www.readbyqxmd.com/read/28885316/evaluation-of-single-tooth-loss-to-maxillary-sinus-and-surrounding-bone-anatomy-with-cone-beam-computed-tomography-a-multicenter-study
#18
Huseyin Gencay Keceli, Erhan Dursun, Anil Dolgun, Miguel Velasco-Torres, Suzan Karaoglulari, Reihaneh Ghoreishi, Khaled Sinjab, Rachel A Sheridan, Marius Kubilius, Melek D Tözüm, Pablo Galindo-Moreno, Hasan Guney Yilmaz, Hom-Lay Wang, Gintaras Juodzbalys, Tolga F Tözüm
BACKGROUND: Posterior maxillary tooth loss may complicate the implant treatment due to the alterations in alveolar anatomy and maxillary sinus pneumatization. This study aimed to comprehensively examine the anatomical structure of this region from cone-beam computed tomography (CBCT) images. MATERIALS AND METHODS: The posterior maxilla regions with single tooth loss were analyzed by dividing the variables into 3 subgroups from images of 597 patients chosen from 1160 CBCTs...
September 6, 2017: Implant Dentistry
https://www.readbyqxmd.com/read/28883677/comparison-of-results-of-measurement-of-dimensions-of-the-placed-dental-implants-on-cone-beam-computed-tomography-with-dimensions-of-the-producers-of-the-implants
#19
Merisa Repesa, Amela Sofic, Selma Jakupovic, Selma Tosum, Lejla Kazazic, Almir Dervisevic
INTRODUCTION: One of the most frequently used method for scanning patients with indication for dental implantation in dentistry is cone beam computed tomography. Implantation, CBCT imaging and implant programme are inevitable when planning a successful replacement of lost teeth. CBCT offers exact information about available bone and its density, adjacent tooth roots, the place of mandibular canal and maxillary sinus and adjacent anatomical structure. AIM: The goal of this study is to estimate accuracy of measurements on CBCT images ofpatients who have implants of different producers and determine if there is any statistically significant correlation between four test groups regardless of the alloy of which implants are made...
June 2017: Acta Informatica Medica: AIM
https://www.readbyqxmd.com/read/28878909/a-rare-case-of-epstein-barr-virus-related-plasmacytoma-involving-maxillary-sinus-mucosa
#20
Julie D Gibbs, Marino E Leon, Kenia Liu, Johnny Nguyen, Ling Zhang
Extramedullary plasmacytomas, Epstein-Bar virus (EBV) associated, are rarely encountered and usually have a fairly good clinical outcome. EBV+ plasmacytoma may cause a diagnostic dilemma as it phenotypically resembles an aggressive plasmablastic lymphoma (PBL). Herein, we report a unique case with maxillary EBV+ plasmacytoma from a 76-year-old immunocompetent individual.
September 2017: Clinical Case Reports
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