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Maxillary sinus

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https://www.readbyqxmd.com/read/28106705/repair-of-orbital-floor-fracture-with-modified-transnasal-endoscopic-approach-through-anterior-space-to-nasolacrimal-duct
#1
Motohiko Suzuki, Yoshihisa Nakamura, Shinya Ozaki, Makoto Yokota, Shingo Murakami
OBJECTIVES: Endoscopic approach provides excellent magnification and visualization, and a purely transnasal approach is minimally invasive method. However, it is very difficult to repair anterior and lateral fractures with the previous transnasal endoscopic approaches, since repair of orbital fractures is managed through the middle meatus and ostium from the posterior side of the nasolacrimal duct with side-viewing endoscope and curved instruments. Therefore, the authors used modified transnasal endoscopic approach as an alternative for repair of orbital floor fractures in order to effectively reach the lateral or anterior fracture of the orbital floor with straight endoscope and instruments endoscopically...
January 18, 2017: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/28106694/the-endoscopic-prelacrimal-recess-approach-to-the-pterygopalatine-fossa-and-infratemporal-fossa
#2
Li Gao, Lei Zhou, Zhengshou Dai, Xinsheng Huang
PURPOSE: The authors studied the anatomic importance of the endoscopic prelacrimal recess approach (PLRA) to the pterygopalatine fossa (PPF) and infratemporal fossa (ITF). METHODS: Ten adult heads (20 sides) from cadavers fixed in formalin were dissected using the PLRA. Anatomic dissections were detailed and several crucial landmarks measured. RESULTS: Identification of the infraorbital neurovascular bundle is the crucial step for the detection of other branches of the maxillary artery...
January 18, 2017: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/28101784/dental-implants-and-grafting-success-remain-high-despite-large-variations-in-maxillary-sinus-mucosal-thickening
#3
Bartosz Maska, Guo-Hao Lin, Abdullah Othman, Shabnam Behdin, Suncica Travan, Erika Benavides, Yvonne Kapila
BACKGROUND: Although mucosal thickening is the most common radiographic finding observed regarding sinus pathology, the knowledge regarding its clinical significance on the outcomes of dental implants and grafting in the maxillary sinuses is still limited. We hypothesized that mucosal thickening would not alter the predictability for sinus floor augmentation and dental implant placement. The purpose of this retrospective study was to evaluate the outcomes of dental implant placement in sinus-augmented areas with preexisting sinus mucosal thickening...
December 2017: International Journal of Implant Dentistry
https://www.readbyqxmd.com/read/28101497/the-factors-that-influence-postoperative-stability-of-the-dental-implants-in-posterior-edentulous-maxilla
#4
Yun-Ho Kim, Na-Rae Choi, Yong-Deok Kim
BACKGROUND: All clinicians are aware of the difficulty of installing a dental implant in posterior maxilla because of proximate position of maxillary sinus, insufficient bone width, and lower bone density. This study is to examine which factors will make the implantation in the posterior maxilla more difficult, and which factors will affect the postoperative implant stability in this region. METHODS: Five hundred seventy-three fixtures on the maxilla posterior were included for this study from all the patients who underwent an installation of the dental implant fixture from January 2010 to December 2014 at the Department of Oral and Maxillofacial Surgery in Pusan National University Dental Hospital (Yangsan, Korea)...
December 2017: Maxillofacial Plastic and Reconstructive Surgery
https://www.readbyqxmd.com/read/28092136/computational-fluid-dynamic-modeling-of-nose-to-ceiling-head-positioning-for-sphenoid-sinus-irrigation
#5
John R Craig, James N Palmer, Kai Zhao
BACKGROUND: After sinus surgery, patients are commonly instructed to irrigate with saline irrigations with their heads over a sink and noses directed inferiorly (nose-to-floor). Although irrigations can penetrate the sinuses in this head position, no study has assessed whether sphenoid sinus penetration can be improved by irrigating with the nose directed superiorly (nose-to-ceiling). The purpose of this study was to use a validated computational fluid dynamics (CFD) model of sinus irrigations to assess the difference in sphenoid sinus delivery of irrigations after irrigating in a nose-to-floor vs nose-to-ceiling head position...
January 16, 2017: International Forum of Allergy & Rhinology
https://www.readbyqxmd.com/read/28089462/destructive-soft-tissue-mass-in-the-maxilla-maxillary-sinus
#6
Emily Lanzel, Sergei I Syrbu, John W Hellstein, Kyle M Stein, Sean Welander, Saulo L Sousa Melo
No abstract text is available yet for this article.
November 2, 2016: Oral Surgery, Oral Medicine, Oral Pathology and Oral Radiology
https://www.readbyqxmd.com/read/28086986/radioiodine-sinus-uptake-related-to-mucosal-thickening-or-aspergilloma-a-case-series-of-an-unrecognized-event-well-evidenced-by-spect-ct
#7
Renaud Ciappuccini, David Blanchard, Jean-Pierre Rame, Dominique de Raucourt, Emmanuel Babin, Stéphane Bardet
BACKGROUND: False-positive radioiodine (RAI) uptake related to chronic sinusitis and mucocele has only rarely been reported in patients with differentiated thyroid cancer (DTC) even with the recent use of single photon emission tomography with computed tomography (SPECT/CT) acquisition. No other etiology of sinus RAI uptake has been mentioned to date. OBJECTIVES: We report five cases of DTC patients with sinus RAI uptake on post-RAI scintigraphy. SPECT/CT clearly localized RAI uptake either in the sphenoid, the maxillary or the frontal sinus and highly suspected mucosal thickening in four patients and sinus aspergilloma in one patient...
January 13, 2017: Cancer Imaging: the Official Publication of the International Cancer Imaging Society
https://www.readbyqxmd.com/read/28067755/vascular-structures-of-the-lateral-wall-of-the-maxillary-sinus-a-vascular-labeling-technique
#8
José Caraballo, Alba Gálvez, María Cristina Manzanares-Céspedes, Iván Valdivia-Gandur, Rui Figueiredo, Eduard Valmaseda-Castellón
PURPOSE: Sinus floor augmentation is a common procedure in implant dentistry. However, several intraoperative complications can occur during this procedure, such as bleeding from the lateral wall of the maxillary sinus. The aim of this study was to describe the vascular structures of the lateral wall of the maxillary sinus using a vascular labeling technique. MATERIALS AND METHODS: Ten cadaveric specimens were prepared by the vascular labeling technique. Liquid latex was injected into the large vessels of the head, and the lateral wall of the maxillary sinus was exposed by dissection...
January 6, 2017: Implant Dentistry
https://www.readbyqxmd.com/read/28064266/infantile-intraosseous-maxillary-hemangioma
#9
Divya Gupta, Ishwar Singh, Kavita Goyal, Parul Sobti
BACKGROUND: Primary osseous hemangiomas of the facial skeleton mimic malignancy. Their location in maxillary sinus, especially in infants is extremely rare. CASE CHARACTERISTICS: 1- month-old full term boy with maxillary swelling. OBSERVATIONS: Biopsy from oral route revealed hemangioma showing vascular channels lined by endothelial cells. Patient improved on oral steroids. MESSAGE: Hemangiomas should be considered as one of the differential diagnosis of unilateral maxillary swelling in infants...
December 15, 2016: Indian Pediatrics
https://www.readbyqxmd.com/read/28063243/local-extension-staging-of-sinonasal-tumors-retrospective-comparison-between-ct-mri-assessment-and-pathological-findings
#10
Geoffrey Mortuaire, Domitille Camous, Claire Vandenhende-Szymanski, Frédérique Dubrulle, Dominique Chevalier
OBJECTIVES: To assess the reliability of clinical staging with CT and MRI in sinonasal cancers. METHODS: We conducted a retrospective review of patients who underwent surgery for a sinonasal cancer. The 7(th) edition of the TNM classification was used to establish tumor staging. Standardized preoperative CT/MRI staging was compared with the pathological staging based on specimens obtained during surgery from each subsite within and around the tumor. RESULTS: We analyzed data from 68 patients between January 2010 and December 2014...
January 7, 2017: Clinical Otolaryngology
https://www.readbyqxmd.com/read/28061497/cerebellar-hemorrhage-due-to-a-direct-carotid-cavernous-fistula-after-surgery-for-maxillary-cancer
#11
Yoshinobu Kamio, Hisaya Hiramatsu, Mika Kamiya, Shuhei Yamashita, Hiroki Namba
Infratentorial cerebral hemorrhage due to a direct carotid-cavernous fistula (CCF) is very rare. To our knowledge, only four such cases have been reported. Cerebellar hemorrhage due to a direct CCF has not been reported. We describe a 63-year-old female who presented with reduced consciousness 3 days after undergoing a maxillectomy for maxillary cancer. Computed tomography showed a cerebellar hemorrhage. Magnetic resonance angiography showed a left-sided direct CCF draining into the left petrosal and cerebellar veins through the left superior petrosal sinus (SPS)...
January 1, 2017: Journal of Korean Neurosurgical Society
https://www.readbyqxmd.com/read/28060105/myofibroma-in-infancy-and-childhood
#12
Priya Mahajan, John Hicks, Murali Chintagumpala, Rajkumar Venkatramani
Myofibromas are rare fibroblastic-myofibroblastic tumors in children. Their biological behavior is unpredictable and spontaneous regressions have been described. This is a retrospective review of clinical characteristics, treatment, and outcome of children diagnosed with myofibroma between 1999 and 2013 at Texas Children's Hospital. The median age at diagnosis of 42 patients was 37 months. Approximately two thirds of the patients were male. The median length of follow-up was 50.5 months (range, 0 to 165 mo)...
January 5, 2017: Journal of Pediatric Hematology/oncology
https://www.readbyqxmd.com/read/28060098/the-manangement-of-the-paranasal-sinus-osteomas
#13
Hasan Hüseyin Arslan, Hamdi Tasli, Süleyman Cebeci, Mustafa Gerek
OBJECTIVE: Osteoma is the most common benign tumor of the paranasal sinuses. The clinical characteristics and treatment of this disease remain controversial. The aim of this study is to determine the appropriate method of treatment approach according to the features of osteomas. METHODS: Forty-one patients with paranasal sinus osteomas were included in the study. According to the location and the size of tumors, patients were followed up or operated. Surgical treatment was performed via external, endoscopic, or combined approaches for symptomatic patients...
January 5, 2017: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/28058144/failed-mask-ventilation-due-to-air-leakage-around-the-orbit-in-a-patient-with-a-history-of-radical-maxillofacial-surgery-with-orbital-exenteration
#14
Reiko Horishita, Kenji Kayashima
A 72-year-old male (height: 160 cm, weight: 53 kg) was scheduled to undergo left renal and male with ans uterine tract resection. The patient had previously undergone right radical maxillofacial surgery with orbital exenteration 14 years before the present operation to treat squamous cell carcinoma of the right maxillary sinus, with tumour invasion to the orbital floor. An anaesthesiologist encountered difficulty in performing mask ventilation during the induction of anaesthesia in the patient, despite a good mask fit on the face, because the adhesive tape around the orbit had moved...
December 2016: Turkish Journal of Anaesthesiology and Reanimation
https://www.readbyqxmd.com/read/28050978/prevalence-location-and-size-of-maxillary-sinus-septa-computed-tomography-scan-analysis
#15
Ferial Taleghani, Maryam Tehranchi, Shahryar Shahab, Zahra Zohri
INTRODUCTION: The present study was undertaken to evaluate the anatomy of the maxillary sinus in relation to its position and the height of its septa, using cone beam computed tomography (CBCT). MATERIALS AND METHODS: In this descriptive retrospective study, 300 CBCT images of maxillary sinuses of patients with posterior maxillary edentulism were evaluated. The maxillary sinus septa were evaluated in relation to their prevalence, height, and position; t-test and Mann-Whitney tests were used for the analysis of data...
January 1, 2017: Journal of Contemporary Dental Practice
https://www.readbyqxmd.com/read/28050414/radiological-study-of-maxillary-sinus-using-cbct-relationship-between-mucosal-thickening-and-common-anatomic-variants-in-chronic-rhinosinusitis
#16
Marco Capelli, Patrizia Gatti
INTRODUCTION: Inflammatory diseases of the maxillary sinus favour the thickening of the sinus mucosa. Therefore, it might be possible to establish a radiological, pathological threshold of mucosal thickening. Furthermore, there is an association between common anatomic variants of the nose and maxillary mucosal thickening. AIM: To define the pathological thickening of maxillary sinus mucosa and its association with the presence of common anatomic variants (concha bullosa, Haller's cell and accessory maxillary ostium)...
November 2016: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28050382/intestinal-type-adenocarcinoma-from-inverted-papilloma-a-rare-recurrence
#17
Garima Singh, Meeta Singh, Mansi Chandana, Sompal Singh, Namrata Nargotra
Inverted Papilloma (IP) is an uncommon and locally aggressive benign tumour of sinonasal region, which tends to recur after surgical resection. Most tumours are confined to the lateral nasal wall and sinuses, with maxillary sinus being most commonly affected and a male preponderance. It has a known association with in situ and invasive carcinomas with a <10% rate of malignant transformation. Most common association has been seen with squamous cell carcinoma and extremely rare association with adenocarcinoma and small cell carcinoma...
November 2016: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28045812/miniplate-with-a-bendable-c-tube-head-allows-the-clinician-to-alter-biomechanical-advantage-in-extremely-complicated-anatomic-structure
#18
Kyung Won Seo, Nur Serife Iskenderoglu, Eui Hwan Hwang, Kyu-Rhim Chung, Seong-Hun Kim
BACKGROUNDS: This article reports C-tube miniplates as a practical temporary anchorage device choice to treat open bite patients with maxillary sinus pneumatization. METHODS: The C-tube components are titanium anchor plates and monocortical screws that are basically similar to any other miniplate systems, but it has the unique characteristic of the tube head to be malleable. The manipulation of the head part is easy due to the composition of pure titanium. The I-shaped C-tube with 3 holes and T-shaped C-tube miniplates were placed above the apices of maxillary molars as an absolute anchorage system to intrude the posterior maxilla...
December 30, 2016: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/28045811/endoscopic-assisted-sinus-floor-augmentation-combined-with-removal-of-an-antral-pseudocyst-of-the-ipsilateral-maxillary-sinus
#19
Ying Kai Hu, Chi Yang, Wen Tao Qian
The aim of this study was to present an endoscopic-assisted intraoral surgical technique for sinus floor augmentation and removal of an antral pseudocyst simultaneously. The patient underwent sinus floor augmentation combined with removal of an antral pseudocyst in the ipsilateral maxillary sinus. Transoral endoscopic technique was applied to check the status of sinus mucosa during the operation. Complications were evaluated. Perforation of the sinus membrane was observed during augmentation procedure, and was covered with an absorbable membrane...
December 30, 2016: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/28042439/full-arch-rehabilitation-in-severe-maxillary-atrophy-with-palatal-approach-implant-placement-a-case-report
#20
M Andreasi Bassi, M A Lopez, C Andrisani, Z Ormanier, M Gargari
PURPOSE: The edentulous severely atrophic maxilla, as consequence of alveolar bone resorption and pneumatisation of the maxillary sinus, represents a serious limitation to the implant rehabilitation. Implants insertion via palatal approach (PA), in combination with relatively minimally invasive techniques aimed at increasing bone volume without the use of autologous bone harvesting is a valid alternative among the options for the rehabilitation of the upper jaw. CLINICAL CASE: In a 70-year-old female, with a severe maxillary atrophy, 6 spiral taper implants were placed with the PA, combined with the bilateral transcrestal elevation of both the sinus floors and nasal cavities; a further GBR, with resorbable pericardium membrane covering a termoplastic allograft associated to a xenograft, was performed...
July 2016: Oral & Implantology
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