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Paranasal sinus

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https://www.readbyqxmd.com/read/29341940/mucocele-of-the-sphenoid-sinus
#1
Karen B Djambazov, Borislav D Kitov, Christo B Zhelyazkov, Atanas N Davarski, Alexandrina R Topalova
Mucocele of the paranasal sinuses is a rare disease with slow evolution. It is a benign, encapsulated and destructive formation filled with mucous fluid and tapistrated with respiratory epithelium. Of all the paranasal sinuses, the sphenoid sinus is affected in only 1-7% of the cases. We present two cases of mucocele of the sphenoid sinus involving the posterior ethmoidal cells. We consider here their clinical presentation, use of neuroimaging in the diagnosis, surgical care and postoperative results. Both patients presented with a history of persistent headache and in addition, one of them had a paresis of the right oculomotor and abducens nerves...
December 20, 2017: Folia Medica
https://www.readbyqxmd.com/read/29339322/endoscopic-endonasal-craniofacial-surgery-for-recurrent-skull-base-meningiomas-involving-the-pterygopalatine-fossa-the-infratemporal-fossa-the-orbit-and-the-paranasal-sinus
#2
Masahiro Shin, Masaaki Shojima, Kenji Kondo, Hirotaka Hasegawa, Shunya Hanakita, Akihiro Ito, Taichi Kin, Nobuhito Saito
OBJECT: Skull base meningiomas carry a non-negligible risk of recurrence. In particular, those arising from the sphenoid wings or middle cranial fossa penetrate into extracranial regions, uncommonly showing massive expansion into the craniofacial regions on recurrence. The role of endoscopic endonasal surgery for those intractable lesions remains unclear. METHODS: We performed endoscopic endonasal craniofacial surgery for 8 recurrent meningiomas invading into the pterygopalatine fossa, infratemporal fossa, nasopharynx, paranasal sinus, or orbit, comprising 2 meningothelial and 1 fibrous meningiomas (WHO grade I), 3 atypical and 1 clear cell meningiomas (grade II), and 1 anaplastic meningioma (grade III)...
January 12, 2018: World Neurosurgery
https://www.readbyqxmd.com/read/29338280/variable-skeletal-anatomical-features-of-acromegaly-in-the-skull-and-craniocervical-junction
#3
Maria Piagkou, Othon Manolakos, Theodore Troupis, Nikolaos Lazaridis, Konstantinos Laios, Alexandros Samolis, Konstantinos Natsis
OBJECTIVE: This study adds important information regarding the morphological alterations caused by growth hormone hypersecretion in the skull and craniocervical junction (CCJ). A variably asymmetric skull due to acromegaly coexists with expansion of the paranasal sinuses and multiple Wormian bones. CASE REPORT: A pathologically asymmetric dry skull of a European male, aged 38 years at death, with cranial vault and skull base thickening is described. The extensive paranasal sinus pneumatization caused a generalized thinning of the bony walls...
November 2017: Acta Medica Academica
https://www.readbyqxmd.com/read/29337014/the-anatomic-analysis-of-the-vidian-canal-and-the-surrounding-structures-concerning-vidian-neurectomy-using-computed-tomography-scans
#4
Gülay Açar, Aynur Emine Çiçekcibaşı, İbrahim Çukurova, Kemal Emre Özen, Muzaffer Şeker, İbrahim Güler
INTRODUCTION: The type of endoscopic approach chosen for vidian neurectomy can be specified by evaluating the vidian canal and the surrounding sphenoid sinus structures. OBJECTIVE: The variations and morphometry of the vidian canal were investigated, focusing on the functional correlations between them which are crucial anatomical landmarks for preoperative planning. METHODS: This study was performed using paranasal multidetector computed tomography images that were obtained with a section thickening of 0...
December 26, 2017: Brazilian Journal of Otorhinolaryngology
https://www.readbyqxmd.com/read/29327684/diagnosis-and-treatment-of-nasal-and-paranasal-inverted-papillomas-epidemiology-and-own-experience
#5
Joanna Nowosielska-Grygiel, Piotr Pietkiewicz, Kalina Owczarek, Jurek Olszewski, Jarosław Miłoński
INTRODUCTION: The aim of this study was to analyse the occurrence of inverted papillomas of the nose and paranasal sinuses in patients that underwent endoscopic sinus surgery in our department. MATERIAL AND METHODS: Between 2006 and 2016, 3,574 patients underwent surgery due to paranasal sinus diseases. Patients were qualified for surgery based on medical history, computed tomography, and laboratory tests. Data were gathered from medical files, and they included age, sex, and histopathological diagnosis...
December 30, 2017: Otolaryngologia Polska
https://www.readbyqxmd.com/read/29326525/mucormycosis-in-a-diabetic-patient-a-case-report-with-an-insight-into-its-pathophysiology
#6
Syeda Neelam Afroze, Rajani Korlepara, Guttikonda Venkateswara Rao, Jayakiran Madala
Mucormycosis is one of the most rapidly progressing and fulminant forms of fungal infection which usually begins in the nose and paranasal sinuses following inhalation of fungal spores. It is caused by organisms of the subphylum Mucormycotina, including genera as Absidia, Mucor, Rhizomucor, and Rhizopus. The incidence of mucormycosis is approximately 1.7 cases per 1,000,000 inhabitants per year. Mucormycosis affecting the maxilla is rare because of rich blood vessel supply of maxillofacial areas although more virulent fungi such as Mucor can overcome this difficulty...
October 2017: Contemporary Clinical Dentistry
https://www.readbyqxmd.com/read/29316973/kartagener-s-syndrome-a-case-report
#7
Abilo Tadesse, Hailemariam Alemu, Mezgebu Silamsaw, Yonathan Gebrewold
BACKGROUND: Kartagener's syndrome is a subset of primary ciliary dyskinesia, an autosomal recessive inherited disorder characterized by the clinical triad of chronic sinusitis, bronchiectasis, and situs inversus. Abnormal ciliary structure or function leading to impaired ciliary motility is the main pathophysiologic problem in Kartagener's syndrome. CASE PRESENTATION: A 24-year-old man from Gondar town, North-West Ethiopia, presented to University of Gondar Hospital with recurrent episodes of nasal congestion with itching and paranasal discomfort, and productive cough for more than a decade...
January 10, 2018: Journal of Medical Case Reports
https://www.readbyqxmd.com/read/29310745/polyps-grommets-and-eosinophilic-granulomatosis-with-polyangiitis
#8
F G Kavanagh, W Hasan, D A Smyth, J E Fenton
OBJECTIVE: To explore the link between nasal polyposis, refractory otitis media with effusion and eosinophilic granulomatosis with polyangiitis. METHODS: A retrospective observational study was carried out of patients diagnosed with refractory otitis media with effusion necessitating grommet insertion and who had nasal polyps. Patients were evaluated to determine if they fulfilled the diagnostic criteria of eosinophilic granulomatosis with polyangiitis. RESULTS: Sixteen patients (10 males and 6 females) were identified...
January 9, 2018: Journal of Laryngology and Otology
https://www.readbyqxmd.com/read/29310378/isolated-cerebral-aspergillosis-in-an-immunocompetent-woman-on-treatment-for-bacterial-infected-necrotizing-pancreatitis-a-case-report
#9
Shaoyang Zhang, Qinghui Fu, Qi Chen, Ting-Bo Liang
RATIONALE: Cerebral aspergillosis (CA) is a rare manifestation of invasive aspergillosis. It usually affects seriously immunocompromised hosts. Pancreatic bacterial or/and fungal infection is common in patients with severe acute pancreatitis. PATIENT CONCERNS: We report the first case of an immunocompetent woman with infected necrotizing pancreatitis due to multidrug resistant Acinetobacter baumannii who, in the course of treatment, developed isolated CA. DIAGNOSES: Magnetic resonance imaging, rather than computed tomography, revealed latent homolateral sinus disease-the possible source of the Aspergillus infection...
December 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/29306235/expression-profiles-of-cd11b-galectin-1-beclin-1-and-caspase-3-in-nasal-polyposis
#10
Alper Dilci, Nuray Varol, İlker Kılıçcıoğlu, Ece Konac, Utku Aydil, Yusuf Kızıl, Sabri Uslu
Background/aim: Nasal polyposis is a chronic inflammatory disease affecting the paranasal sinuses and nasal mucosae. It is thought that genetic and molecular mechanisms in inflammatory and apoptotic pathways are the main factors in the etiopathogenesis of nasal polyposis. The aim of this study was to investigate the expression patterns of CD11b, galectin-1, beclin-1, and caspase-3 in nasal polyps.Materials and methods: The mRNA expression levels of CD11b, galectin-1, beclin-1, and caspase-3 protein and western blot analysis of caspase-3 protein were evaluated in inferior turbinate mucosae and nasal polyp tissues...
December 19, 2017: Turkish Journal of Medical Sciences
https://www.readbyqxmd.com/read/29304130/computed-tomography-based-volumetric-tool-for-standardized-measurement-of-the-maxillary-sinus
#11
Guilherme Giacomini, Ana Luiza Menegatti Pavan, João Mauricio Carrasco Altemani, Sergio Barbosa Duarte, Carlos Magno Castelo Branco Fortaleza, José Ricardo de Arruda Miranda, Diana Rodrigues de Pina
Volume measurements of maxillary sinus may be useful to identify diseases affecting paranasal sinuses. However, literature shows a lack of consensus in studies measuring the volume. This may be attributable to different computed tomography data acquisition techniques, segmentation methods, focuses of investigation, among other reasons. Furthermore, methods for volumetrically quantifying the maxillary sinus are commonly manual or semiautomated, which require substantial user expertise and are time-consuming...
2018: PloS One
https://www.readbyqxmd.com/read/29303136/role-of-anatomic-variations-of-paranasal-sinuses-on-the-prevalence-of-sinusitis-computed-tomography-findings-of-350-patients
#12
M Kaya, F Çankal, M Gumusok, N Apaydin, I Tekdemir
OBJECTIVE: The aim of this study was to determine the frequency of anatomic variations of the paranasal sinuses and their roles in the development of sinusitis. MATERIALS AND METHODS: Computed tomography of paranasal sinuses of 350 patients was assessed in terms of anatomic variations and inflammatory sinus pathology. The coexistence of anatomic variations with sinusitis was statistically investigated. RESULTS: At least one anatomical variation of paranasal sinuses was detected in 325 patients (92...
November 2017: Nigerian Journal of Clinical Practice
https://www.readbyqxmd.com/read/29301819/giant-meningioma-in-paranasal-sinuses-an-atypical-nasal-occupation
#13
Diana Pinto Silva, Sofia Daniela Carvalho, Nuno Marçal, Luis Dias
No abstract text is available yet for this article.
January 4, 2018: BMJ Case Reports
https://www.readbyqxmd.com/read/29301179/glomangiopericytoma-of-the-spinal-cord
#14
Sung Shik Kang, Hee Seok Jeong, Hee Young Son, Tae Yong Moon
Glomangiopericytoma, also referred to as a hemangiopericytoma-like tumor or sinonasal type hemangiopericytoma, is a rare tumor of the nasal cavity and paranasal sinus that has never been reported in the spinal cord. Here, we report a case of a 47-year-old man who developed glomangiopericytoma in the thoracic spine. This lesion showed a heterogeneous high signal intensity compared to the spinal cord on a T2-weighted image and an easily enhanced isointense signal on a T1-weighted image.
December 2017: Korean Journal of Spine
https://www.readbyqxmd.com/read/29297269/about-polypoid-change-of-the-middle-turbinate-and-paranasal-sinus-polyposis-are-distinct-entities
#15
Hyun Jin Min, Kyung Soo Kim
No abstract text is available yet for this article.
January 2018: Otolaryngology—Head and Neck Surgery
https://www.readbyqxmd.com/read/29297268/in-response-to-polypoid-change-of-the-middle-turbinate-and-paranasal-sinus-polyposis-are-distinct-entities
#16
Jacob P Brunner, Basit A Jawad, Edward D McCoul
No abstract text is available yet for this article.
January 2018: Otolaryngology—Head and Neck Surgery
https://www.readbyqxmd.com/read/29287024/low-dose-noncontrast-examination-of-the-paranasal-sinuses-using-volumetric-computed-tomography
#17
Berhan Pirimoglu, Recep Sade, Muhammed Sedat Sakat, Hayri Ogul, Akin Levent, Mecit Kantarci
OBJECTIVES: The objective of this study was to evaluate image quality of low dose in noncontrast paranasal sinus computed tomography (CT) using single volumetric 320-row multidetector CT technique. METHODS: The low-dose protocol including tube voltage of 135 kV and tube current of 5 mAs was chosen based on results of the present phantom study. Forty-six patients were assigned to control group with factory standard settings (120 kVp, 75 mAs), and 46 patients were assigned to study group and underwent noncontrast CT of paranasal sinus with low-dose protocol using single volumetric 320-row multidetector CT device...
December 28, 2017: Journal of Computer Assisted Tomography
https://www.readbyqxmd.com/read/29283944/a-giant-osteoma-of-the-ethmoid-sinus
#18
Tatsuyuki Ishii, Yoshiaki Sakamoto, Tomoru Miwa, Kazunari Yoshida, Kazuo Kishi
Osteomas are slow-growing, benign bony tumors. Most are asymptomatic. Paranasal sinus osteoma in the pediatric population is rare; hence, there are few reports of symptomatic osteomas. The authors report the case of a giant ethmoid sinus osteoma in an 11-year-old girl who presented with diplopia and proptosis. Total excision and reconstruction of the medial orbital wall were performed via a coronal approach. The postoperative period was uneventful, the child's vision improved, and a good cosmetic result was obtained...
December 27, 2017: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/29283943/can-tumor-size-be-a-predictive-factor-of-olfactory-dysfunction-after-endoscopic-endonasal-trans-sphenoidal-approach
#19
Do Hyun Kim, Yong Kil Hong, Sin-Soo Jeun, Jae-Sung Park, Soo Whan Kim, Jin Hee Cho, Yong Jin Park, Jang-Won Jeong, Sung Won Kim
BACKGROUND AND OBJECTIVE: The aim of this study is to investigate the relationships between tumor size, nasal symptoms including olfactory function, and posoperative atrophic mucosal changes after the endoscopic endonasal transsphenoidal approach (EETSA). METHODS: This was a retrospective review of the medical records of 112 patients who underwent the 2 nostrils/4 hands EETSA with bilateral modified nasoseptal rescue flaps between February 2009 and January 2016...
December 27, 2017: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/29283942/destructive-fibrosarcoma-of-the-maxillary-sinus
#20
Adnan Ekinci, Duran Karataş, Abdurrahman Yetiş, Behice Hande Erenler, Muge Ozcan
Paranasal fibrosarcoma of nasal cavity and paranasal sinuses is a very rare malignant tumor. It is usually presented with nasal obstruction and epistaxis. In this clinical report, clinical symptoms, pathogenesis, and treatment principles of a paranasal fibrosarcoma originating from the right maxillary sinus and obstructing the right nasal passage are discussed.A 55-year-old male patient was admitted to the authors clinic with complaints of nasal obstruction and epistaxis lasting for 2 years. Anterior rhinoscopy revealed a mass lesion which obstructed the right nasal passage and caused frequent epistaxis...
December 27, 2017: Journal of Craniofacial Surgery
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