33,491 results match your criteria Paranasal Sinuses

Three-dimensional linear and volumetric computed tomography analysis of the frontal sinus.

Anat Cell Biol 2022 Jun;55(2):142-147

Department of Anatomy, Research Institute of Medical Science, Konkuk University School of Medicine, Seoul, Korea.

The frontal sinus is one of the four paranasal sinuses in humans, and knowledge of its anatomy is important when performing surgery involving the frontal bone or sinus. Although many studies have measured the frontal sinus using radiography and computed tomography (CT), few studies have evaluated by using three-dimensional (3D) analysis. The purpose of this study was to analyze the frontal sinus using 3D reconstruction analysis and determine the differences in linear and volumetric measurements between sexes, sides, and ages. Read More

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Characterization of fungus ball CT-hyperdensities within maxillary and sphenoid sinuses.

Dentomaxillofac Radiol 2022 Jun 28:20180384. Epub 2022 Jun 28.

Department of Otorhinolaryngology-Head and Neck Surgery, University Hospital of Bordeaux, Bordeaux, France.

Objectives: CT-Scan hyperdensities are described in more than 60% of all paranasal sinus fungus ball cases. Two types can be distinguished according to their density: calcium and metal types. We aimed to establish the prevalence and density of the hyperdensities observed in sphenoid and maxillary sinus fungus ball and their relation to dental factors. Read More

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Radiographic and Clinical Analysis of Cranio-Maxillofacial Complications of Cavernous Sinus Thrombosis Among 256 COVID-19 Patients.

J Craniofac Surg 2022 Jun 27. Epub 2022 Jun 27.

Tashkent Medical Academy.

Background: A heavy burden of cranio-maxillofacial complications may be encountered in corona virus disease-2019 patients due to the associated coagulopathy and inflammatory consequences of the disease. This study aims to describe clinical and radiographic features of these complications in 256 patients who developed 1 or more of the following complications: cavernous sinus thrombosis, osteomyelitis or necrosis of the jaws.

Methods: Clinical assessment of cranial nerve function and general clinical assessment were performed. Read More

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Nasosinusal chondrosarcoma with orbito-cerebral extension.

J Surg Case Rep 2022 Jun 22;2022(6):rjac286. Epub 2022 Jun 22.

Otorhinolaryngology and Head and Neck Surgery Department, Mohammed VI University Hospital of Oujda, Oujda, Morocco.

Chondrosarcoma is a highly aggressive malignant tumor originating from cartilaginous and mesenchymal tissues. The aim of this report is to describe a rare case of nasosinusal chondrosarcoma with orbito-cerebral extension. Our patient was a 55-year-old with a right cheek swelling evolving over a year, with unilateral right nasal obstruction gradually becoming bilateral associated with hyposmia, bilateral exophthalmos, reduced bilateral deep visual acuity and permanent headaches. Read More

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Extent of craniofacial fungal osteomyelitis in a ketoacidotic patient may predict optic nerve involvement: A case report.

Int J Surg Case Rep 2022 Jun 13;96:107299. Epub 2022 Jun 13.

Department of Head and Neck Surgery, Facial Plastic and Reconstructive Surgery, University of Texas Rio Grande Valley, United States of America.

Introduction: Mucormycosis is an opportunistic mycosis common in poorly-controlled insulin dependent diabetic patients particularly with ketoacidosis. Fungal osteomyelitis is a life-threatening condition affectation of the nose and paranasal sinuses within the orofacial region.

Presentation Of Case: We present a 63-year-old diabetic male patient with maxillary mucormycotic osteomyelitis threatening his better seeing eye and review the clinical symptoms, relevant imaging, and management. Read More

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Endoscopic endonasal retrieval of air gun pellet retained in the frontal sinus: A case report.

Int J Surg Case Rep 2022 Jun 6;96:107280. Epub 2022 Jun 6.

Department of Otolaryngology-Head and Neck Surgery, King Faisal Specialist Hospital and Research Centre, Riyadh, Saudi Arabia.

Introduction And Importance: Foreign bodies in paranasal sinuses are rarely encountered and most commonly present in the maxillary sinus. Guidelines for managing paranasal sinus object removal are limited due to its rarity. However, there are three major management options: open surgery, endoscopic sinus surgery, and observation. Read More

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Analysis of neutrophil functional activity in patients with chronic polyposis rhinosinusitis after treatment with interferon gamma.

Klin Lab Diagn 2022 Jun;67(6):339-344

Penza Institute for Further Training of Physicians - Branch Campus of the Federal State Budgetary Educational Institution of Further Professional Education «Russian Medical Academy of Continuing Professional Education» of the Ministry of Healthcare of the Russian Federation.

Chronic polyposis rhinosinusitis (CPRS) is an inflammatory disease of the nose and paranasal sinuses, accompanied by the formation and recurrent growth of polyps. PDRS is an urgent medical problem, because it is difficult to treat and is accompanied by constant exacerbations. The important role of neutrophil granulocytes in the pathogenesis of CPRS has been proved, as they are the first line of defense in response to tissue damage and active participants in the pathological process. Read More

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Presurgical olfactory function as an indicator of the outcome of functional endoscopic sinus surgery in chronic rhinosinusitis with nasal polyps.

Eur Arch Otorhinolaryngol 2022 Jun 24. Epub 2022 Jun 24.

Smell and Taste Clinic, Department of Otorhinolaryngology, TU Dresden, Dresden, Germany.

Introduction: Chronic rhinosinusitis with nasal polyps (CRSwNP) often leads to impaired olfactory function and reduced quality of life. When conservative treatments such as nasal irrigation and topical steroids fail, functional endoscopic sinus surgery (FESS) is often necessary, because it improves symptoms and enhances quality of life.

Materials And Methods: A total of 88 patients was included in this prospective study. Read More

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Volumetric Assessment of the Frontal Sinus in Female Adolescents and Its Relationship with Craniofacial Morphology and Orthodontic Treatment: A Pilot Study.

Int J Environ Res Public Health 2022 Jun 14;19(12). Epub 2022 Jun 14.

Department of Orthodontics and Dentofacial Orthopedics, Tokushima University Graduate School of Biomedical Sciences, Tokushima 770-8504, Japan.

The present study aimed to evaluate the correlation between frontal sinus morphology and craniofacial morphology, and to investigate the effects of orthodontic treatment on the development of the frontal sinus in female adolescents (mean age: 13.9 ± 1.3 years). Read More

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Chronic Rhinosinusitis, Biofilm and Secreted Products, Inflammatory Responses, and Disease Severity.

Biomedicines 2022 Jun 9;10(6). Epub 2022 Jun 9.

Adelaide Medical School, Faculty of Health and Medical Sciences, The University of Adelaide, Adelaide 5000, Australia.

Chronic rhinosinusitis (CRS) is a persistent inflammation of the nasal cavity and paranasal sinuses associated with tissue remodelling, dysfunction of the sinuses' natural defence mechanisms, and induction of different inflammatory clusters. The etiopathogenesis of CRS remains elusive, and both environmental factors, such as bacterial biofilms and the host's general condition, are thought to play a role. Bacterial biofilms have significant clinical relevance due to their potential to cause resistance to antimicrobial therapy and host defenses. Read More

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Aggressive juvenile ossifying fibroma of the ethmoid sinus with orbital and intracranial extension: A case report.

Int J Surg Case Rep 2022 Jun 1;96:107255. Epub 2022 Jun 1.

Department of ENT, North Medical Tower, Arar, Saudi Arabia.

Background: Juvenile ossifying fibroma is a rare benign destructive lesion of nose and paranasal sinuses. It occurs in the craniofacial bones of children below 15 years of age. It is usually discovered in the mandible and maxilla and rarely in the paranasal sinuses. Read More

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Endoscopic Management of Recurrent Maxillary Sinus Ameloblastoma in a Child With Autism Spectrum Disorder: A Case Report.

Ear Nose Throat J 2022 Jun 23:1455613221106218. Epub 2022 Jun 23.

Department of Otolaryngology, 74713Lanzhou University Second Hospital, Lanzhou, PR China.

Ameloblastomas are slow-growing, aggressive odontogenic epithelial tumors that originate from the jawbone. One of the most easily relapsing maxillofacial tumors, ameloblastomas mainly occur in the mandibular molar area and ascending branch, although they can occasionally occur in the nasal cavity and paranasal sinuses. A 14-year-old child with autism spectrum disorder underwent sinus computed tomography (CT) under anesthesia. Read More

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Diagnostic usefulness of cone-beam computed tomography versus multi-detector computed tomography for sinonasal structure evaluation.

Laryngoscope Investig Otolaryngol 2022 Jun 30;7(3):662-670. Epub 2022 Mar 30.

Department of Otolaryngology Ajou University Hospital, Ajou University School of Medicine Suwon Republic of Korea.

Objective: Cone-beam computed tomography (CBCT) is a promising imaging modality for sinonasal evaluation, with advantages of relatively low radiation dose, low cost, and quick outpatient imaging. Our study aimed to compare the diagnostic performance and image quality of CBCT with those of multi-detector computed tomography (MDCT) with different slice thickness.

Methods: We retrospectively reviewed 60 consecutive patients who had undergone both CBCT and MDCT. Read More

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Congenital Teratocarcinosarcoma With Gene Mutation Presenting as an Ocular Mass.

Pediatr Dev Pathol 2022 Jun 22:10935266221111127. Epub 2022 Jun 22.

609162Al Qassimi Women's and Children's Hospital, Sharjah, United Arab Emirates.

Teratocarcinosarcoma is an extremely rare malignancy of the nasal cavity and paranasal sinuses. It exhibits both sarcomatous and carcinomatous components. Less than 100 cases are reported. Read More

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[Aging nose (presbinasalis) in the practice of an otorhinolaryngologist.]

Adv Gerontol 2022 ;35(2):308-314

I.P.Pavlov First Saint-Petersburg State Medical University, 6-8 L. Tolstoy str., St. Petersburg 197022, Russian Federation, e-mail:

Population aging, increasing in duration of active life dictate to keep the level of health and create conditions for prolongation and preservation of ability to work. An otorhinolaryngologist often has to deal with age-related changes occurring in the nasal cavity and paranasal sinuses. The study of age-related features occurring in the nasal cavity and paranasal sinuses at the level of not only function, but also structures providing maintenance of mucous membrane protective mechanisms, preserving nasal architectonics, becomes a topical issue. Read More

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Solitary Sphenoid Sinus Lesion Presenting as Chronic Headache.

J Craniofac Surg 2022 May;33(3):886-888

Department of Otolaryngology-Head and Neck Surgery, Kosin University College of Medicine, Busan, South Korea.

Background And Objectives: Headache is a common symptom with etiologies that are difficult to distinguish, 1 of which is sinusitis. A solitary sphenoid lesion, which is rare, can also cause acute or chronic headaches. The authors investigated whether endoscopic sinus surgery (ESS) for solitary sphenoid lesions could reduce headache symptoms. Read More

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Adverse Events Associated With Image-Guided Sinus Navigation in Endoscopic Sinus Surgery: A MAUDE Database Analysis.

Otolaryngol Head Neck Surg 2022 Jun 21:1945998221107547. Epub 2022 Jun 21.

Tina and Rick Caruso Department of Otolaryngology-Head and Neck Surgery, Keck School of Medicine of the University of Southern California, Los Angeles, California, USA.

Objective: The utilization of image-guided navigation during endoscopic sinus surgery (ESS) has increased significantly since its introduction. However, the most common associated complications are still unknown. This study describes and analyzes adverse events related to image-guided ESS. Read More

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Maxillary sinus aeration analysis using computational fluid dynamics.

Sci Rep 2022 Jun 20;12(1):10376. Epub 2022 Jun 20.

Department of Otolaryngology, Medical University of Gdansk, Gdansk, Poland.

The maxillary sinus aeration using the computational fluid dynamics (CFD) method based on individual adult patients' computed tomography (CT) scans were analyzed. The analysis was based on CT images of 4 patients: one with normal nose anatomy and three with nasal septal deviation (NSD) and concha bullosa (CB). The CFD simulation was performed using the Reynolds-Average Simulation approach and turbulence closure based on linear eddy viscosity supplemented with the two-equation k-[Formula: see text] SST model. Read More

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[Metachronous multiple carcinoma of bilateral maxillary sinus and lung: a case report].

Zhonghua Er Bi Yan Hou Tou Jing Wai Ke Za Zhi 2022 Jun;57(6):746-748

Department of Otorhinolaryngology Head and Neck Surgery, the Second Hospital of Jilin University, Changchun 130041, China.

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Exenterate or Not: A Simple Proposed Management Algorithm for Mucormycosis During the Era of COVID-19 in a Tertiary Eye Care Center in Egypt.

Clin Ophthalmol 2022 11;16:1933-1940. Epub 2022 Jun 11.

Department of Ophthalmology, Faculty of Medicine, Tanta University, Tanta, Gharbeya, Egypt.

Purpose: To construct a simple management algorithm for cases with orbital mucormycosis during the COVID-19 era.

Methods: Retrospective study included records of 30 Egyptian patients with post COVID-19 orbital mucormycosis. They underwent full clinical examination, laboratory investigations, Computed tomography (CT)/magnetic resonance imaging (MRI) of the paranasal sinuses and pathological specimen examination. Read More

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Isolated Fungal Sphenoid Sinusitis With Cavernous Sinus Thrombophlebitis: A Case Report.

Cureus 2022 May 16;14(5):e25034. Epub 2022 May 16.

Clinical Neurosciences, University of the East Ramon Magsaysay Memorial Medical Center, Quezon City, PHL.

Cavernous sinus thrombophlebitis is a rare, potentially life-threatening, condition that is most often caused by gram-negative bacteria and, to a lesser extent, fungi. is an opportunistic fungus that frequently affects patients with a weak immune system. We describe a case of an adult female without diabetes who developed sphenoid sinusitis causing cavernous sinus thrombophlebitis. Read More

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Is prophylactic neck irradiation indicated for patients with cN0 Adenoid cystic carcinoma of the paranasal sinuses?

Radiother Oncol 2022 Jun 16. Epub 2022 Jun 16.

Department of Radiotherapy, Eye Ear Nose and Throat Hospital, Shanghai Medical College, Fudan University, Shanghai, PR China. Electronic address:

Purpose: To study the prevalence of nodal metastases in sinonasal adenoid cystic carcinoma (SNACC) and to evaluate whether prophylactic neck irradiation (PNI) should be performed in patients with clinical N0 (cN0) disease.

Patients And Methods: Between April 1992 and November 2020, 166 patients with SNACC who had undergone radiotherapy at our department were retrospectively analyzed. The median follow-up time was 71. Read More

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Mandibular Osteoma in a Haflinger Mare: Clinical and Pathological Features.

J Equine Vet Sci 2022 Jun 16;116:104048. Epub 2022 Jun 16.

Faculty of Veterinary Medicine, Loc. Piano d'Accio, University of Teramo, Teramo, Italy.

A 11-year-old, Haflinger breed mare developed a slowly growing mass, protruding on the ventral aspect of the mandible. On palpation, the lesion was pedunculated, very firm, cold and not painful. Radiographic examinations showed a radiopaque, multi-lobular, "mushroom-like" lesion, which arose from the mandibular cortex without involving the bone marrow cavity. Read More

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Preoperative emobilisation of juvenile nasopharyngeal angiofibroma.

Am J Otolaryngol 2022 Jun 11;43(5):103532. Epub 2022 Jun 11.

ENT, Maulana Azad Medical College, India.

Introduction: Juvenile nasopharyngeal angiofibroma(JNA) are highly vascular benign tumours originating in the sphenopalatine fossa and may extend to the pterygopalatine fossa, paranasal sinuses, and nasal cavity. The management of JNA has evolved greatly with development of endoscopy. Treatment modality has changed from open approach to endoscopic approach due to various advantages offered by the endoscopic approach. Read More

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Ophthalmic Complications Associated with Zygomatic Complex Fractures: A Randomised Descriptive Clinical Study.

J Maxillofac Oral Surg 2022 Jun 3;21(2):386-395. Epub 2020 Sep 3.

Department of Oral and Maxillofacial Surgery, Vydehi Institute of Dental Sciences and Research Centre, Bangalore, India.

Background And Objectives: Trauma to the maxillofacial region is usually associated with varying degrees of disruption of the soft and hard tissues in the region and injuries to the neighbouring structures such as eyes, brain, nasal apparatus and paranasal sinuses. Injuries to the middle third of the face commonly destroys the integrity of the orbital skeleton, and are frequently complicated by injury to the eye, ranging between 2.7 and 67% as reported in the literature. Read More

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'Stenting the Lacrimal System in Modified Denker's for Mucormycosis: Really Needed!'-A Longitudinal Study.

J Maxillofac Oral Surg 2022 Jun 21;21(2):739-742. Epub 2022 Feb 21.

Dept of ENT and Head and Neck Surgery, Baroda Medical College, S.S.G. Hospital, M.S. University, Vadodara, Gujarat India.

Introduction: Recent advances in endoscopic paraphernalia have brought the once intricate anterior lateral wall of maxilla, within reach of the endoscopic surgeon. Endoscopic modified Denker's approach provides another route to reach the indiscernible sites of maxillary & other paranasal sinuses along with PPF (pterygo-palatine fossa)/ITF (infra-temporal fossa) region. This approach has been widely used Pan-India during the Post-Covid Mucormycosis Epidemic, in our country. Read More

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'Comparison and correlation of the maxillary sinus dimensions in various craniofacial patterns: A CBCT Study'.

F1000Res 2022 3;11:488. Epub 2022 May 3.

Professor, Department of Orthodontics and Dentofacial Orthopedics, A B Shetty Memorial Institute of Dental Sciences, Mangalore, Karnataka, 575018, India.

To compare and correlate the maxillary sinus dimensions and basal bone height among various facial patterns using CBCT for advanced diagnosis and treatment planning in Orthodontics. 66 CBCT images within age group of 18-30 years were divided into horizontal (Group 1), average (Group 2) and vertical (Group 3) facial growth patterns. Maxillary sinus dimensions were compared and correlated in all three groups. Read More

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Effects of platelet-rich fibrin on osteogenic differentiation of Schneiderian membrane derived mesenchymal stem cells and bone formation in maxillary sinus.

Cell Commun Signal 2022 Jun 15;20(1):88. Epub 2022 Jun 15.

Department of Oral Implantology, Hospital of Stomatology, Jilin University, Changchun, 130021, China.

Background: The existence of mesenchymal stem cells (MSCs) in Schneiderian membrane has not been determined. The aim of this study is to investigate whether there are MSCs in Schneiderian membrane, and the effect of platelet-rich fibrin (PRF) on osteogenic differentiation of these cells and on new bone formation in maxillary sinus after maxillary sinus floor elevation.

Methods: Schneiderian membrane derived mesenchymal stem cells (SM-MSCs) were isolated from rabbit maxillary sinus. Read More

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Ultra-Low-Dose Photon-Counting CT Imaging of the Paranasal Sinus With Tin Prefiltration: How Low Can We Go?

Invest Radiol 2022 May 6. Epub 2022 May 6.

From the Department of Diagnostic and Interventional Radiology, University Hospital Würzburg, Würzburg.

Objectives: In this study, we compared photon-counting detector computed tomography (PCD-CT) and energy-integrating detector computed tomography (EID-CT) for ultra-low-dose paranasal sinus examinations with employed tin prefiltration. The goal of our investigation was to define the most dose-effective scan protocols for diagnostic assessment of midface trauma, preoperative sinonasal anatomy, and acute rhinosinusitis.

Materials And Methods: Five cadaveric heads were examined with the standard-resolution scan mode of both CT systems using a tube potential of 100 kV and tin prefiltration for 7 dose-equivalent scan protocols (CTDIvol = 4. Read More

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NK- and T-cell lymphoma of the nasal cavity and paranasal sinuses in Denmark 1980-2017: a nationwide cohort study.

Leuk Lymphoma 2022 Jun 14:1-10. Epub 2022 Jun 14.

Eye Pathology Section, Department of Pathology, Rigshospitalet, University of Copenhagen, Copenhagen, Denmark.

Compared to Asian and Latin American populations, sinonasal NK- or T-cell lymphoma is rare in Europe. All patients with sinonasal NK- or T-cell lymphoma in Denmark from 1980 to 2017 were validated histologically, and the disease behavior and demographics were extracted from medical records and national registries. Prognostic factors associated with mortality were determined using survival statistics. Read More

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