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CT scan of sinuses

Suheil Albert Atallah-Yunes, Jackson Clark, Shazia Samanani, Myat Soe
BACKGROUND Pituitary gland metastasis is rarely the initial presentation of metastatic cancer. Most cases of pituitary gland metastasis are asymptomatic with diabetes insipidus being the most common symptomatic presentation. It can rarely present with symptoms of hormone underproduction such as secondary adrenal insufficiency. Although pituitary gland metastasis is rare, it is underestimated, as it is commonly misdiagnosed with pituitary gland adenoma due to the lack of clear radiological criteria differentiating between both...
February 17, 2019: American Journal of Case Reports
Joana Caldeira Santos, Sara Pinto, Sofia Ferreira, Catarina Maia, Sandra Alves, Vinhas da Silva
OBJECTIVE: Characterize clinical features, epidemiology and treatment of hospitalized pediatric cases of preseptal and orbital cellulitis. METHODS: Retrospective study of children/adolescents admitted to a central hospital with preseptal and orbital cellulitis between 2007 and 2017. RESULTS: A total of 122 cases were included, 80.3% with preseptal cellulitis and 19.7% with orbital cellulitis. Patients had a median age of 5 years. Sinusitis was the most common predisposing factor (40...
February 7, 2019: International Journal of Pediatric Otorhinolaryngology
A Delvecchio, R Laforgia, M G Sederino, M Minafra, G Carbotta, G Balducci, G Fabiano, S Fedele, N Palasciano
AIM: We report a case of squamous carcinoma arising from a pilonidal sinus. CASE REPORT: Patient of 83 years old, that after 30 years had a recurrence of pilonidal sinus revealed by a sacral abscess studied with pelvic CT scan and MRI. After clinical investigation, traditional open surgical technique was performed and pathologic studies revealed a squamous carcinoma. The patient performed a new CT scan with persistence of disease, and a second surgical look with mass excision until the presacral fascia and V-Y flap was performed...
January 2019: Il Giornale di Chirurgia
Veronica C Wong, Grace Yung, Robert Russo, Stephen W Reddel, Robert Mansberg
A 34-year-old woman presented with a 3-month history of right-sided headaches associated with photophobia and pulsatile tinnitus. Investigations including lumbar puncture revealed elevated opening CSF pressure, increased protein, and presence of monocytosis consistent with an inflammatory/infective process. Brain MRI showed an area of thickened enhancing dura around the venous sinus posteriorly. Ga scintigraphy demonstrated focal intracranial uptake in the posterior occipital region, and biopsy confirmed a chronic inflammatory infiltrate with no granulomas...
February 8, 2019: Clinical Nuclear Medicine
Katherine Edmunds, Juan Gurria, George Koberlein, Ronine Zamor, Lesley Breech, Kara Shah, Selena Hariharan
A 2-year-old girl with a past medical history of cutaneous mastocytosis and eczema presented with 1 day of yellow-green, nonbloody vomiting, bradycardia, and listlessness. She was evaluated by her pediatrician and sent to the emergency department because of concern for dehydration. In the emergency department, she improved with fluid rehydration but still had decreased energy and bradycardia. Her electrocardiogram revealed sinus bradycardia, and laboratory results did not reveal any electrolyte abnormalities...
February 12, 2019: Pediatrics
Luan V Tran, Ngoc H Ngo, Alkis J Psaltis
BACKGROUND: To date, there are numerous studies documenting the prevalence of frontal recess cells, but only 1 study using the newly developed International Frontal Sinus Anatomical Classification (IFAC) system. The identification of the frontal cells and their influence on the frontal drainage pathway plays an important role in endoscopic frontal sinus surgery. OBJECTIVE: The aim of this study is to document the radiological prevalence of various types of frontal cells, as classified by IFAC and the most common frontal sinus drainage pathways based on its anatomic relationships with these cells...
February 13, 2019: American Journal of Rhinology & Allergy
Mindy Vroomen, Jules R Olsthoorn, Bart Maesen, Vladimir L'Espoir, Mark La Meir, Marco Das, Jos G Maessen, Harry J G M Crijns, Sander Verheule, Laurent Pison
OBJECTIVES: Epicardial adipose tissue volume (EAT-V) has been linked to atrial fibrillation (AF) recurrences after catheter ablation. We retrospectively studied the association between atrial EAT-V and outcome after hybrid AF ablation (epicardial surgical and endocardial catheter ablation). METHODS: On preoperative cardiac computed tomography angiography scans, the left atrium and right atrium were manually delineated using the open source ImageJ. With custom-made automated software, the number of pixels in the regions of interest on each slice was calculated...
February 11, 2019: European Journal of Cardio-thoracic Surgery
Ya Qiong Zhang, Xue Bing Yan, Yuan Meng, Ya Ning Zhao, Deng Gao Liu
OBJECTIVE: To analyse the anterior extension of the maxillary sinus, distribution of the sinus septa and vertical relationship between the maxillary sinus and molar roots using cone beam computed tomography (CBCT). METHODS: Imaging data of 970 consecutive patients who underwent CBCT scans were retrospectively collected. The anterior border, septa distribution of the maxillary sinus and relationship between the maxillary sinus and molar roots were analysed. The root-sinus relationship was divided into three types; the roots protruding into the sinus or touching the floor without a bony barrier was defined as Type I root-sinus relationship...
2019: Chinese Journal of Dental Research
Hiroshi Nawashiro, Tomoki Nawashiro, Ayako Nawashiro
Meningiomas extended to the scalp without any bony changes are rare. A 79-year-old man presented with a large subcutaneous mass in the midline parieto-occipital region and progressive right hemiparesis. The contrast-enhanced millimetric computed tomography scans of the head showed the intracranial parasagittal enhanced mass invading the superior sagittal sinus, and the subcutaneous mass without any bony destructive, osteoblastic or osteolytic changes. Under the operative microscope, no visible communication was found between the intracranial and extracranial mass lesions...
February 8, 2019: World Neurosurgery
Daniele Gibelli, Michaela Cellina, Stefano Gibelli, Annalisa Cappella, Antonio Giancarlo Oliva, Giovanni Termine, Claudia Dolci, Chiarella Sforza
PURPOSE: Anatomy of sphenoid sinuses has acquired a growing importance with the diffusion of transsphenoidal surgical procedures. A common risk in these practices is the damage of internal carotid artery (ICA) and optic nerve (ON), which may protrude into the sphenoid air cavities. This study aims at analysing the relationships between sphenoid sinuses volume and protrusion of ICA and ON. METHODS: 260 head CT-scans were retrospectively analysed (equally divided among males and females, age range 20-92 years)...
February 9, 2019: Surgical and Radiologic Anatomy: SRA
Andy Wai Kan Yeung, Nicolas Colsoul, Carla Montalvao, Kuofeng Hung, Reinhilde Jacobs, Michael M Bornstein
OBJECTIVES: This retrospective study evaluated the visibility, location, and morphology of the primary maxillary ostium (PMO), as well as the presence and number of accessory maxillary ostia (AMO) in the maxillary sinus using cone beam computed tomography (CBCT). MATERIALS AND METHODS: CBCT scans with a large field of view with both maxillary sinuses entirely visible, acquired from February 2016 to February 2018, were initially screened. Patients were included if there was no history of surgical intervention/trauma in the sinus region...
February 9, 2019: Clinical Oral Investigations
David W Jang, Cecily Abraham, Derek D Cyr, Kristine Schulz, Ralph Abi Hachem, David L Witsell
BACKGROUND: In-office balloon sinus dilation (BSD) has recently gained popularity as a surgical treatment option for chronic rhinosinusitis (CRS). However, utilization, indications, and practice patterns surrounding in-office BSD remain unclear. OBJECTIVE: The purpose of this study was to use a large national administrative database to assess preoperative management of CRS prior to in-office BSD. METHODS: Patients undergoing standalone in-office BSD from 2011 to 2014 were identified on MarketScan and compared to a control group undergoing functional endoscopic sinus surgery (FESS)...
February 7, 2019: American Journal of Rhinology & Allergy
Murat Icen, Kaan Orhan
PURPOSE: The aim of this study was to investigate the detailed anatomy of the pterygomaxillary fissure (PMF) and pterygopalatine fossa (PPF) and variations therein using three-dimensional (3D) cone-beam computed tomography (CBCT) software. METHODS: This study was based on a retrospective evaluation of CBCT scans. A total of 825 CBCT images of patients (448 females, 377 males) who met the inclusion criteria were analyzed. PMF shapes were classified, and morphometric measurements (PMF area and PPF volume) were performed according to age, right/left side, and gender using 3D rendering programs...
February 6, 2019: Surgical and Radiologic Anatomy: SRA
Dongyun Zhang, Sarah S R Kim, Daniel F Kelly, Sylvia L Asa, Masoud Movassaghi, Sergey Mareninov, William H Yong, Timothy F Cloughesy, Fausto J Rodriguez, Paul McKeever, Jiang Qian, Jian Yi Li, Qinwen Mao, Kathy L Newell, Richard M Green, Cynthia T Welsh, Zhenggang Xiong, Anthony P Heaney
Context: Neurocytoma (NC) is a rare low grade tumor of the central nervous systems with a 10-year survival of 90% and local control rate of 74%. However 25% of NCs are atypical with an elevated Ki-67 labeling index >2%, and exhibit a more aggressive course with high propensity for local recurrence and/or craniospinal dissemination. Although no standard treatment regimen exists for these atypical cases, adjuvant stereotactic or conventional radiotherapy and/or chemotherapy are typically offered but yield inconsistent results...
February 5, 2019: Journal of Clinical Endocrinology and Metabolism
Sigrun Skaar Holme, Jon Magnus Moen, Karin Kilian, Hilde Haukeland, Øyvind Molberg, Heidi B Eggesbø
BACKGROUND: Even though progressive rhinosinusitis with osteitis is a major clinical problem in granulomatosis with polyangiitis (GPA), there are no studies on how GPA-related osteitis develops over time, and no quantitative methods for longitudinal assessment. Here, we aimed to identify simple and robust CT-based methods for capture and quantification of time-dependent changes in GPA-related paranasal sinus osteitis and compare performance of the methods under study in a largely unselected GPA cohort...
February 4, 2019: BMC Medical Imaging
Badria AlKhudair, Abdulrahman AlKhatib, Ghaleb AlAzzeh, Ali AlMomen
INTRODUCTION: Dentigerous cysts are the second most common form of benign odontogenic cysts. These cysts are commonly single lesions. Bilateral and multiple dentigerous cysts are very rare. CASE PRESENTATION: This article presents a rare case report of bilateral dentigerous cysts associated with two ectopic teeth located atypically in the maxillary sinuses in a 19-year-old male manifesting as bilateral upper jaw pain, post-nasal discharge and recurrent sinusitis which was managed via the endonasal endoscopic approach by enucleation of the cysts and teeth removal...
January 29, 2019: International Journal of Surgery Case Reports
Susanne Lewin, Christopher Riben, Andreas Thor, Caroline Öhman-Mägi
PURPOSE: Cone beam computed tomography (CBCT) is an important imaging technique in maxillofacial evaluations. However, application-specific image analysis methods aimed at extracting quantitative information from these images need to be further developed. The aim of this study was to provide a robust and objective method that could assess radiologic changes around dental implants after sinus elevation surgery with simultaneous implant placement. MATERIALS AND METHODS: The study was performed retrospectively on patients fulfilling the inclusion criteria...
February 4, 2019: International Journal of Oral & Maxillofacial Implants
Keng-Chung Shen, Yi-Tsen Lin, Chih-Feng Lin, Chin-Hao Chang, Te-Huei Yeh
BACKGROUND: The role of allergy in the development of chronic rhinosinusitis (CRS) in East Asians is not clear. AIMS/OBJECTIVES: The aim was to investigate the impact of allergies in the clinical characteristics of chronic rhinosinusitis. MATERIAL AND METHODS: A total of 138 CRS patients who underwent endoscopic sinus surgery were included. A brief history of rhinosinusitis symptoms, blood eosinophil count, blood-specific allergen tests, computed tomography (CT) scan findings, Lund-Mackay (LM) CT scores, and Sino-Nasal Outcome Test (SNOT-22) Questionnaire scores, and sinoscopy findings at 3 and 6 months postoperatively...
February 2, 2019: Acta Oto-laryngologica
Chen Zhang, Robin Bruggink, Frank Baan, Ewald Bronkhorst, Thomas Maal, Hong He, Edwin M Ongkosuwito
Background: Three-dimensional (3D) modeling of the nasal airway space is becoming increasingly important for assessment in breathing disorders. Processing cone beam computed tomography (CBCT) scans of this region is complicated, however, by the intricate anatomy of the sinuses compared to the simpler nasopharynx. A gold standard for these measures also is lacking. Previous work has shown that software programs can vary in accuracy and reproducibility outcomes of these measurements. This study reports the reproducibility and accuracy of an algorithm, airway segmentor (AS), designed for nasal airway space analysis using a 3D printed anthropomorphic nasal airway model...
2019: PeerJ
Peter Papagiannopoulos, Anish Raman, Courtney Miller, Miral Jhaveri, Ritu Ghai, Inna Husain
Laryngeal paragangliomas are rare lesions originating from paraganglion cells within the supraglottis or subglottis. As per the latest review, only 76 such cases have been reported in the literature. Symptoms typically include dysphonia or dysphagia. We present, to the best of our knowledge, the first known case of laryngeal paraganglioma with chronic cough as the primary complaint. A 77-year-old male presented with chronic cough. Flexible laryngoscopy revealed a supraglottic submucosal mass emanating from the region of the right false vocal cord and aryepiglottic fold...
December 2018: Turkish Archives of Otorhinolaryngology
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