keyword
MENU ▼
Read by QxMD icon Read
search

Paranasal sinus

keyword
https://www.readbyqxmd.com/read/29155535/an-interesting-case-of-oral-inverted-ductal-papilloma
#1
Natasha Berridge, Mahesh Kumar
Ductal papillomas are rare benign papillary tumours of the minor salivary glands. Previously they have been classified into three subtypes: inverted ductal papilloma (IDP), sialadenoma papilliferum and intraductal papilloma. The oral inverted ductal papilloma is the least common of these lesions, with 48 cases reported to date in a search of the English-language literature. We describe an interesting case of oral IDP and highlight the pertinent clinical and histopathological features. Importantly, unlike the histologically similar inverted papilloma (IP) of the nose and paranasal sinuses, oral IDP is a completely benign lesion and is not associated with malignant change...
December 2016: Dental Update
https://www.readbyqxmd.com/read/29137081/sinonasal-undifferentiated-carcinoma-originating-from-inverted-papilloma-a-case-report
#2
Jong Seung Kim, Ki Hwan Hong, Kyu Yun Jang, Jong Hoon Song
RATIONALE: Sinonasal inverted papilloma (IP) is a locally aggressive tumor found in the schneiderian membrane, lining the nasal cavity and paranasal sinuses. PATIENT CONCERNS: We report a case of a 63-year-old woman with undifferentiated carcinoma (UC) arising in an IP in the left maxillary sinus. DIAGNOSES: The preoperative diagnosis was IP of the maxillary sinus. INTERVENTIONS: We performed endoscopic medial maxillectomy to remove the remnant mass in the left maxillary sinus...
November 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/29134827/serum-plasma-and-saliva-biomarkers-for-head-and-neck-cancer
#3
Lidia Maria Rebolho Batista Arantes, Ana Carolina de Carvalho, Matias Eliseo Melendez, André Lopes Carvalho
Head and neck squamous cell carcinoma (HNSCC) encompasses tumors arising from several locations (oral and nasal cavities, paranasal sinuses, salivary glands, pharynx, and larynx) and currently stands as the sixth most common cancer worldwide. The most important risk factors identified so far are tobacco and alcohol consumption, and, for a subgroup of HNSCCs, infection with high-risk types of human papillomavirus (HPV). Despite several improvements in the treatment of these tumors in the last decades, overall survival rates have only improved marginally, mainly due to the advanced clinical stage at diagnosis and the high rates of treatment failure associated with this late diagnosis...
November 14, 2017: Expert Review of Molecular Diagnostics
https://www.readbyqxmd.com/read/29134167/postoperative-imaging-findings-associated-with-transpalpebral-craniotomy-approach-to-anterior-cranial-fossa
#4
Dennis Monks, Allison Weyer, Peter Thurlow, Khaled Aziz, Erik Happ, Michael Goldberg
Background and Purpose  The transpalpebral "eyelid" approach is a novel alternative to the traditional ciliary or supraciliary incision for supraorbital frontal craniotomy and access to the anterior cranial fossa. Though a prior publication from our institution has described the surgical approach in detail along with cosmetic and clinical outcomes, postoperative imaging findings have not yet been described. As this surgical technique becomes more widely practiced, it is essential for neuroradiologists, oculoplastic surgeons, and skull base neurosurgeons to be familiar with the expected postoperative imaging findings, especially those that prompt subsequent intervention...
December 2017: Journal of Neurological Surgery. Part B, Skull Base
https://www.readbyqxmd.com/read/29134165/an-innovate-robotic-endoscope-guidance-system-for-transnasal-sinus-and-skull-base-surgery-proof-of-concept
#5
D T Friedrich, F Sommer, M O Scheithauer, J Greve, T K Hoffmann, P J Schuler
Objective  Advanced transnasal sinus and skull base surgery remains a challenging discipline for head and neck surgeons. Restricted access and space for instrumentation can impede advanced interventions. Thus, we present the combination of an innovative robotic endoscope guidance system and a specific endoscope with adjustable viewing angle to facilitate transnasal surgery in a human cadaver model. Materials and Methods  The applicability of the robotic endoscope guidance system with custom foot pedal controller was tested for advanced transnasal surgery on a fresh frozen human cadaver head...
December 2017: Journal of Neurological Surgery. Part B, Skull Base
https://www.readbyqxmd.com/read/29131135/interhemispheric-and-infratentorial-subdural-empyema-with-preseptal-cellulitis-as-complications-of-sinusitis-a-case-report
#6
Muhammad Reza Arifianto, Achmad Zuhro Ma'ruf, Arie Ibrahim, Abdul Hafid Bajamal
Intracranial complications of paranasal sinusitis have become rare due to the use of antibiotics nowadays. However, several cases have been reported due the ability of paranasal sinusitis to cause serious complications. Once the infection spreads over the cranial structure, it could infect the orbits, underlying bones, meninges, adjacent veins, and brain. Subdural empyema is a rare but potentially life-threatening complication following paranasal sinusitis and should be considered as a neurological emergency...
November 11, 2017: Pediatric Neurosurgery
https://www.readbyqxmd.com/read/29115522/role-of-epigenetics-in-the-pathogenesis-of-chronic-rhinosinusitis-with-nasal-polyps
#7
Jong-Yeup Kim, Dong-Kyu Kim, Myeong Sang Yu, Min-Ji Cha, Seong-Lan Yu, Jaeku Kang
Chronic rhinosinusitis (CRS) is a highly prevalent disease characterized by mucosal inflammation of the nose and paranasal sinuses. CRS can be divided into two main categories, CRS with nasal polyps (NPs; CRSwNP) and CRS without NPs (CRSsNP). Although the pathophysiology of CRS remains unclear, DNA methylation has been implicated in the etiology of CRSwNP. The aim of the present study was to elucidate whether DNA methylation of specific genes is involved in the development of NPs. In total, 18 individuals were included in the present study, and were divided into three groups: CRSwNP (n=7), CRSsNP (n=7) and healthy controls (n=4)...
November 7, 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/29115519/pten-promotes-apoptosis-of-h2o2%C3%A2-injured-rat-nasal-epithelial-cells-through-pi3k-akt-and-other-pathways
#8
Minghui Jia, Xiaoyun Chen, Jili Liu, Jun Chen
Chronic rhinosinusitis (CRS) is a form of chronic inflammation of the nasal cavity and paranasal sinus with multi‑causal pathogenesis, including oxidative stress. Several lines of evidence have demonstrated that the phosphatase and tensin homolog gene (PTEN) can inhibit the activation of phosphoinositide 3‑kinase (PI3K) to affect phosphorylation of Akt. Importantly, the PI3K/PTEN/Akt signaling pathway is associated with various types of tumors, chronic inflammatory diseases, and autoimmune disease through its regulation of cell growth, apoptosis, proliferation, and metabolism...
October 26, 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/29114305/frontal-mucocele-mimicking-a-frontal-subcutaneous-tumor
#9
Ellath Valappil Bijith, Shaju Mathew, Krishnaswamy Mahadevan
Mucoceles are chronic, expanding, mucosa lined pathology of the paranasal sinuses. Frontal mucocele usually presents with the visual complaints such as diplopia, diminution of vision, visual field defect, ptosis, orbital swelling, retro-orbital pain, displacement of eye globe, and proptosis. Very rarely, it can be present as a subcutaneous swelling. This article presents a 58-year-old male patient presenting with an asymptomatic periorbital swelling and a painless forehead mass of 3 years duration. There was a partial ptosis, and an elongated, soft, subcutaneous mass over the forehead...
October 2017: Asian Journal of Neurosurgery
https://www.readbyqxmd.com/read/29105487/high-pitch-dual-source-paranasal-sinus-ct-in-agitated-patients-with-maxillofacial-trauma-analysis-of-image-quality-motion-artifacts-and-dose-aspects
#10
Claudia Frellesen, Julian L Wichmann, Patricia Tischendorf, Jan-Erik Scholtz, Martin Beeres, Thomas J Vogl, Ralf W Bauer
Background Image quality benefits from high-pitch scanning in agitated patients by reducing acquisition time. Purpose To compare image quality and exposure parameters in patients with maxillofacial trauma on second- and third-generation dual-source computed tomography (DSCT). Material and Methods Four groups were compared. Group 1 was examined on second-generation DSCT (120 kV/50 mAs, pitch 3.0). The other three groups were examined on third-generation DSCT. Group 2 was scanned with 120 kV/50 mAs, pitch 2...
January 1, 2017: Acta Radiologica
https://www.readbyqxmd.com/read/29102154/three-dimensional-printer-generated-patient-specific-phantom-for-artificial-in-vivo-dosimetry-in-radiotherapy-quality-assurance
#11
Takeshi Kamomae, Hidetoshi Shimizu, Takayoshi Nakaya, Kuniyasu Okudaira, Takahiro Aoyama, Hiroshi Oguchi, Masataka Komori, Mariko Kawamura, Kazuhiro Ohtakara, Hajime Monzen, Yoshiyuki Itoh, Shinji Naganawa
Pretreatment intensity-modulated radiotherapy quality assurance is performed using simple rectangular or cylindrical phantoms; thus, the dosimetric errors caused by complex patient-specific anatomy are absent in the evaluation objects. In this study, we construct a system for generating patient-specific three-dimensional (3D)-printed phantoms for radiotherapy dosimetry. An anthropomorphic head phantom containing the bone and hollow of the paranasal sinus is scanned by computed tomography (CT). Based on surface rendering data, a patient-specific phantom is formed using a fused-deposition-modeling-based 3D printer, with a polylactic acid filament as the printing material...
October 25, 2017: Physica Medica: PM
https://www.readbyqxmd.com/read/29101992/acr-appropriateness-criteria-%C3%A2-sinonasal-disease
#12
Claudia F E Kirsch, Julie Bykowski, Joseph M Aulino, Kevin L Berger, Asim F Choudhri, David B Conley, Michael D Luttrull, Diego Nunez, Lubdha M Shah, Aseem Sharma, Vilaas S Shetty, Rathan M Subramaniam, Sophia C Symko, Rebecca S Cornelius
Imaging of sinonasal pathology may occur for assessment of rhinosinusitis or mass lesions. Rhinosinusitis is prevalent in up to 16% of the US population with annual economic burdens estimated at 22 billion dollars. Rhinosinusitis is characterized as acute or chronic based on symptom duration; if four or more episodes occur annually, the term recurrent acute rhinosinusitis (RARS) is used. In acute uncomplicated rhinosinusitis when inflammatory change remains in the paranasal sinuses and nasal cavity, imaging may not be required...
November 2017: Journal of the American College of Radiology: JACR
https://www.readbyqxmd.com/read/29099368/detection-of-an-unusual-inverted-schneiderian-papilloma-by-cone-beam-computed-tomography
#13
Rafael Binato Junqueira, Vinícius Dilly Almeida, Gustavo Brandão Grossi, Jamilly Aparecido Sperandio, Lays Kelmer Costa, Francielle Silvestre Verner
An inverted schneiderian papilloma (ISP) is a rare neoplasm that affects the nasal cavity or a paranasal sinus, especially the maxillary sinus. Although histologically benign, the lesion has a high potential for local destruction, has a high recurrence rate, and presents the possibility of malignant transformation into squamous cell carcinoma. To determine the extent of the injury and possible impairment of adjacent maxillofacial structures, accurate imaging, such as cone beam computed tomography (CBCT), is necessary...
November 2017: General Dentistry
https://www.readbyqxmd.com/read/29098299/safety-and-effectiveness-of-a-bioabsorbable-steroid-releasing-implant-for-the-paranasal-sinus-ostia-a-randomized-clinical-trial
#14
Amber Luong, Randall A Ow, Ameet Singh, Robert L Weiss, Joseph K Han, Roland Gerencer, J Pablo Stolovitzky, James W Stambaugh, Aarthi Raman
Importance: Suboptimal outcomes of endoscopic sinus surgery (ESS) are often associated with restenosis and inflammation of frontal sinus ostia. Steroid-releasing sinus implants have been shown to maintain sinus patency by minimizing inflammation and scar tissue formation. An hourglass-shaped, bioabsorbable, steroid-releasing implant was developed to provide mechanical support and optimize drug delivery to paranasal sinus ostia. Objective: To assess the safety and efficacy of the hourglass-shaped, bioabsorbable, steroid-releasing sinus implant in improving postoperative outcomes when placed in the frontal sinus ostia (FSO) following ESS in patients with chronic rhinosinusitis (CRS)...
November 2, 2017: JAMA Otolaryngology—Head & Neck Surgery
https://www.readbyqxmd.com/read/29094889/chronic-rhinosinusitis
#15
Ahmad R Sedaghat
Chronic rhinosinusitis is an inflammatory disease of the paranasal sinuses that occurs in 1% to 5% of the U.S. POPULATION: It may significantly decrease quality of life. Chronic rhinosinusitis is defined by the presence of at least two out of four cardinal symptoms (i.e., facial pain/pressure, hyposmia/anosmia, nasal drainage, and nasal obstruction) for at least 12 consecutive weeks, in addition to objective evidence. Objective evidence of chronic rhinosinusitis may be obtained on physical examination (anterior rhinoscopy, endoscopy) or radiography, preferably from sinus computed tomography...
October 15, 2017: American Family Physician
https://www.readbyqxmd.com/read/29094017/frequency-and-effect-of-type-1-hypersensitivity-in-patients-from-india-with-chronic-obstructive-pulmonary-disease-and-associated-upper-airways-symptoms
#16
Avi Kumar, Shekhar Kunal, Ashok Shah
Background: Chronic obstructive pulmonary disease (COPD) is now recognized as a systemic disorder with many comorbidities. Atopy in patients with COPD and upper airways symptoms has not been characterized. Objective: We investigated the occurrence and impact of aeroallergen sensitisation in patients with COPD and upper airways symptoms. Methods: All 41 subjects with COPD diagnosed as per Global Initiative for Chronic Obstructive Lung Disease guidelines, underwent spirometry with reversibility, computed tomography of the paranasal sinuses (CT-PNS), skin prick test (SPT) against common aeroallergens and responded to St...
October 2017: Asia Pacific Allergy
https://www.readbyqxmd.com/read/29073783/book-review-endoscopic-approaches-to-the-paranasal-sinuses-and-skull-base-bernal-sprekelsen-manuel-alobid-isam-ensenat-joaquim-prats-galino-alberto-eds-endoscopic-approaches-to-the-paranasal-sinuses-and-skull-base-barcelona-thieme-2017-hard-cover-and-e-book
#17
https://www.readbyqxmd.com/read/29072240/the-role-of-the-nasal-and-paranasal-sinus-pathologies-on-the-development-of-chronic-otitis-media-and-its-subtypes-a-computed-tomography-study
#18
M Damar, A E Dinç, D Erdem, S Bişkin, S Ş Eliçora, Y Ç Kumbul
OBJECTIVE: This objective of this study is to evaluate the presence and the coincidence of common nasal and paranasal sinus pathologies in adults suffering from chronic otitis media (COM) and its subtypes. MATERIALS AND METHODS: The study group comprised 354 ears of 177 patients who underwent tympanoplasty with or without mastoidectomy from January 2013 to February 2015 due to uni/bilateral COM. Chronic suppurative otitis media, intratympanic tympanosclerosis (ITTS), cholesteatoma, and tympanic membrane with retraction pockets constituted subtypes of COM...
September 2017: Nigerian Journal of Clinical Practice
https://www.readbyqxmd.com/read/29070268/evaluation-of-a-new-and-simple-classification-for-endoscopic-sinus-surgery
#19
Kengo Kanai, Mitsuhiro Okano, Takenori Haruna, Takaya Higaki, Ryotaro Omichi, Sei-Ichiro Makihara, Munechika Tsumura, Shin Kariya, Yuji Hirata, Kazunori Nishizaki
OBJECTIVE: In 2013, the Japanese Rhinologic Society proposed a simple classification for endoscopic sinus surgery (ESS). This classification consists of five procedures (type I, fenestration of the ostiomeatal complex, with uncinectomy and widening of the natural ostium; type II, single-sinus procedure, with manipulating the inside of the sinus; type III, polysinus procedure; type IV, pansinus procedure; type V, extended procedure beyond the sinus wall). The clinical relevance of this classification in chronic rhinosinusitis (CRS) and paranasal sinus cyst was evaluated...
October 1, 2017: Allergy & Rhinology
https://www.readbyqxmd.com/read/29070267/barosinusitis-comprehensive-review-and-proposed-new-classification-system
#20
Reza Vaezeafshar, Alkis J Psaltis, Vidya K Rao, David Zarabanda, Zara M Patel, Jayakar V Nayak
BACKGROUND: Barosinusitis, or sinus barotrauma, may arise from changes in ambient pressure that are not compensated by force equalization mechanisms within the paranasal sinuses. Barosinusitis is most commonly seen with barometric changes during flight or diving. Understanding and better classifying the pathophysiology, clinical presentation, and management of barosinusitis are essential to improve patient care. OBJECTIVES: To perform a comprehensive review of the available literature regarding sinus barotrauma...
October 1, 2017: Allergy & Rhinology
keyword
keyword
11968
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"