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Paranasal sinuses

Darren Yap, Hannah Fox, Julia Addams-Williams
Neurofibroma is a slow growing benign tumour of the peripheral nerve sheath which is frequently associated with neurofibromatosis type 1 (Prakash et al., 2014). Isolated solitary occurrence of neurofibroma in the maxillary sinus is rare with only 29 reported cases in the literature. We present a rare case of a 70-year-old gentleman who was referred to ENT with a right maxillary sinus neurofibroma with extension into the right inferior orbit. He has significant proptosis, ptosis, and limitation in abduction of the right eye...
2016: Case Reports in Pathology
Yuichi Arai, Keiichi Ito, Kazuyoshi Tachi, Akio Koga, Yusuke Shinchi, Ayako Masunaga, Makoto Isono, Tomohiko Asano
A 73-year-old male patient underwent a right nephrectomy for renal cell carcinoma in 2008, and interferon-alpha was initiated as adjuvant treatment. Computed tomography (CT) scans showed lymphadenopathy above the left diaphragm, and treatment with interferon-2 was subsequently initiated in 2009. Nasal bleeding manifested in February 2010, and CT scans showed a soft-tissue density mass mainly located in the ethmoid sinus. A biopsy of the lesion was performed, and metastatic renal cell carcinoma was diagnosed...
September 2016: Hinyokika Kiyo. Acta Urologica Japonica
Cenk Murat Özer, Ibrahim Ilker Öz, Ismail Şerifoğlu, Mustafa Çağatay Büyükuysal, Çağatay Barut
The orbital aperture is the entrance to the orbit in which most important visual structures such as the eyeball and the optic nerve are found. It is vital not only for the visual system but also for the evaluation and recognition of the face. Eyeball volume is essential for diagnosing microphthalmos or buphthalmos in several eye disorders. Knowing the length of the optic nerve is necessary in selecting the right instruments for enucleation. Therefore, the aim of this study was to evaluate eyeball volume, orbital aperture, and optic nerve dimensions for a morphological description in a Turkish population sample according to gender and body side...
October 14, 2016: Journal of Craniofacial Surgery
Abib Agbetoba, Amber Luong, Jin Keat Siow, Brent Senior, Claudio Callejas, Kornel Szczygielski, Martin J Citardi
BACKGROUND: Endoscopic sinus surgery represents a cornerstone in the professional development of otorhinolaryngology trainees. Mastery of these surgical skills requires an understanding of paranasal sinus and skull-base anatomy. The frontal sinus is associated with a wide range of variation and complex anatomical configuration, and thus represents an important challenge for all trainees performing endoscopic sinus surgery. METHODS: Forty-five otorhinolaryngology trainees and 20 medical school students from 5 academic institutions were enrolled and randomized into 1 of 2 groups...
October 18, 2016: International Forum of Allergy & Rhinology
Timo J Autio, Timo Koskenkorva, Tuomo K Leino, Petri Koivunen, Olli-Pekka Alho
OBJECTIVE: To illuminate the pathophysiology of acute rhinosinusitis (ARS) with sequential monitoring of inflammatory biomarkers during an ARS episode and to clarify their diagnostic usability in bacterial ARS. STUDY DESIGN: Inception cohort study with 50 conscripts with ARS. METHODS: We collected peripheral blood high-sensitive C-reactive protein (hs-CRP), white blood cell (WBC), procalcitonin, and nasal nitric oxide (nNO) counts at 2 to 3 and 9 to 10 days of symptoms during an ARS episode...
October 18, 2016: Laryngoscope
Christian Güldner, Isabell Diogo, Eva Bernd, Stephanie Dräger, Magis Mandapathil, Afshin Teymoortash, Hesham Negm, Thomas Wilhelm
Cone beam computed tomography (CBCT, syn. digital volume tomography = DVT) was introduced into ENT imaging more than 10 years ago. The main focus was on imaging of the paranasal sinuses and traumatology of the mid face. In recent years, it has also been used in imaging of chronic ear diseases (especially in visualizing middle and inner ear implants), but an exact description of the advantages and limitations of visualizing precise anatomy in a relevant number of patients is still missing. The data sets of CBCT imaging of the middle and inner ear of 204 patients were analyzed regarding the visualization of 18 different anatomic structures...
October 17, 2016: European Archives of Oto-rhino-laryngology
Kenji Kishimoto, Ryoji Kobayashi, Daiki Hori, Hirozumi Sano, Daisuke Suzuki, Kazue Yasuda, Kunihiko Kobayashi
To determine whether pretransplant PSD affects the clinical outcomes in HSCT, a retrospective cohort analysis of 73 pediatric and adolescent patients who underwent HSCT was performed. Pretransplant PSD was defined as the presence of a fluid level or mucosal swelling or total opacity on sinus X-ray or CT examination performed before HSCT. Pretransplant PSD was observed in 21 (29%) patients. The probability of 2-year OS after HSCT was 42% in patients with pretransplant PSD (PSD group), and 64% in those without (non-PSD group) (P=...
October 17, 2016: Pediatric Transplantation
Bum Soo Kim, Kyoungjune Pak, Keun-Ik Yi, In Joo Kim, Hwan-Jung Roh, Kyu-Sup Cho
The objective of this study was to investigate the value of parameters assessed with F18-FDG PET/CT in predicting recurrence-free survival (RFS) and disease-specific survival (DSS) in patients with cancer of nasal cavity and paranasal sinus. Thirty-eight patients with cancer of nasal cavity (n = 14) and paranasal sinus (n = 24) who underwent PET/CT prior to curative treatment were enrolled. A volume of interest was placed on PET/CT images covering the entire tumor volume, and the maximum SUV (SUVmax), the mean SUV (SUVmean), and volumetric parameters of metabolic tumor volume (MTV) and total lesion glycolysis (TLG) were measured using thresholds of 40 % of SUVmax...
October 17, 2016: European Archives of Oto-rhino-laryngology
Mohammad Waheed El-Anwar, Mohammad Abdelhady, Hazem Saeed Amer, Manar A Ghali
Introduction Due to the close anatomical relationship between the paranasal sinuses and the orbit, involvement or injury of the orbit from paranasal sinuses procedures may occur. Objectives We aimed to study the early and delayed effect of endoscopic sinus surgery on intraocular pressure (IOP). Methods We included in the study 38 patients with chronic rhinosinusitis (CRS), undergoing FESS. We performed FESS with the standard anterior to posterior approach. We measured IOP at the same time one day before surgery as well as day 1 and 6 weeks after surgery...
October 2016: International Archives of Otorhinolaryngology
Gyanesh Sethi, Arunabha Chakravarti
OBJECTIVE: The present study aims to evaluate the role of Endoscopic Sinus Surgery (ESS) in refractory pediatric Chronic Rhinosinusitis (CRS) and to assess the change in quality of life after ESS. MATERIALS AND METHODS: This prospective interventional study included 35 children (aged between 6 and 12 years) of refractory CRS, not responding to 4 weeks of maximal medical therapy attending the pediatric ENT clinic of a tertiary referral centre. Study period was from November 2013 to March 2016...
November 2016: International Journal of Pediatric Otorhinolaryngology
Yusuke Takahashi, Takao Watanabe, Akira Iimura, Osamu Takahashi
In this paper, using full-body CT images of elderly and advanced elderly Japanese cadavers, we measure maxillary and other paranasal sinus volumes in order to examine the effects of age, sex, presence or absence of maxillary molars, and other factors on changes to maxillary sinus volume. The research subjects consisted of 77 of 95 cadavers donated to the Kanagawa Dental University between 2012 and 2014, which average age was 82.6 ± 10 years (33 were male, average age 79.3 ± 8.3 years, and 44 were female, average age 85...
2016: Okajimas Folia Anatomica Japonica
Satoshi Koyama, Yosuke Nakamura, Yuko Yokoyama, Tsuyoshi Morisaki, Takahiro Fukuhara, Kazunori Fujiwara, Hiroya Kitano, Hiromi Takeuchi
Basaloid squamous cell carcinoma (BSCC) is a histologically distinctive variant of squamous cell carcinoma comprising basal cell carcinoma and squamous cell carcinoma. BSCC is aggressive and shows a poor prognosis because of frequent lymph node invasion and distant metastases. BSCC preferentially occurs in the cervix, thymus, and esophagus and is uncommonly found in the head and neck region. BSCC in the nasal cavity or paranasal sinus is particularly rare. Inverted papilloma is an uncommon, benign tumor with a propensity to be associated with malignancy; however, BSCC arising in an inverted papilloma has never been reported...
October 6, 2016: Auris, Nasus, Larynx
Jennifer A Schleining
Conditions of the head requiring surgery in cattle are not uncommon when considering the incidence of conditions such as ocular squamous cell carcinoma and requests for surgical dehorning. Surgery involving the eyes in cattle is relatively common, whereas surgery of the paranasal sinuses is less common. Generally speaking, however, surgery for conditions of the head tend to have a more favorable prognosis when there is early intervention.
November 2016: Veterinary Clinics of North America. Food Animal Practice
Marcin Frączek, Mateusz Kolator, Tomasz Kręcicki
: Indroduction: The planning of the course of surgery in patients with paranasal sinus disorders requires the meticulous evaluation of computed tomography (CT) scans. However, ENT doctors still often receive unsatisfactory DICOM images, which require multiplanar reconstruction (MPR). THE AIM: The objective of the present study was to evaluate and test DICOM viewers with MPR function currently available on the Internet for free. MATERIAL AND METHODS: Detailed Internet searches and analysis of databases were carried out to find the maximum number of browsers...
2016: Wiadomości Lekarskie: Organ Polskiego Towarzystwa Lekarskiego
N A Koontz, T A Seltman, S F Kralik, K M Mosier, H R Harnsberger
Radiologists have long relied upon the use of metaphoric imaging signs to attribute meaning to disease or anatomy-specific imaging patterns encountered in clinical imaging. Teachers of radiology often employ the use of such signs to help learners rapidly identify the typical appearance of various pathologies. Head and neck (H&N) imaging is no exception, and as a specialty that deals with uncommon pathologies and complex anatomy, learners and practising radiologists alike may benefit from this simplistic, pattern-based approach...
October 3, 2016: Clinical Radiology
Phoebe Kuo, R Peter Manes, Zachary G Schwam, Benjamin L Judson
OBJECTIVE: Sinonasal undifferentiated carcinoma is a rare and aggressive malignancy of the nasal cavity and paranasal sinuses. Multi-institutional studies examining outcomes of combined modality treatment versus other treatment modalities have not been performed. The objective of our study was to present outcomes for multimodality therapy through use of the National Cancer Database. STUDY DESIGN: Retrospective cohort study. SETTING: National Cancer Database...
October 4, 2016: Otolaryngology—Head and Neck Surgery
A Fox-Lewis, G Coltart, S Rice, R Sen, Y Gourtsoyannis, H Hyare, R K Gupta
We report a case of a 31 year old male with extensive subclinical sinusitis leading to erosion in the cribriform plate and subsequent meningitis caused by the organism Moraxella osloensis. The patient presented to the emergency department with rapid onset confusion, neck stiffness and headache. Inflammatory markers, renal and liver function, and a chest radiograph were all normal. CT Head showed extensive polyp disease in the paranasal sinuses with expansion of the left frontal sinus and CT Sinuses revealed an area of low attenuation in the cribriform plate consistent with bony erosion...
2016: IDCases
David O Udoh, Emmanuel Ibadin, Mojisola O Udoh
BACKGROUND: Intracranial abscess collections, though uncommon, are dreaded complications of head trauma, neurosurgical operations, meningitis, and otogenic, mastoid, and paranasal air sinus infections. Combining surgical evacuation with the appropriate antibiotic therapy is the effective treatment for intracranial abscesses. However, literature on surgical treatment is replete with several procedures which, on their own, may not. OBJECTIVES: To determine the epidemiology and outcomes (of various treatment modalities) of intracranial abscesses in our institution, a major referral center for neurosurgical conditions in the midwestern region of Nigeria...
October 2016: Asian Journal of Neurosurgery
Elmar Oestreicher, Harald Bartsch, Doris Mayr, Mario Schubert, Barbara Weber, Peter Kneschaurek, Walter Assmann, Ronald Sroka, Christian Stephan Betz
PURPOSE: Ostial restenosis is a common cause of failures in paranasal sinus surgery. The aim of the current study was to investigate the use of low-dose-rate brachytherapy to prevent neo-ostial restenosis in an animal model. METHODS AND MATERIALS: In 14 rabbits, maxillary neo-ostia were created and measured. One side each was stented with a regular silicone stent, the other side was either not stented (n = 7) or stented with a phosphorous-32 implanted stent depositing a low-dose radiation of 15 Gy (n = 7) within 1 week, after which all stents were removed...
September 29, 2016: Brachytherapy
Anja Lieder, Thomas Guenzel, Steffen Lebentrau, Constanze Schneider, Achim Franzen
PURPOSE: Renal cell carcinoma (RCC) is a malignant tumor that metastasizes early, and patients often present with metastatic disease at the time of diagnosis. The aim of our evaluation was to assess the diagnostic and differential diagnostic relevance of metastatic renal cell carcinoma (RCC) with particular emphasis on head and neck manifestations in a large patient series. PATIENTS AND METHODS: We retrospectively evaluated 671 consecutive patients with RCC who were treated in our urology practice between 2000 and 2013...
September 20, 2016: International Braz J Urol: Official Journal of the Brazilian Society of Urology
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