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https://www.readbyqxmd.com/read/29166425/anatomy-of-the-sphenopalatine-artery-and-its-implications-for-transnasal-neurosurgery
#1
M Eordogh, A Grimm, I Gawish, L Patonay, R Reisch, H R Briner, G Baksa
BACKGROUND: The knowledge of sinonasal vasculature is inevitable in transnasal neurosurgery. We performed an anatomical study on the sphenopalatine artery from the perspective of skull base procedures. METHODOLOGY: To analyse the anatomical landmarks of the sphenopalatine artery, arterial skull corrosion casts (26 head halves) underwent endoscopic transnasal phantom surgery. Furthermore, we performed microsurgical dissection on formaldehyde-fixated cadavers with arterial perfusion (14 head halves) as well as studied Cone Beam CT-scans of anonymised patients and cadavers (115 head sides)...
November 22, 2017: Rhinology
https://www.readbyqxmd.com/read/29146635/antibiotic-use-and-bacterial-complications-following-upper-respiratory-tract-infections-a-population-based-study
#2
Thomas Cars, Irene Eriksson, Anna Granath, Björn Wettermark, Jenny Hellman, Christer Norman, Anders Ternhag
OBJECTIVES: To investigate if use of antibiotics was associated with bacterial complications following upper respiratory tract infections (URTIs). DESIGN: Ecological time-trend analysis and a prospective cohort study. SETTING: Primary, outpatient specialist and inpatient care in Stockholm County, Sweden. All analyses were based on administrative healthcare data on consultations, diagnoses and dispensed antibiotics from January 2006 to January 2016...
November 15, 2017: BMJ Open
https://www.readbyqxmd.com/read/29141396/proposal-of-a-pretreatment-nomogram-for-predicting-local-recurrence-after-intensity-modulated-radiation-therapy-in-t4-nasopharyngeal-carcinoma-a-retrospective-review-of-415-chinese-patients
#3
Lu-Lu Zhang, Yi-Yang Li, Jiang Hu, Guan-Qun Zhou, Lei Chen, Wen-Fei Li, Ai-Hua Lin, Jun Ma, Zhen-Yu Qi, Ying Sun
Purpose: Local relapse-free survival (LRFS) differs widely among patients with T4 category nasopharyngeal carcinoma (NPC). We aimed to build a nomogram incorporating clinicopathological information to predict LRFS in T4 NPC after definitive intensity-modulated radiation therapy (IMRT). Methods and Materials: Retrospective study of 415 Chinese patients with non-metastatic T4 NPC treated with definitive IMRT with or without chemotherapy at our cancer center between October 2009 and September 2013...
November 15, 2017: Cancer Research and Treatment: Official Journal of Korean Cancer Association
https://www.readbyqxmd.com/read/29134168/anatomical-region-segmentation-for-objective-surgical-skill-assessment-with-operating-room-motion-data
#4
Yangming Li, Randall A Bly, R Alex Harbison, Ian M Humphreys, Mark E Whipple, Blake Hannaford, Kris S Moe
Background  Most existing objective surgical motion analysis schemes are limited to structured surgical tasks or recognition of motion patterns for certain categories of surgeries. Analyzing instrument motion data with respect to anatomical structures can break the limit, and an anatomical region segmentation algorithm is required for the analysis. Methods  An atlas was generated by manually segmenting the skull base into nine regions, including left/right anterior/posterior ethmoid sinuses, frontal sinus, left and right maxillary sinuses, nasal airway, and sphenoid sinus...
December 2017: Journal of Neurological Surgery. Part B, Skull Base
https://www.readbyqxmd.com/read/29133673/case-of-intraocular-foreign-body-partly-lodged-in-the-ethmoid-sinus
#5
Manish Nagpal, Hardik Jain, Rakesh Juneja, Shishir Shekhar Singh
No abstract text is available yet for this article.
November 2017: Indian Journal of Ophthalmology
https://www.readbyqxmd.com/read/29125646/epidural-abscess-caused-by-schizophyllum-commune-a-rare-case-of-rhinogenic-cranial-complication-by-a-filamentous-basidiomycete
#6
Kazuya Tone, Ryuichi Fujisaki, Shigehiro Hagiwara, Takashi Tamura, Shinobu Ishigaki, Mohamed Mahdi Alshahni, Makoto Takehisa, Takehiro Watanabe, Takuya Yasui, Takuo Tokairin, Toshiyo Sagawa, Tetsuya Sakamoto, Ken Ito, Kazuyoshi Kuwano, Koichi Makimura
Central nervous system (CNS) infections due to filamentous basidiomycetes are extremely rare. We encountered a case of epidural abscess due to Schizophyllum commune that extended from sinusitis. A 53-year-old Japanese man presented at our hospital with a headache. Computed tomography (CT) of the cranium and sinuses showed ethmoid and sphenoid sinusitis with no intracranial abnormalities. The patient was diagnosed with acute sinusitis and underwent antibiotic treatment. However, the symptoms deteriorated, and the patient came to our hospital again with consciousness disturbance...
November 10, 2017: Mycoses
https://www.readbyqxmd.com/read/29093979/respiratory-epithelium-lined-cyst-of-the-maxilla-differential-diagnosis
#7
C P Martinelli-Kläy, S Chatelain, F Salvado, T Lombardi
Maxillary cysts, including the cysts lined by respiratory epithelium, can present a diagnostic challenge. We report an unusual case of a maxillary cyst on an endodontically treated tooth #16, in which the cavity was totally lined by a respiratory epithelium. The patient, a 35-year-old male, presented with a generalized chronic periodontitis and complained of a pain in the tooth #16 region. A periodontal pocket extending to the root apices with pus coming out from the gingival was found. A combined endodontic periodontal was observed on a panoramic radiography...
2017: Case Reports in Pathology
https://www.readbyqxmd.com/read/29079177/sinonasal-nut-carcinoma-clinicopathological-and-cytogenetic-analysis-with-autopsy-findings
#8
Hiroshi Minato, Eriko Kobayashi, Satoko Nakada, Nozomu Kurose, Mio Tanaka, Yukichi Tanaka, Shioto Suzuki, Fumihiko Tanioka, Yutaka Saikawa, Takaki Miwa, Takayuki Nojima
Nuclear protein in testis (NUT) carcinoma is a rare malignant neoplasm with an undifferentiated morphology. Its diagnosis is often difficult, especially as the sinonasal tract gives rise to many tumors with undifferentiated morphologies. Not many cases of sinonasal NUT carcinomas have been reported, and its clinicopathological features have not been sufficiently clarified. In this study, we performed a clinicopathological study of 4 patients with sinonasal NUT carcinoma, including wide-ranging immunohistochemical tests and cytogenetic analyses using fluorescence in situ hybridization and DNA sequencing...
October 24, 2017: Human Pathology
https://www.readbyqxmd.com/read/29047295/enhanced-irrigant-delivery-to-the-ethmoid-sinuses-directly-following-ethmoid-punch-sinusotomy
#9
Waleed M Abuzeid, Asa Z Peterson, Aakanksha Rathor, Jordan C Xu, Nathalia Velasquez, Ali R Rashan, Andrew Thamboo, Jayakar V Nayak
OBJECTIVES: Ethmoid punch sinusotomy (EPS) is a feasible treatment for ethmoid sinusitis in a subset of chronic rhinosinusitis (CRS) patients per a recent report. This adjunctive work investigates the technical characteristics of EPS and determines if EPS measurably alters the topical delivery of irrigant into the ethmoid sinuses in a cadaveric model. METHODS: The sinonasal cavities of 10 human cadaver heads were irrigated with a solution containing methylene blue and radio-opaque contrast prior to and following EPS...
December 2017: Annals of Otology, Rhinology, and Laryngology
https://www.readbyqxmd.com/read/29046788/a-rare-case-of-dedifferentiated-liposarcoma-of-the-sinonasal-cavity-a-case-report
#10
Masaru Miyazaki, Mikiko Aoki, Satoru Oba, Toshifumi Sakata, Takashi Nakagawa, Kazuki Nabeshima
Sarcoma is an uncommon histopathological presentation of sinonasal tumors, comprising ~15% of all cases; liposarcoma is particularly uncommon. An analysis of the available medical literature revealed no prior reports of dedifferentiated liposarcoma (DDLPS) of the sinonasal cavity. This case report presents a rare case of DDLPS of the sinonasal cavity. A 40-year old six-week pregnant female was admitted with a left nasal obstruction. Endoscopic evaluation of the left nasal cavity revealed a polypoid lesion. A computed tomography scan indicated a mass invading the left nasal cavity, maxillary sinus and anterior ethmoid sinus with focal destruction of the surrounding bone...
October 2017: Molecular and Clinical Oncology
https://www.readbyqxmd.com/read/29045032/a-retrospective-review-of-six-hundred-and-nineteen-cases-to-determine-the-prevalence-and-factors-associated-with-revision-endoscopic-sinus-surgery-in-afrs-vs-non-afrs-patients
#11
LETTER
A Rajwani, J Manji, A Finkelstein-Kulka, A-R R Habib, S Alsaleh, L Macias-Valle, A R Javer
No abstract text is available yet for this article.
October 17, 2017: Clinical Otolaryngology
https://www.readbyqxmd.com/read/29039988/the-intraoperative-use-of-polydioxanone-foil-to-reduce-the-risk-of-sino-orbital-fistula-formation-in-orbital-exenteration
#12
Aws Al-Hity, Maria Elena Gregory, Ewan G Kemp
BACKGROUND: Orbital exenteration is a radical surgical procedure resulting in deformity. It involves removal of the globe, optic nerve, extra-ocular muscles, orbital fat, lacrimal gland, and peri-osteum. Sino-orbital fistula (SOF) formation is a common documented post-operative complication, usually connecting the orbit and the ethmoid sinus. SOFs can cause leaks of serous fluid, and act as an entry site for pathogens into the orbit leading to socket infection and breakdown. METHODS: This retrospective study analyzed exenterations performed over a 22-year period (1993-2015) at the National Ocular Oncology Service Centre for Scotland...
October 17, 2017: Orbit
https://www.readbyqxmd.com/read/28972988/orbital-complications-of-paranasal-sinusitis-in-taiwan-1988-through-2015-acute-ophthalmological-manifestations-diagnosis-and-management
#13
Yi-Sheng Chang, Po-Lin Chen, Jia-Horung Hung, Hsiao-Yen Chen, Chun-Chieh Lai, Chun-Yen Ou, Chia-Ming Chang, Chien-Kuo Wang, Hon-Chun Cheng, Sung-Huei Tseng
PURPOSE: Paranasal sinusitis is widespread and can lead to orbital complications, blindness, and death. However, the correlation between ophthalmological findings and disease staging remains unclear. This study aimed to investigate the staging, acute ophthalmological manifestations, diagnosis, management, and outcomes of orbital complications of paranasal sinusitis during a 27-year period. METHODS: We retrospectively reviewed the medical records of all patients with orbital complications of paranasal sinusitis hospitalized at the National Cheng Kung University Hospital, a medical center in Taiwan during 1988-2015...
2017: PloS One
https://www.readbyqxmd.com/read/28969258/esthesioneuroblastoma-presenting-with-bilateral-proptosis-and-blindness-in-a-child-a-case-report
#14
Mahdi Shahriari, Nader Shakibazad, Mehrpour Moradi
Esthesioneuroblastoma is a rare malignant tumour of the olfactory epithelium. The most common symptom is related to unilateral nasal obstruction. It rarely presents with bilateral proptosis and blindness. We report a 21-month-old girl with esthesioneuroblastoma in sphenoid and ethmoid sinus in a child presenting with bilateral proptosis, blindness, and irritability. The diagnosis was confirmed by histopathology.
August 2017: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28966461/natural-killer-t-cell-lymphoma-invading-the-orbit-and-globe
#15
Lance J Lyons, Ivan Vrcek, Marie Somogyi, Kevin Taheri, Joan H Admirand, Saradha Chexal, Demetrius F Loukas, Tanuj Nakra
Natural killer/T-cell lymphomas are extremely rare and carry high mortality rates. Epidemiologically, these cancers tend to affect mainly Asian and South American patients and are associated with Epstein-Barr virus seropositivity. This report details a 78-year-old Vietnamese woman who presented initially with vitritis of unknown cause, but later developed proptosis and conjunctival involvement as her disease spread. Biopsies of the orbit, ethmoid sinus, and conjunctiva were found to be significant for natural killer/T-cell lymphoma...
October 2017: Proceedings of the Baylor University Medical Center
https://www.readbyqxmd.com/read/28959791/clinical-features-diagnosis-and-outcomes-of-rhino-orbito-cerebral-mucormycosis-a-retrospective-analysis
#16
A Abdollahi, T Shokohi, N Amirrajab, R Poormosa, A M Kasiri, S J Motahari, S M Ghoreyshi, S A Madani, M Nikkhah, M Ghasemi, L Vahedi Larijani, M Didehdar, Z Seifi, N Gholinejad, M Ilkit
BACKGROUND AND PURPOSE: Rhino-orbito-cerebral mucormycosis (ROCM) is a rare disease with acute and fulminant manifestation. This infection is associated with high morbidity and mortality rates. Herein, we reviewed the manifestations, underlying conditions, medical treatments, and surgical interventions in ROCM patients admitted to a tertiary referral center in northern Iran over a seven-year period. MATERIALS AND METHODS: In a retrospective analysis, 15 cases of ROCM were identified from 2007 to 2013 in Bu Ali Sina Hospital, Sari, Iran...
December 2016: Advances in Medical Mycology (Iran)
https://www.readbyqxmd.com/read/28953140/a-rare-cause-of-headache-pneumatized-nasal-septum-osteoma
#17
Osman Erdoğan, Onur Ismi, Mesut Sabri Tezer
Paranasal sinus osteomas are among the rare causes of headache and they are most commonly seen in the frontal and ethmoid sinuses. In this report, we presented the first case of pneumatized nasal septum osteoma causing headache, successfully treated with endoscopic transnasal approach.
November 2017: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/28946910/primary-paranasal-sinus-hyalinizing-clear-cell-carcinoma-a-case-report
#18
Batool M AlAli, Mohammed J Alyousef, Ahmad Salah Kamel, Mohammad A Al Hamad, Mohammad H Al-Bar, Roaa M Algowiez
BACKGROUND: Hyalinizing clear cell carcinoma (HCCC) is a rare low-grade tumour of salivary glands that was first described as a distinct entity in 1994 by Milchgrub et al. EWSR1-ATF1 fusion was found to be specific for this tumour. The majority of the reported cases of HCCC arise from minor salivary glands within the oral cavity. Primary HCCC of the paranasal sinus is extremely uncommon. To our knowledge, only three cases have been reported in the English literature. Herein, we present a case of HCCC of the posterior ethmoid/maxillary sinus...
September 25, 2017: Diagnostic Pathology
https://www.readbyqxmd.com/read/28941169/three-dimensional-image-analysis-for-staging-chronic-rhinosinusitis
#19
Sooyoung Lim, Michael V Ramirez, Jonathan C Garneau, Megan K Ford, Katherine McKeough, Daniel T Ginat, Fuad M Baroody, Samuel G Armato, Jayant M Pinto
BACKGROUND: Traditional methods of staging chronic rhinosinusitis (CRS) through imaging do not differentiate between degrees of partial mucosal sinus inflammation, thus limiting their utility as imaging biomarkers. We hypothesized that software-aided, quantitative measurement of sinus inflammation would generate a metric of disease burden that would correlate with clinical parameters in patients with suspected sinus disease. METHODS: Adults with rhinologic complaints undergoing computed tomography imaging were recruited at an urban, academic, tertiary care center (n = 45 with Lund-Mackay [LM] scores ≥4)...
September 22, 2017: International Forum of Allergy & Rhinology
https://www.readbyqxmd.com/read/28940582/randomized-controlled-trial-of-steroid-soaked-absorbable-calcium-alginate-nasal-packing-following-endoscopic-sinus-surgery
#20
Chi Sang Hwang, Salma Saud Al Sharhan, Bo Ra Kim, Soo In Kim, Jin Woong Kim, Hyung-Ju Cho, Joo-Heon Yoon, Chang-Hoon Kim
OBJECTIVES/HYPOTHESIS: To evaluate the potential efficacy of steroid-soaked, absorbable calcium alginate nasal packing following endoscopic sinus surgery. STUDY DESIGN: Prospective, randomized, single-blinded, placebo-controlled trial. METHODS: Twenty-two patients (44 nostrils) who had chronic rhinosinusitis with polyps underwent bilateral endoscopic sinus surgery. Only those with an intersinus difference in Lund-Mackay severity score of 1 or less were included...
September 22, 2017: Laryngoscope
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