نتایج جستجو برای: paranasal sinus tumors

تعداد نتایج: 219593  

2016
Ardizal Rahman

Introduction: The close relationship between diseases of the paranasal sinuses system and the orbit is based on their anatomical relationship. About 60% to 80% of the osseous eye socket is made up by sinus walls. Objective: To describe evaluation of orbital complications in patient with paranasal sinuses diseases at Dr. M. Djamil Hospital Padang for 2005-2014. Method: Descriptive study we obtai...

Journal: :Journal of applied physiology 2003
Ozcan Cakmak Huseyin Celik Mehmet Cankurtaran Fuat Buyuklu Nuri Ozgirgin Levent Naci Ozluoglu

We used pipe models to investigate the effects of paranasal sinus ostium size and paranasal sinus volume on the area-distance curves derived by acoustic rhinometry (AR). Each model had a Helmholtz resonator or a short neck as a side branch that simulated the paranasal sinus and sinus ostium. The AR-derived cross-sectional areas posterior to the ostium were significantly overestimated. Sinus vol...

Journal: :acta medica iranica 0
"saberi h "

non-penetrating head injuries associated with skull base fractures can lead to the development of pneumocephalus upon airs ingress, which leads its course in the subarachnoid space. intracerebral air accumulation is rare and ensuses when a paranasal sinus fracture is associated with a ensues when a paranasal sinus fracture is associated with a nearby parenchymal contusion. a 25-year old man is ...

2016
Richard V. Smith Sue S. Yom Jonathan J. Beitler Paul M. Busse Jay S. Cooper Ehab Y. Hanna Christopher U. Jones Shlomo A. Koyfman Nabil F. Saba Joseph K. Salama

Introduction/Background The paranasal sinuses consist of the maxillary, ethmoid, sphenoid, and frontal sinuses. They communicate with the nasal cavity in the midline and all structures together form a group of air-filled cavities where cancers can arise, grow, and spread without encountering significant barriers to local extension. Cancers of the paranasal sinuses and nasal cavity are rare mali...

2010
Samir A.A. Elgendy Mohamed A.M. Alsafy

The current work aimed to analyse the anatomical findings of the nasal and paranasal sinuses of the donkey by gross anatomical observation of the skull and cadaver head, cross-sections, sagittal sections and computed tomography (CT) imaging. Seven adult donkeys and ten skulls were used in this study. The donkey head had six pairs of sinuses, three paranasal; the frontal, maxillary, and sphenopa...

Journal: :AJNR. American journal of neuroradiology 2000
U S Kanamalla P P Kesava H S McGuff

The imaging and pathologic features of three cases of nonlaryngeal neuroendocrine carcinoma of the head and neck are described. Neuroendocrine carcinomas represent malignant epithelial neuroendocrine neoplasms and are classified as three types: typical carcinoid (well differentiated), atypical carcinoid (moderately differentiated), and small cell neuroendocrine (poorly differentiated) carcinoma...

2016
Yusuke Kabeya Kiyoe Kato Masuomi Tomita Takeshi Katsuki Yoichi Oikawa Akira Shimada

BACKGROUND We hypothesized that higher body mass index (BMI) was associated with increased prevalence of paranasal sinus disease and examined the hypothesis in Japanese adults. METHODS This was a cross-sectional study including 1350 Japanese adults aged 40 years or more who participated in a health check-up program focusing on brain diseases and metabolic syndrome. Participants were divided i...

Journal: :Journal of radiology case reports 2009
Maneesh Khanna Shanker Rao Buddhavarapu Sheik Akbar Hussain Emran Amir

Fibro-osseous lesions of the face and paranasal sinuses are relatively uncommon. These lesions have overlapping clinical, radiologic and pathologic features causing difficulty in diagnosis. Neoplastic fibro-osseous paranasal sinus lesions can be benign or malignant. The benign fibro-osseous lesions described are: ossifying fibroma (and its histologic variants) and fibrous dysplasia. The variant...

Journal: :Compendium 2011
R Wayne Waguespack Jennifer Taintor

The paranasal sinus system of horses is complex, comprising six pairs of sinuses. Disease processes that can develop in the sinuses include ethmoid hematomas, cysts, neoplasia, and bacterial and fungal infections. Horses that develop paranasal sinus disease vary widely in age. A significant number of clinical conditions involving the paranasal sinuses require a combination of diagnostic tests t...

2012
R. Ananthalakshmi B. Sekar S. Murali D. Vijayalakshmi Paul Simon

Non-Hodgkin’s Lymphoma (NHL) occurring in the paranasal sinus is very uncommon. Diagnosis of NHL arising from paranasal sinus and more specifically the maxillary sinus often will be challenging because of the symptoms mimicking clinical features of sinusitis. Here we report a case of maxillary antral NHL in a female patient of age 42 years with chief complaint of unilateral nasal obstruction. I...

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