نتایج جستجو برای: paranasal

تعداد نتایج: 3523  

2013
Alexandra Mavrodi George Paraskevas

Previously, anatomists considered paranasal sinuses as a mysterious region of the human skull. Historically, paranasal sinuses were first identified by ancient Egyptians and later, by Greek physicians. After a long period of no remarkable improvement in the understanding of anatomy during the Middle Ages, anatomists of the Renaissance period-Leonardo da Vinci and Vesalius-made their own contrib...

Journal: :Current opinion in otolaryngology & head and neck surgery 2006
Pavel Dulguerov Abdelkarim S Allal

PURPOSE OF REVIEW New developments in the nasal and paranasal sinus cancers are reviewed. RECENT FINDINGS In addition to woodworking, several risk factors for nasal and paranasal sinus cancers have been identified, most notably smoking. Progress in the differential diagnosis of small round cell nasal and paranasal sinus cancers allows the precise diagnosis of esthesioneuroblastoma. Despite re...

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...

2010
Sunita Agarwal

Objective: Rare cases of fungal balls of paranasal sinuses in children. No case has been reported in young children so far. However, allergic aspergillosis has been reported in young children. Method: A case report of 2 cases of fungal balls of paranasal sinuses in children and review of the current literature concerning fungal balls of paranasal sinuses in children are presented. Result: 2 cas...

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: :Anatomia, histologia, embryologia 2013
M A M Alsafy S A A El-Gendy A A El Sharaby

The purpose of this work was to present an anatomic reference for computed tomography (CT) for the paranasal sinuses of adult buffalo fit the use of anatomists, radiologists, clinicians and veterinary students. CT images with the most closely corresponding cross sections of the head were selected and studied serially in a rostral to caudal progression from the level of the interdental space to ...

Journal: :Clinical imaging 1998
J Damilakis P Prassopoulos M Mazonakis J Bizakis E Papadaki N Gourtsoyiannis

A technique for three-dimensional (3D) computed tomography (CT) of the paranasal sinuses was evaluated. The influence of milliamperage and reconstruction algorithms on image quality was studied in a phantom. Eleven patients with bony abnormalities of the paranasal sinuses underwent CT to assess the clinical impact of 3D CT protocol. Contiguous 1.5-mm sections obtained at 120 kVp/175 mA/1.9 sec ...

Journal: :iranian journal of pathology 2010
mohammad ibrahim yarmohammadi horieh saderi pupak ezadi siamak afshin majad maryam hashemi

background and objectives: nasal polyposis is a diseases resulting from complex pathogenetic mechanisms. some studies showed that tgfβ1 had significant role in this pathogenesis. in this study, we investigated the roe of cytokines and mediators in polyp development. material and methods: in this case- control study, healthy nasal mucosal samples were obtained from 24 people undergoing septoplas...

Journal: :acta medica iranica 0
mohammad shayani nasab department otolaryngology, besat hospital, hamadan university of medical sciences, hamadan, iran. mohammad jafari department pathology, ekbatan hospital, hamadan university of medical sciences, hamadan, iran. seyed habibollah mosavi bahar department urology, besat hospital, hamadan university of medical sciences, hamadan, iran. hamid shayani nasab department urology, besat hospital, hamadan university of medical sciences, hamadan, iran.

metastatic   tumors in the nose and paranasal sinuses are infrequent. the origin of this metastatic tumors are often renal cell carcinoma. we present one case of metastatic renal cell carcinoma   to the nose and paranasal sinuses ,4 years after initial nephrectomy and diagnosis of stage t1n0m0 clear cell carcinoma. the patient complained of nasal obstruction and recurrent epistaxis   who was tr...

Journal: :Acta otorrinolaringologica espanola 1990
Guilherme de Toledo Leme Constantino Fernando Sasaki Raquel Aguiar Tavares Richard L Voegels Ossamu Butugan

UNLABELLED Inflammatory pseudotumors may be defined as lesions that clinically and radiologically simulate neoplasms. These tumor are not a single clinical-pathological entity, but rather a generic term applied to any nonspecific, chronic, inflammatory expanding lesion. There are few reports of inflammatory pseudotumors in the nasal cavity and paranasal sinuses. CASE REPORT We report three ca...

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