نتایج جستجو برای: sinus
تعداد نتایج: 42032 فیلتر نتایج به سال:
introduction: the surgical management of chronic frontal sinus disorders remains a challenge for rhinologists. the aim of this study was to evaluate the result of draf iii in a series of patients who underwent this procedure. materials and methods: twenty patients were included in this study. demographic data, history of prior surgery, asthma, aspirin sensitivity and lund–mackay score were r...
the relationship between asthma and sinusitis has been proposed in many reports but the role of sinus surgery in their treatment is still controversial. therefore, the effect of functional sinus surgery in patients with controlled asthma was evaluated. fifty six patients with a history of sinusitis in whom maximum medical treatment had failed and also those with a history of asthma who were in ...
in human several kinds of electrocardiographic findings have been reported in association with pneumothorax such as decreased and/or alternating qrs amplitude (electrical alternans). however, electrocardiographic changes concurrent with pneumothorax have rarely been discussed in veterinary literature. a 3-year-old male crossbreed dog was presented with a history of car accident. thoracic au...
introduction a mucocele is an epithelial-lined, mucus-containing sac that can fill the sinus completely and expand gradually. mucopyocele is an infected mucocele. case report we presented a case of left maxillary mucopyocele in a 58-year-old man that developed after radiotherapy for nasopharyngeal carcinoma. computed tomography scan showed opacification of the left maxillary sinus expanding thr...
Aims: Sphenoid sinus is one of the most inaccessible paranasal sinus, and is closely correlated to many vascular and neural structures. Anatomic variation of the sphenoid sinus can complicate surgery in this area. The aim of the present investigation was to define the sphenoid sinus variations and the relevant structures using cone-beam computed tomography (CBCT). Methods: This cross-sectiona...
Introduction: Ectopic tooth eruption may result owing to one of 3 processes: developmentalDisturbance, iatrogenic activity, or pathologic process, such as a tumor or a cyst. In rare cases, occlusion of the sinus ostia may predispose a patient to develop a maxillary sinus mucocele. When the maxillary sinus is invaded, symptoms usually occur late in the process. Case report: A 17 years old boy...
a 38-year-old man with a history of recurrent genital ulceration initially diagnosed as genital herpes was admitted after presenting with paroxysmal nocturnal dyspnea. echocardiography revealed aneurysm formation of the sinus of valsalva. on diagnosis of an aneurysm of the sinus of valsalva associated with behçet's disease (bd), surgeon repaired the affected sinus only, and continuous steroid t...
Background and Aims: It is crucial to verify the relationship between root apices and maxillary sinus floor in some surgical procedures like extraction and implant placement or in orthodontic movements like intrusion. Protrusion of roots into the sinus increases the risk of post extraction pneumatization which in turn decreases the available bone at the implant or denture sites. The aim of th...
Introduction: Maxillary sinuses are among the largest paranasal sinuses with various shapes and volumes. The dimensions and volumes of maxillary sinuses play an important role in the surgical treatment plan. The higher levels of pneumatization of alveolar bone lead to the increase of odontogenic sinusitis which cause problems in dental implantation. Therefore, this study aimed to evaluate...
reports which describe sick sinus syndrome due to malignant lymphoma have been rare and only eight cases have been reported until now. this is a case of sick sinus syndrome and superior vena cava syndrome secondary to invasion of occult malignant lymphoma of the lung in a 60 years old male. there were no symptoms or signs of malignancy before the first presentation with sick sinus syndrome. pat...
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