Objective. To investigate the clinical features of paranasal sinus osteomas and to estimate the growth rate of these tumors in a large series of patients. Design. Case series with chart review. Setting. University hospital, tertiary referral center. Subjects and Methods. The authors retrospectively reviewed the paranasal sinus tomography scans that were taken between January 1997 and April 2008...

Due to the insidious onset and common symptoms, the diagnostic of sinonasal tumors is late in the evolution. Usually, at that time, the preferred endoscopic approach alone is not recommended, therefore a mixed openendoscopic approach appears to be the best choice in terms of exposure of the tumor and a clear margin resection. The purpose of this case report study is to demonstrate the necessity...

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...

Background: Chronic rhinosinusitis (CRS) refers to a group of disorders characterized by inflammation of the mucosa of the paranasal sinuses. Nasal endoscopy and computed tomography (CT) scans are successfully used as diagnostic modalities of nose and paranasal sinus diseases. There have been many studies regarding the anatomic variations leading to pathogenesis of paranasal sinus diseases. Con...

Invasive plasmacytoma appearing as a mass in the paranasal sinuses developed in two patients after cardiac transplantation. Radiographic findings included a sinus mass with bony invasion and expansion. The findings were radiographically indistinguishable from common malignant neoplasms and aggressive infectious processes. Malignant plasmacytoma should be considered in the differential diagnosis...

The maxillary sinus is an airfilled cavity and is part of a series of paranasal sinuses and impacts most on the work of oral and maxillofacial surgeons as they will often be required to make a diagnosis in relation to inflammation, orofacial pain, tumour, etc. It could be mainly sinogenic or odontogenic in origin. Maxillary sinus diseases are often coincidentally observed on radiographs, and ph...

Endonasal endoscopic sinus surgery is the standard procedure for surgery of most paranasal sinus diseases. Appropriate frame conditions provided, the respective procedures are safe and successful. These prerequisites encompass appropriate technical equipment, anatomical oriented surgical technique, proper patient selection, and individually adapted extent of surgery. The range of endonasal sinu...

Particle beam therapy has been rapidly developed in these several decades. Proton and carbon ion beams are most frequently used in particle beam therapy. Proton and carbon ion beam radiotherapy have physical and biological advantage to the conventional photon radiotherapy. Cancers of the skull base, nasal cavity, and paranasal sinus are rare; however these diseases can receive the benefits of p...

Paranasal sinus mucoceles are benign, locally expansile cyst-like masses that are filled with mucus and lined with epithelium. Most occur in the frontal sinus. Maxillary sinus mucoceles are presumably uncommon in the United States and European countries, although they have been frequently reported in Japan, particularly following Caldwell-Luc surgery. Clinical symptoms may not appear for at lea...