Small cell neuroendocrine carcinoma (SCNEC) is a rare disease of nose and paranasal sinuses. In contrast to other regions SCNEC of this region has been reported to be recurrent and locally aggressive. No definite treatment has been established till date because of rarity of this disease. The purpose of this descriptive study is to present the series of 8 cases with SNEC of nose and paranasal si...

INTRODUCTION Anatomic variations of the paranasal sinuses are very common. The paranasal sinus anatomy should be carefully examined prior to performing endoscopic sinus surgery in terms of both existent pathologies and anatomic variations. The anatomy of the paranasal sinuses and its variations have gained importance, along with advances in coronal paranasal sinus computed tomography and extens...

The aim of this study was to evaluate the histopathological findings of unilateral paranasal sinus disease dominated by maxillary sinus opacification on routine non-contrast enhanced paranasal sinus CT. We performed a retrospective analysis of routine paranasal sinus CT conducted between March 2003 and April 2007. Unilateral maxillary sinus opacification (with or without ipsilateral ethmoid or ...

BACKGROUND Sinusitis is a common disease in the horse. In human medicine it is described, that obstruction of the sinonasal communication plays a major role in the development of sinusitis. To get spatial sense of the equine specific communication ways between the nasal cavity and the paranasal sinuses, heads of 19 horses, aged 2 to 26 years, were analyzed using three-dimensional (3D) reformatt...

The osteomas are osseous lesions with slow and asymptomatic growth that mostof the times isafinding inradiologicalexamsrequested forother reason. It’s the most common benign neoplasm of the paranasal sinuses. The osteomas are located mainly in the frontal sinus (37–80%), followed by the ethmoidal sinuses (20%),maxillarysinusesandrarely in thesphenoidsinus. Although osteoid osteoma is rare in pa...

OBJECTIVES/HYPOTHESIS Paranasal sinus pneumatization in patients with cystic fibrosis (CF) is less extensive compared to the general population and seems to be correlated to CF genotype. Interestingly, in CF patients temporal bone pneumatization (TBP) is more extensive compared to the general population, and middle ear pathology is generally uncommon in CF. It is debated whether TBP is influenc...

Inverted Schneiderian papilloma (ISP) is a neoplasm of epithelial lining origin which arises in the respiratory mucosa that lines the nasal cavity and paranasal sinuses. The inverted Schneiderian papilloma frequently appears as a unilateral lesion in the nasal septum and extends secondarily to the nasal and paranasal sinuses. This paper reports an unusual case of this pathology with involvement...

introduction: plasmacytoma is a monoclonal proliferation of plasma cells. it can be an isolated lesion, for which the term extramedullary plasmacytoma is used, or a representation of multiple myeloma.the upper respiratory tract is the most common site for an extramedullary plasmacytoma. sinonasal plasmacytomas cause different symptoms depending on the sites of origins and the areas of involveme...

mucoceles are defi ned as chronic, cystic lesions in the paranasal sinuses. when the mucocele content becomes infected, the lesion is defi ned as mucopyocele. most mucoceles are located in the frontal and anterior ethmoid sinuses and normally they involve the frontal-ethmoid complex, expanding to the superior-medial region of the orbit, leading to ocular disorders; maxillary sinus presentation ...