BACKGROUND AND PURPOSE The crista galli is part of the ethmoid bone and, as such, it could be expected that aeration of the crista would come from ethmoid cells. After observing crista pneumatization from the frontal sinuses in several cases, we undertook this study to establish how often crista galli pneumatization came from the frontal sinuses rather than from the ethmoid complex. MATERIALS...

BACKGROUND Osteomas of ethmoid sinus are rare, especially when they involve anterior skull base and orbit, and lead to ophthalmologic and neurological symptoms. CASE PRESENTATION The present case describes a giant ethmoid osteoma. Patient symptoms and signs were exophthalmos and proptosis of the left eye, with progressive visual acuity impairment and visual fields defects. CT/MRI scanning dem...

BACKGROUND A distinct set of inflammatory and remodelling factors have been found elevated in chronic rhinosinusitis. OBJECTIVE The investigation of their expression in early stage disease may reveal early events in this common disease. METHODS Sinonasal mucosal samples from nine patients with early stage CRSsNP were taken from the inferior and middle turbinates, the uncinate process, maxil...

OBJECTIVE The aim of this study was to observe the relationship of the sphenoid sinus and posterior ethmoid cells with the optic nerve. MATERIAL AND METHODS 34 CT scans (68 sides) of paranasal sinuses of patients older than 18 years were retrospectively reviewed. Images were assessed in two planes--axial and coronal. We observed the position and relationship of the optic nerve to the posterio...

Objectives. To identify factors that influence hospitalization time, complications, and prognosis of patients with ethmoid adenocarcinoma treated with different surgical techniques. Design. Single-institution retrospective review. Setting. Academic tertiary care center. Patients. Sixty-seven patients with ethmoid adenocarcinoma treated from January 1985 to August 2009 were retrospectively evalu...