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...

The effect of sympathetic stimulation (stellate ganglion) on dog cerebral and cephalic blood flows was studied via a cervical or a thoracic approach to the stellate ganglion under sodium pentobarbital or chloralose anesthesia. Two different stimulation voltages (3v and 5v) of monophasic pulses were applied for 1 minute. Venous outflow was measured at the confluence of the sagittal, straight and...

OBJECTIVES/HYPOTHESIS The depth of the frontal sinus was measured using axial computed tomography (CT) images to examine the safety of frontal sinus trephination at selected distances from the midline. STUDY DESIGN Review of 200 sinus CT scans. METHODS Two hundred sinus CT scans (400 frontal sinuses) were reviewed to measure the frontal sinus depth at 5 mm, 10 mm, and 15 mm from midline. ...

A patient with spina bifida and hydrocephalus who had undergone multiple shunt revisions, presented with a 9 month history of chronic discharging sinuses related to a retained shunt catheter not visible on x-ray. This case report demonstrates the importance of clinical history and investigation in patients with retained catheters presenting with cutaneous sinuses.

Ameloblastoma is a benign odontogenic tumour which commonly recurs after initial surgery; most recurrences occur at the site of the primary tumour. A rare case of recurrence of a maxillary ameloblastoma in the frontal sinuses is presented. To our knowledge there are no previous reports in the literature of a benign maxillary ameloblastoma extending into the frontal sinuses.

BACKGROUND Diagnostic imaging of the head is used with increasing frequency, and often includes the paranasal sinuses, where incidental opacifications are found. To determine the clinical relevance of such findings can be challenging, and for the patient such incidental findings can give rise to concern if they are over-reported. Studies of incidental findings in the paranasal sinuses have been...

Abstract: Both immune mechanisms, involved in inflammatory processes induced by viral and bacterial pathogens or allergy-inducing agents, non-immune mechanisms play a direct role the pathogenesis of chronic rhinosinusitis (CRS). Contrary to popular belief, infection plays much smaller role. As rule, this is secondary process – following development mucosa paranasal sinuses, its defense are disr...

      Background: Computed tomography scans (CT scan) and X-rays are used to diagnose paediatric maxillary sinusitis. This study aimed at exploring the diagnostic value of the conventional and colour Doppler ultrasounds and their specific findings in cases of paediatric sinusitis.    Methods: A total of 60 children diagnosed with sinusitis were included in this s...

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...

Mycetoma is a chronic granulomatous infection of cutaneous and subcutaneous tissues caused by filamentous bacteria (actinomycetoma) or fungi (eumycetoma). The most common site the foot, followed hand, but sometimes other body parts may also be infected. patients present with painless hard swelling mass, multiple sinuses, pathognomonic discharge grains. A 42-year-old male patient, presented pain...