background: cerebral venous-sinus thrombosis is an uncommon form but important cause of stroke, especially in young-aged women. methods: we performed a retrospective descriptive-analytical study in which 124 patients with cerebral venous-sinus thrombosis, who referred to nemazee hospital, shiraz university of medical sciences from january 2000 to march 2008, were included, and their demographic...

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 ...

introduction perforation of maxillary sinus mucous membrane is of the most prevalent complication during open sinus lift surgery. moreover, such complication can usually be managed by an absorbable membrane. as far as absorbable membranes are concerned, decellularized maxillary sinus mucous membranes, which is an extracellular matrix, can be used as a biologic scaffold and insulating membrane i...

background: patient radiation doses from computed tomography (ct) are increasing due to the number of ct examinations performed every day. the aim of this study was assess and evaluate patient radiation doses for adult’s common ct examinations to derive local diagnostic guidance levels for common ct examinations. materials and methods: volume and weighted computed tomography dose index (ctdivol...

purpose : to present a patient with radiation chiasma neuropathy, secondary to radiotherapy of paranasal sinus lymphoma who was referred for evaluation of gradual decrease of vision in both eyes case report : the patient was a 38-year-old male, with history of right maxillary sinus lymphoma, who underwent surgery, chemotherapy and radiation therapy. one year after radiotherapy, he noticed gradu...

objectives effect of using autologous platelet-rich plasma (prp) on pain reduction in patients with pilonidal abscess, subjected to extensive surgical removal tissue, was investigated through a clinical trial. patients and methods the trial was conducted on two groups from the center for surgical research at mashhad university of medical sciences located at ghaem hospital in mashhad city in 201...

Introduction: Comparison of the relationships and distance between maxillary root tips and   the maxillary sinus floor using oral panoramic in the dolichocephalic and brachycephalic compared to mesocephalic individuals. Methods: Oral panoramic images from 300 individuals were analyzed and the relationships and distance between the maxillary root tips and the sinus floor was assessed by qualitat...

introduction: the horizontal bony canal in the lateral maxillary wall is the site of anastomosis between the arterial branches from the posterior superior alveolar artery (psaa) and the infraorbital artery. this anatomic structure is known as the ‘alveolar antral artery’.   materials and methods: we performed a literature review. the anatomic location of the alveolar antral artery in the latera...

conclusions an extremely rare condition, a spontaneous intracranial pneumocephalus with skull base defect origin could be considered as a possible diagnosis in patients with sudden and severe headache. we can safely conclude that medical treatment and close follow-up is an effective mode of therapy in this patient. introduction spontaneous pneumocephalus without any pathological condition is ve...