BACKGROUND Cancers of the paranasal sinuses or nasal cavity are the most common malignant tumors of the anterior skull base. Several types of tumors occur in this location, including cancers of endodermal, mesodermal, and epidermal origins. Although anterior skull base surgery is a relatively recent approach in treating these tumors, widespread changes have already occurred in procedural method...

background: the knee joint is prone to injury because of its complexity and weight-bearing function. anterior cruciate ligament (acl) ruptures happen in young and physically active population and can result in instability, meniscal tears, and articular cartilage damage. the aim of this study is to evaluate the accuracy of lachman and anterior drawer test in acl injury in compare with arthroscop...

introduction:neurogenic mediastinal tumors comprise a wide range of benign and malignant diseases. a group of these tumors, located at thoracic apex, sometimes spread to cervical spaces causing numerous surgical difficulties. in thoracotomy approaches, due to proximity of the tumors to major blood vessels, complete removal of these tumors from cervical spaces is impossible or may cause intraope...

introduction: although coronary endarterectomy is not an ideal procedure, it is the only available option for cardiac surgeons in some patients with diffuse coronary artery disease. based on the majority of conducted studies, the results of coronary endarterectomy (including survival, graft patency, and recurrence of the symptoms of myocardial ischemia) are less prevalent than standard coronary...

purpose: to evaluate the influence of donor characteristics (age, death-to-preservation time, preservation-to-surgery time, graft rating, and endothelial cell features) on clinical outcomes following deep anterior lamellar keratoplasty (dalk) in patients with keratoconus. methods: in this retrospective study, 290 consecutive keratoconic eyes underwent dalk using donor corneas of different quali...

purpose: to compare the clinical and paraclinical outcomes following deep anterior lamellar keratoplasty (dalk) using frozen versus fresh corneas in patients with keratoconus. methods: in this prospective, comparative interventional study, 16 frozen and 19 fresh corneas were used during dalk in keratoconus patients. big bubble technique was used in all patients. the two groups were compared at ...

introduction anterior talofibular ligament (atfl) rupture is the most commonly injured anatomic structure in lateral ankle sprain. in some cases, atfl avulsion fracture from the lateral malleolus may occur instead of purely ligamentous injuries. the atfl avulsion fracture is detected as a small ossicle at the tip of lateral malleolus on direct radiographs, which is called os subfibulare in chro...

INTRODUCTION Virtual endoscopy is a new 3D technique which permits to depict the inner surface of anatomic cavities. We report our experience in the study of the nasal cavity and paranasal sinuses. MATERIAL AND METHODS CT examinations of the maxillofacial region were obtained using 1.5 or 3.0 mm slices, 1.5 or 3.0 mm table feed, 120 kV, 140 mA, 2 s scan time, standard and high resolution algo...

AIMS When targeting the interventricular septum during pacemaker implantation, the lead may inadvertently be positioned on the anterior wall due to imprecise fluoroscopic landmarks. Surface electrocardiogram (ECG) criteria of the paced QRS complex (e.g. negativity in lead I) have been proposed to confirm a septal position, but these criteria have not been properly validated. Our aim was to inve...

Anterior sacral meningocele (ASM) is a rare congenital anomaly, characterized by herniation through a defect in the anterior aspect of the sacrum. We reported a case of ASM associated with neurofibromatosis, which was mimicking a complex ovarian cyst in ultrasonography. ASM can easily be misdiagnosed as an ovarian cyst and needle aspiration can cause intracranial hypotension syndrome or even de...