Giant keratocystic odontogenic tumor of the mandible - a case report.

Background: The keratocystic odontogenic tumor (KCOT) is a relatively rare, benign neoplasm which develops in the maxilla or mandible, arising from the dental lamina or basal cells of the oral epithelium. It is often found incidentally and brings about late symptoms as it does not cause bone distension for a long time.

Case Report: The presented case is of a young woman with a giant keratocystic odontogenic tumor of the mandible.

Dolichoectasia of the circle of Willis arteries and fusiform aneurysm of basilar artery - case report and review of the literature.

Background: Dolichoectasia of intracranial arteries is a rare arteriopathy characterized by elongation and widening of the arteries and disturbance of the laminar blood flow. It involves mostly vertebral and basilar arteries. In advanced cases, formation of a fusiform aneurysm is possible.

Analysis of anatomical variations of the main arteries branching from the abdominal aorta, with 64-detector computed tomography.

Background: Great variability in the vasculature of the abdominal organs makes the pre-operative evaluation of arterial anatomical conditions extremely important and helpful. The aim of our study was to establish the prevalence of anatomical variations of the arteries branching from the abdominal aorta and to compare the results with the ones presented in the literature.

Material/methods: The material included computed tomography angiographies (CTA) of 201 patients (91 women and 110 men) performed between September 2007 and December 2008.