Cerebellar Tonsillar Cysts Associated with Chiari Malformation in Adults: A Short Series.

Background: Authors analyzed surgical patients with Chiari malformation (CM) associated with cerebellar tonsillar cyst. This association is quite rarely encountered in the literature.

Case Description: We retrospectively reviewed 60 surgical adult patients with MRI evaluation who underwent posterior fossa decompression for treatment of CM type I.

Anatomical variations of the celiac trunk and hepatic arterial system: an analysis using multidetector computed tomography angiography.

Objective: To analyze the prevalence of anatomical variations of celiac arterial trunk (CAT) branches and hepatic arterial system (HAS), as well as the CAT diameter, length and distance to the superior mesenteric artery.

Materials And Methods: Retrospective, cross-sectional and predominantly descriptive study based on the analysis of multidetector computed tomography images of 60 patients.

Results: The celiac trunk anatomy was normal in 90% of cases.