Computed anatomical modelling of the optic pathway and oculomotor system using magnetic resonance imaging.

This study presents a computer-based tool for three-dimensional (3D) visualization of the optic pathway and oculomotor system using 3D high-resolution magnetic resonance imaging (MRI) datasets from a healthy subject. The 3D models were built as wireframe grids co-registered with MRI sections. First, 3D anatomical models were generated of the visual pathway from the eyeball to the primary visual cortex and of the cranial oculomotor nerves from the brain stem to the extrinsic eye muscles.

Conservative management of burst fractures of the fifth lumbar vertebra.

Isolated fractures of the lumbar fifth vertebrae (L5) are very rare, and there is little information in the literature regarding comparisons between conservative management and surgical treatment of this entity. This retrospective analysis reports on five cases of isolated burst fractures of the fifth lumbar vertebra without neurologic deficit. All cases were managed nonoperatively with a short period of bed rest followed by protected mobilization.

[Tortuosity of the internal carotid artery and its implications for the oropharyngeal and skull base surgery].

Conventional textbooks on anatomy emphasize the consistency in the pathway of the cervical internal carotid artery (ICA) from the carotid bifurcation to the skull base. Deviations in its route as result of developmental and acquired conditions have received little attention in the literature. A case of a tortuous cervical ICA presenting as pharyngeal pulsatile swelling is presented.