[Cerebellar amygdalopexy in the management of Chiari I malformation].

Background: The treatment of Chiari I malformation associated with syringomyelia is controversial.

Objective: We describe a series of patients with this disease treated during a twelve-year period. We also present clinical, surgical and radiological findings.

[Soft palate transnasal retractor].

Introduction: An anterior transoral approach allows the surgeon to access the lower portion of the clivus; to the first, second or third thoracic vertebra. It is indispensible that the teeth, lips, cheeks and tongue be retracted to avoid interposition on the surgical field. This retraction is carried out by means of a Dingman separator.

[Hypophyseal macroadenomas. A neurosurgical challenge].

Management of pituitary adenoma is a real challenge because of neurovascular structures that surround the sellar region. In this paper we included 336 patients with pituitary tumors greater than 10 mm in diameter to make an analysis of surgical results. In this group, a discrete female predominance was found, with an average of 43.