Anterior Interhemispheric Approach for the Surgical Treatment of Azygos Anterior Cerebral Artery Aneurysms: A Case Series.

The azygos artery is an uncommon vascular variant of the anterior cerebral artery (ACA). This anomaly is associated in a high percentage with aneurysms. Management of azygos ACA aneurysms represents a surgical challenge.

Surgical treatment of a ruptured internal carotid artery pseudoaneurysm following transsphenoidal surgery.

Development of Internal Carotid Artery pseudoaneurysms (ICAp) after transsphenoidal surgery is extremely rare, occurring only in 0.4% of cases. Surgical treatment of ICAp poses a real challenge to the neurosurgeon as treatment may require parent vessel sacrifice or artery reconstruction with bypass grafting.

[Surgical management of paraclinoid aneurysms].

Background: Paraclinoid aneurysms arise from C5 clinoid segment and C6 ophthalmic segment, within the internal carotid artery. Brain aneurysms have a frequency ranging from 5 to 11 %. A successful surgery requires knowledge of the anatomic region and the aneurysm.

Plasma cell tumor of the clivus: report of two cases.

Background: Plasma cell tumor only rarely affects the cranium and may be found as an isolated lesion or as a part of multiple myeloma. In this review we present the clinical and radiological characteristics and analyze the evolution of two cases of this tumor located at the skull base, specifically in the clivus and sellar region. We also present a brief review of the literature.

[Sellar remodeling: a surgical option for primary empty sella syndrome].

Background: The empty sella is an entity that only rarely presents signs and symptoms. When noted, visual field deficits are an indication for surgical management.

Material And Methods: We studied twenty patients with primary empty sella and visual field deficits surgically treated with a technique termed by us as "sellar remodeling.

[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.