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.

[Primary central nervous system lymphoma in immunocompetent patients].

Primary central nervous system lymphoma has been traditionally described in patients with immunodeficiency syndromes; however, there is an increasing number of immunocompetent patients with this type of tumor that have been reported recently. In this paper we have retrospectively analyzed 22 immunocompetent patients with a confirmed diagnosis of primary lymphoma of the brain. The mean age in this group was 65 years with a similar male/female ratio.