Sellar xanthogranuloma as a diagnostic challenge: a report on five cases.

Xanthogranulomas are considered rare tumors, with their sellar and non-sellar frequency ranging from 1.6 to 7% among intracranial lesions, and described as a separate entity by the World Health Organization in 2000. The diagnosis of sellar xanthogranulomas is challenging, given their uncertain origin and clinical course.

[Arteriovenous Malformations - checking and descriptive analysis of 52 AVMs treated for the 2000-2010 period].

Background: To describe our experience in treating AVMs based on age, sex, reasons for consultation and symptoms, localization and clinical diagnosis, size, types, relation with aneurysms, endovascular procedures used, postoperative results and complications.

Methods: We present 52 patients with AVMs, analysing Neurological Exam, Ct, Irm and Brain Arteriography.

Results: Average age: 37.