Pediatric Intracranial Aneurysms in a Southern Brazilian Population.

Intracranial aneurysms are rare in the pediatric population, and their diagnosis can be challenging. They differ from their adult counterparts in several aspects, and hemorrhage is the most common presentation. To evaluate clinical data, aneurysm characteristics, and therapeutic results in a series of patients younger than 19 years of age with intracranial aneurysms. A retrospective cross-sectional observational study design analyzed medical records and imaging studies. Variables included age, sex, clinical presentation, comorbidities, aneurysmal characteristics, treatment modality, and clinical outcomes. We identified 15 intracranial aneurysms in 11 patients (6 male), with ages ranging from 3 months to 15 years (mean age 5.2 years). Five patients had associated medical conditions, and hemorrhage was the most frequent clinical presentation (45