Introduction: The splenic aneurysm (AAE) is a rare disease that occurs mainly in women, being mostly asymptomatic until rupture. Clinical case: We report a case of a woman aged 65, previously healthy, who complains of pain in the left upper quadrant, two-month history, performing a CT of the abdomen showing a 4.7 cm AAE without signs of rupture. Aneurysm resection was performed with splenic preservation with no signs of complication.