Non-parasitic cysts of the spleen are uncommon and often result from blunt abdominal trauma. These lesions are classified as splenic pseudocysts. Until recently, splenectomy has been the primary choice of treatment of these pseudocysts. The trend for treatment of spleen cysts is now towards a conservative management. The case reported herein is an example of a post traumatic splenic pseudocyst successfully treated with a conservative approach (ultrasound aided percutaneous drainage). In most tropical countries, also in view of lack of resources and expertise, a conservative non-surgical of post-traumatic spleen cysts management could be appropriate and feasible under certain circumstances.