Laparoscopic treatments of nonparasitic splenic and liver cysts in the period between March 1993 and April 1995 have been reported: partial decapsulation-fenestration and evacuation of a splenic pseudocyst in one patient, fenestration of large congenital liver cysts with total excision of a few smaller liver cysts in two patients and two unsuccessful treatments of splenic cysts. After successful laparoscopic procedures the patients experienced immediate and complete relief of the symptoms. Two years after the splenic cyst procedure and 6 months after the liver cyst operation, the patients remained free of the symptoms, and complete absence of the cysts was confirmed by computerized tomography scans. Laparoscopic fenestration of nonparasitic splenic and liver cysts with total excision of smaller liver cysts is a simple and safe surgical method with lower morbidity and a quick return to normal activity.