Abstract
Nonparasitic splenic cysts (NPSCs) are uncommon lesions of the spleen,clinically, they may be asymptomatic. Their classification includes two basic groups: the true cysts or primary cysts and false or pseudo cysts based on the presence or absence of an epithelial lining. The need for surgery of nonparasitic cysts is due to the development of complications: suppuration, hemorrhage into the cavity of the cyst and its rupture. Historically, the conventional surgical method was splenectomy, however, complete removal of the organ, especially at a young age, often led to life-threatening infectious complications. Spleen-preserving surgeryis considered to be analternative to classicalsplenectomy: partial resection of the spleen and fenestration with excisionof extra-hepaticcyst wall. However, as clinical practice has shown, these methods can be effectively used exclusively for the treatment of superficial cysts, and during the operation the ruptures of the capsule of the pathological focus with bleeding are observed. According to the general tendency in surgery to reduce the traumatization all patients were worked up with an ultrasound and X-Ray examination of the abdomen to look for the size and location of the splenic cysts. These operations include: drainage with sclerosing of the cyst and deepithelialization with superselective arterial embolization of the feeding vascular pedicle of the pathological focus. The study of these techniques revealed their weak points: the recurrence rate of cysts after sclerosis was 30-50%, and the use of embolizing agents in 50% of cases is complicated by ischemia of an organ segment with possible formation of an infarction zone in the early postoperative period. Nowadays the most promising method is considered to be a microwave ablation. Its thermal effect creates coagulation necrosis of the pathological focus and surrounding tissues with minimal toxic effects. This approach decidedly requires further research.
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