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Background: Leiomyosarcomas are rare tumours, predominantly localized in the stomach, small intestine and retroperitoneum. Only one case of primary leiomyosarcoma of the spleen is described in human beings in literature.

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Background:The PICC is a central venous system inserted in the peripherally vein. The central peripheral catheter catheter system (PICC=peripherally inserted central catheters) is a widely used procedure in clinical practice by medical and nurse team. PICC has potential complications that are rare but not entirely irrelevant. It is used for continuous and discontinuous treatment and, after a correct insertion procedure, it can be used for a period of time between 1 week to 3 months. The last-generation dispositive has an high-biocompatibility due to the high quality of the materials (silicone or polyurethane), a total length of 40-60 cm and a diameter between 16 to 25 Gauge or 2 to 5 French. Aims:The aim of our study is to evaluate the trombotic risk related to the positioning of the device in relation to the individual risk factors. Therefore we have elaborated the CoRaMaPicc protocol that allows, based on the preliminary data evaluation, to reduce the trombotic risk in patients with high cardiovascular risk profile. Methods:The study has started in July 2016. We have enrolled 30 patients (18 males and 12 females with range age of 30-99 yrs and mean age of 82+13,5 yrs). Enrolled patients have Body mass Index or (BMI) with range from 16,3-26,5 Kg/mq and mean BMI value of 23,5+2,5 Kg/mq. Enrolled patients were subjected to laboratory