[Hemangiopericytoma malignum pelvis].

Haemangiopericytoma is an uncommon tumour of vascular origin. We report a case of one of the rarer sites of this tumour in man: pelvic paravesical site. We report case of 47 years old man with pelvic hemangiopericytoma and discuss imaging studies and pathohystological findings. Although modern imaging techniques have provided useful information concerning the hypervascular and clearly demarcated appearance of this tumour which displaces but does not invade adjacent organs, its diagnosis can only be established by histology. Its degree of malignancy and its invasive potential are unclear. The risk of local recurrence and metastases in more than one half of cases justifies wide surgical excision, possibly combined with adjuvant radiotherapy, and long-term follow-up. That is to say, that hemangiopericytoma malignum pelvis is the very rare sites of this tumour and till now it is not reported in Bosnia and Herzegovina.