R enal cell carcinoma (RCC) represents 3% of adult malignancies, and it affects approximately five to 13 patients per 100,000 individuals in Western countries.1,2 RCC has the propensity to enlarge rapidly and disseminate locally, which frequently results in a highly vascular tumor with local structural invasion. As a result, patients with RCC often present with gross hematuria, flank pain, and ...

uterine arteriovenous malformations (avms) are relatively rare disorders that can cause life-threatening vaginal bleeding. we describe three childbearing-age females, who had abdominal pain and heavy vaginal bleeding, and were diagnosed as uterine avm by color doppler and angiography. the patients received successful superselective transarterial embolization (tae) with n-butyl cyanoacrylate (nb...

Hemangiopericytoma is a rare primary tumor originating from Zimmerman's pericytes, with significant metastatic potential. Hepatic metastatic disease requires an aggressive approach by a multidisciplinary team of dedicated oncology specialists, to prolong survival in selected patients. We report on a patient with recurrent hepatic metastases of grade II intracranial hemangiopericytoma 5 years af...

AIM To present our experience on transarterial treatment of dural arteriovenous fistulas (DAVFs) with ONYX in adult patients. MATERIAL AND METHODS Between March 2008 and November 2012, 27 adult patients with DAVFs treated by transarterial ONYX embolization were included. Clinical data, including hospital records, operative reports, and angiograms, were reviewed and analyzed. RESULTS Complet...

Anti-neutrophil cytoplasmic antibody-associated vasculitis (AAV) is a group of autoimmune diseases that normally affects multiple organs. Recurrent gastrointestinal (GI) bleeding, a critical complication of AAV, remains a challenge. Here, we report a case of AAV complicated by pulmonary hemorrhage, severe recurrent gastrointestinal bleeding, and rapid progressive renal insufficiency that was tr...

An intrahepatic arterioportal fistula is a rare cause of portal hypertension and variceal bleeding. We report on a patient with an intrahepatic arterioportal fistula following liver biopsy who was successfully treated by hepatectomy after unsuccessful arterial embolization. We also review the literature on symptomatic intrahepatic arterioportal fistulas after liver biopsy. A 48-year-old male wi...

Total occlusion of dural arteriovenous fistulas (DAVFs) via transarterial embolization is difficult due to the rich anastomotic network of the dural/falcine plethora of feeding arteries, blood supply to cranial nerves, and extracranial to intracranial anastomoses. Incomplete occlusion of the fistulas will result in recanalization of the DAVF from the multiple collateral arteries constituting th...

PURPOSE Angiographic finding including venous drainage pattern should be correlated to the presenting symptom pattern (SxP) in CSDAVF. We present outcome of CSDAVF management and suggest a strategy according to SxP and type of treatment based on our experience. MATERIALS AND METHODS We evaluated SxP, angiographic type (proliferative, restrictive or late restrictive), mode of treatment (emboli...

OBJECTIVE Vascular malformations are uncommon pathologic entities in which surgery is usually not possible or is inefficient. Our experience with the percutaneous treatment of peripheral vascular malformations, by means of transarterial embolization or direct puncture is here reported. MATERIAL AND METHODS During the 1993-1997 period a total of 35 patient, 20 females (57%) and 15 males (43%) ...