[Role of arteriography and x-ray computed tomography in the current evaluation of pigmented villonodular synovitis].

The angiographic characteristics of five surgically proven cases of pigmented villonodular synovitis are reported. A CT scan was performed in one case. CT scan arthrography is very useful when it demonstrates regions of high attenuation. The angiography never demonstrated in the five cases capillary blush nor arteriovenous shunting, but a regular hypervascular mass. These findings are helpful for the surgeon suggesting the best surgical approach and the best site of biopsy.