What characteristic angiographic features, we see in this case?
Dense early arterial network and microaneurysms, are frequently encountered in angiomyolipomas, as in this case. Also, there is lack of arterio-venous shunting. Not the brisk extravasation and pooling of contrast inferiorly.
Initial injection into the renal artery demonstrates brisk extravasation of contrast inferiorly, consistent with rapid ongoing bleeding. A microcatheter was navigated into bleeding vessel and glue was used to occlude it (not shown).