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Obsidio™ Conformable Embolic

Case study

Renal mass embolization

Courtesy of Osmanuddin Ahmed I University of Chicago


71-year-old male presented with acute onset right flank pain and was found to have a perinephric hematoma secondary to a ruptured complex right renal cyst.


The right femoral artery was accessed. An RDC catheter was utilized to catheterize the right renal artery and angiography was performed. A right renal mass arises from the inferior pole of the right kidney which is supplied by the lower pole renal artery. There is a pseudoaneurysm arising from the upper pole renal artery. There is no evidence of active hemorrhage. 

A 2.8 F microcatheter/microwire tandem was advanced into the inferior pole renal artery. Arteriography demonstrates the renal mass arises from the inferior pole of the right kidney. 0.4 mL of Obsidio Embolic was injected through the microcatheter and follow-up arteriography demonstrates  complete stasis in the artery supplying the renal mass.


One-month post-procedure CT demonstrates decrease in size of subcapsular right perinephric hematoma and decrease in size of the renal artery aneurysm.

Scan images from Obsidio case.

Results from case studies are not necessarily predictive of results in other cases. Results in other cases may vary.