known as aml, angiomyolipoma, which is a type of benign tumor that does have a lot of blood vessels. could be treated by embolization. there's a few other things, abnormalities within the blood vessels, themselves, that could be treated by embolization. again, it's a very short statement. purposefully vague in a few areas. they're saying it's not cancer but we're not going to tell you what it is exactly. >> in terms of length of stay for a procedure like this, is it typical to stay for several days? >> it's not typical to stay for several days. it's -- these types of procedures, embolizations can be done on an outpatient basis, go in in the morning, be able to be discharged by the end of the day. overnight can happen usually where you're monitoring the person to see if they develop any pain or any problems. several days like this is unusual. is there another procedure still coming up? we don't know the answer to that, but that's one reason