Hepatic Hemangioma Question

A year ago I had a routine u/s and they found 2 7mm lesions that appeared to be benign hemangioma.  I had a follow up MRI and only one was visualized and it again, appeared to be hemangioma.  A u/s 6 months later showed it to be completely stable.

Last week, I had a follow up u/s shows that there are now THREE lesions.  The previous 2 are measuring 9mm and the third one is 8mm.  Again, they still give the appearance of hemangioma.

I'm a little alarmed.  Here's what the doc says:  the difference b/n 7mm and 9mm is within the margin of error for lesions that small and do not necessarily indicate growth.  The third lesion was probably there all along and just not visualized.  He and the radiologist want to follow up with ultrasound in 6 months.  He says he cannot rule out HCC without actually removing them but that no surgeon would mess with 3 tiny lesions that look like hemangioma (and I wouldn't elect that option if it were presented) but that he feels these are harmless.

Any thoughts?  

[HCA]

I too have a hemangiama on the liver detected by MRI.
It did not present on ultrasound.
The consultant hepatologist viewed the image together with the radiologist arnd are confident it is not HCC.
They point being that although they cannot actually rule out HCC it is unlikely.
The fact that yours have been flagged and are being monitored is obviously helpful.
I certainly haven't been concerned about this as they are fairly common,so you probably don't have anythiing much to worry about.