This is a guess only because I don't know either. To me it doesn't have that galled lumpy look growing on the wood. It looks more like the wood itself grew that way. I like Moses hope that someone else chimes in who knows more about gall.

As for your question here is a link from Baldo Villegas. Bacterial Crown Gall - Baldo Villegas' Bugs and Roses Home Page

I had a lump I noticed on the surface of the crown of rose "Alice Garnier" late winter 2016. I was sorry to see it and worried the plant was doomed, even though the plant looked OK otherwise. Well, later this summer this "lump" just crumbled off and the plant looks fine. The two photos are the same day. The plant has grown now and seems normal. ?????

Thank you! I hope so too!

We planted 3 dozen Drift Roses that, unknown to us, were infected by gall in the nursery. We removed the galls as soon as we spotted them, still we lost about half the bushes.

The good thing for you, that doesn't look like rose gall.

Shella - Be watchful that is what crown gall can do. It will reach a point where it cracks then will dry up and fall off. It will then begin to regrow. So if your plant should start to look poorly take another good look at it.

Thank you, Patty. Will do. It was the ugliest thing.

At the arboretum we lost most of the original OGR's to crown gall; many reverted to their rootstocks. We took the precaution of changing out the soil when we replanted-- a huge job-- but we haven't lost a rose since.

Despite keeping two complete sets of tools, I have lost several roses at home due to crown gall. I believe it's a coincidence. Will never know for sure!

Yes, unlike the one first asked about Sheila's plant definitely looks galled - if it were mine I would get rid of it.

Rose (Rosa spp.) and hybrids-Crown Gall

https://pnwhandbooks.org/plantdisease/host-disease/rose-rosa-spp-hybrids-crown-gall

I'll look at it tomorrow, Embothrium. Thank you.

I checked today. Looked normal, without galls/tumors. ?????? I'm leaving it and will watch closely.