Lobular BC is known as the "sneaky BC" It forms in links and sheets of malignant cells. Where as Ductal tends to clump and form an easier to detect lump. I did not have very good and thorough surgeons , oncologists or nurse nor a very good insurance plan where I was at first for 7yrs. of this journey. I tried to be on top of things and at diagnosis and did the recommended masectomy. I would now that I am alive to tell you this 13 yrs later get a double mastectomy.
I don't necessarily believe the 1-3% chance for reccurrence , It depends on how vigilant yr drs etc. are and I think your own general approach to your health as a whole and of course other unknowns since BC is so varied. I think lobular if you have only a lumpectomy has a higher than 3% chance of returning espec. if it was in 2 lymph nodes.