Anyone Had a "Back Mouse" or "Sacral Lipoma"?

Has anyone heard of or experienced what is referred to as a “back mouse” or a Sacral lipoma, from what i have read they are a fatty hernia that protrudes through the fascia in the lower back region that can sometimes carry nerves with them causing extreme back pain when they become inflamed. I’m 99% sure that this is my issue just wondering if anyone has had this problem before and if having it surgically removed and the fascia stitched back shut is the only route for permanent relief?