concentric fibroma

con·cen·tric fi·bro·ma

a benign neoplasm, actually a leiomyoma, that occupies the entire circumference of the wall of the uterus.
Farlex Partner Medical Dictionary © Farlex 2012

concentric fibroma

An extremely rare leiomyoma which is said to surround the uterine cavity; its nature is uncertain.
Segen's Medical Dictionary. © 2012 Farlex, Inc. All rights reserved.