Pelvic brim sign
The pelvic brim sign is seen in the AP view of the pelvis and refers to a thickening of the pelvic brim outlined by the iliopectineal line. It is due to an osteoblastic reaction seen and first described in Paget disease, which leads to cortical thickening and sclerosis 1.
- MARSHALL TR, LING JT. THE BRIM SIGN; A NEW SIGN FOUND IN PAGET'S DISEASE (OSTEITIS DEFORMANS) OF THE PELVIS. (1963) The American journal of roentgenology, radium therapy, and nuclear medicine. 90: 1267-70. Pubmed