Radiological Sign

Breast

within-a-Breast-in fibroadenolipoma /hamartoma of breast; benign proliferation of normal breast components – fibrous, glandular, and fatty tissues – are surrounded by a thin capsule of connective tissue Bear Paw Signdilated renal calyces with normal - renal pelvis seen in calculus disease and xanthogranulomatous pyelonephritis Boutonniere Deformityhyperextension of distal - interphalangeal joint and flexion of proximal interphalangeal joint in RA Brim Signthickening of the iliopectineal line (pelvic - brim) in Paget's disease Boomerang Signhyperintense signal in the splenium - of the corpus callosum accompanying stroke; also an MRI sign in peroneus brevis split syndrome