50 year old female with a prominent coumadin ridge. The study was performed using a 1.5 Tesla scanner (Inter CV, Philips, Best, The Netherlands). The CMR signals were received by a 5-element cardiac phased -array coil and ECG gating. This is a systolic frame of a multi-phase balanced SSFP cine (Echo time (TE) 1.7ms, Repetition time (TR) 3.5ms, flip angle 60 degrees, SENSE factor 2, matrix 192 × 192, field of view 320–460mm, slice thickness 6mm, 24 phases per cardiac cycle, 1 slice per breath-hold) acquired in a modified double oblique orientation demonstrating the incidental mass-like structure (arrow) in the left atrium (LA).