Magnetic resonance mammography of a 47-year-old patient during hormone replacement therapy (HRT) and after withdrawal of hormonal medication. (a) The T1-weighted subtraction image 180 s after contrast medium (CM) administration showed a bilateral symmetrical continuous enhancement without a plateau phenomenon or a washout effect of both breasts. (b) The signal intensity increased by about 75%. The CM enhancement was therefore curve type III. (c) A second magnetic resonance examination after stopping HRT revealed almost no visible CM enhancement. (d) Compared with the first magnetic resonance session during HRT, the time–intensity curve dropped from type III to type I. R, right; L, left.