Fig. 3
From: Mammography and MRI manifestations of breast angiosarcoma
A female who had a mass in her left breast for 16 months. The mass has been enlarging in a high rate for three months since she was pregnant recently. The hemosiderin ring at the edge of the hemorrhagic lesion has long T1 and short T2 signals (white arrow). a: On T1-weighted images, the lesion shows heterogeneous signal intensity. b: On fat-suppressed T2-weighted images, the lesion shows bright (high) signal intensity. c: The contrast enhanced images demonstrate heterogeneous enhancement in the early stages. d: Concentric enhancement is observed in the delayed phase