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Angiosarcoma. (A) Axial T1-weighted black blood image showing a large infiltrative heterogeneous signal mass. Central areas of high T1 signal suggest the presence of intra lesional haemorrhage (arrows). (B) Axial T2-weighted black blood image showing the tumour to contain areas of very high T2-signal change in keeping with oedema and some areas of low signal intensity suggestive of necrosis. RV, right ventricle; LV, left ventricle.
