This photo displays the border of a renal infarct with coagulation on the left and viable renal tissue on the right. Acute inflammatory cells are present at the margin. Grossly, this lesion would be a pale, triangular lesion with the base of the triangle at the capsule. Renal infarcts on the basis of arterial occlusion, such as occurs with embolization, are non-hemorrhagic because of the end-arterial anatomy.
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