Delayed rupture of the spleen - traumatic pseudoaneurysms and A-V fistula
Delayed splenic rupture typically occurs 7-10 days following the original injury due to lysis of clot on traumatised blood vessels. Note the multiple small punctate contrast pools on arterial phase CT. This is the CT equivalent of the angiographic appearance termed 'Seurat spleen' because of a likeness to the pointillistic artwork of French impressionist Georges Seurat. There is also a traumatic A-V fistula characterized by contrast pooling and early filling of the splenic vein.