Seurat spleen
Review of
proximal splenic artery embolization in blunt abdominal trauma. Celiac angiogram (a) in a 22 yo female status post rollover motor vehicle accident with grade III splenic laceration shows the dorsal pancreatic artery (curved black arrow) arising from the proximal splenic artery. The dorsal pancreatic artery arises from the proximal splenic artery in approximately 50% of cases. Selective splenic angiogram (b) shows the great pancreatic artery (curved white arrow) arising from the mid splenic artery. Note the multifocal areas of contrast pooling within the splenic parenchyma consistent with multifocal traumatic injury
Seurat spleen is an angiographic appearance seen following blunt trauma to the spleen. Multiple small punctate regions of intraparenchymal contrast extravasation lead to a spotted appearance.
Pathology
Several mechanisms are thought to to attribute to this appearance which include sinusoidal stasis, traumatic artenio-venous aneurysm, contrast leakage from fragmented sinusoids, stasis of blood and contrast material within marginal sinuses because of contusion, hematoma and hypotension.
History and etymology
The term refers to a likeness between the angiographic appearance and the artwork of French impressionist Georges Seurat (1859-1891) who used a pointillist technique to create an image out of tiny dots .
Siehe auch:
und weiter:
Assoziationen und Differentialdiagnosen zu Seurat Milz (Angiographie):