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|author1=[[User:Rhcastilhos|Rodrigo Horstmann Castilhos]]
|author2=[[User:Mikael Häggström|Mikael Häggström]]
|author3=
}}
Also known as Wilkie's syndrome, this condition occurs when the third part of the duodenum is compressed between the superior mesenteric artery and the aorta. Under normal conditions, there is retroperitoneal fat around the third part of the duodenum, which avoids compression by creating an aortomesenteric angle > 28º.
==Planning==
{{Superior mesenteric artery syndrome - Indications and choice of modality}}
==Evaluation==
Measure the following relations between the aorta and superior mesenteric artery:
* Aortomesenteric angle, where <25º indicates the condition<ref name=CardarelliLeite2016>Cardarelli Leite, Leandro et al. Abdominal vascular syndromes: characteristic imaging findings. Radiol Bras [online]. 2016, vol.49, n.4 [cited 2019-07-12], pp.257-263. Available from: <http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-39842016000400011&lng=en&nrm=iso>. ISSN 0100-3984. http://dx.doi.org/10.1590/0100-3984.2015.0136.</ref>
* Aortomesenteric distance, where a distance <8 mm indicates the condition<ref name=CardarelliLeite2016/>
Also exclude:
*Compression of the left renal vein.<ref name=Medscape/>
*Portal venous pneumatosis<ref name=Medscape/>
*Abdominal aortic aneurysm,<ref name=Medscape/> see [[CT of abdominal aortic aneurysm]].
{{Bottom}}
|author1=[[User:Rhcastilhos|Rodrigo Horstmann Castilhos]]
|author2=[[User:Mikael Häggström|Mikael Häggström]]
|author3=
}}
Also known as Wilkie's syndrome, this condition occurs when the third part of the duodenum is compressed between the superior mesenteric artery and the aorta. Under normal conditions, there is retroperitoneal fat around the third part of the duodenum, which avoids compression by creating an aortomesenteric angle > 28º.
==Planning==
{{Superior mesenteric artery syndrome - Indications and choice of modality}}
==Evaluation==
Measure the following relations between the aorta and superior mesenteric artery:
* Aortomesenteric angle, where <25º indicates the condition<ref name=CardarelliLeite2016>Cardarelli Leite, Leandro et al. Abdominal vascular syndromes: characteristic imaging findings. Radiol Bras [online]. 2016, vol.49, n.4 [cited 2019-07-12], pp.257-263. Available from: <http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-39842016000400011&lng=en&nrm=iso>. ISSN 0100-3984. http://dx.doi.org/10.1590/0100-3984.2015.0136.</ref>
* Aortomesenteric distance, where a distance <8 mm indicates the condition<ref name=CardarelliLeite2016/>
Also exclude:
*Compression of the left renal vein.<ref name=Medscape/>
*Portal venous pneumatosis<ref name=Medscape/>
*Abdominal aortic aneurysm,<ref name=Medscape/> see [[CT of abdominal aortic aneurysm]].
{{Bottom}}
