Celiomesenteric trunk: New classification based on multidetector computed tomography angiographic findings and probable embryological mechanisms

Table 1 New definition and classification for description of celiomesenteric trunk

Definition and type	Description
Definition
CMT	We defined the CMT as a single common trunk arising from the aorta and its branches including the SMA and at least two major branches of the celiac trunk
Type (abbreviation)
HGSM trunk (type I)	Hepato-gastro-spleno-mesenteric trunk
HSM trunk + LGA (type II)	Hepato-spleno-mesenteric trunk with LGA arising from the aorta
GSM trunk + CHA (type III)	Gastro-spleno-mesenteric trunk with CHA arising from the aorta
HGM trunk + SA (type IV)	Hepato-gastro-mesenteric trunk with SA arising from the aorta
Other (type V)	Any other variation that meets the above definition of the CMT

CMT: Celiomesenteric trunk; SMA: Superior mesenteric artery; LGA: Left gastric artery; CHA: Common hepatic artery; SA: Splenic artery; HGSM: Hepato-gastro-spleno-mesenteric; HSM: Hepato-spleno-mesenteric; GSM: Gastro-spleno-mesenteric; HGM: Hepato-gastro-mesenteric.