Rare case of the inferior mesenteric artery and the common hepatic artery arising from the superior mesenteric artery.
We found a case in which inferior mesenteric artery and the common hepatic artery arose from the superior mesenteric artery, forming the common hepatomesenteric trunk, during a routine dissection carried out at Iwate Medical University in 2002. This variation is rare, but can be embryonically explained. A change in the positions of the disappearance of the ventral splanchnic arteries and the longitudinal anastomotic channel results in variations in the system of arteries distributed to the digestive organs. In the present case, the longitudinal anastomotic channel between the superior and the inferior mesenteric arteries survived to form the common mesenteric artery, which was joined by the common hepatic artery, forming the common hepatomesenteric trunk.
Department of Oral Anatomy I, Iwate Medical University School of Dentistry, Morioka, Iwate, Japan. tosawa@iwate-med.ac.jp
Tokuji
T
Osawa
Xin-Yan
XY
Feng
Nobuhide
N
Sasaki
Satomi
S
Nagato
Yoko
Y
Matsumoto
Masao
M
Onodera
Eisuke
E
Nara
Akira
A
Fujimura
Yohichiro
Y
Nozaka
D000368:Aged; D002102:Cadaver; D006499:Hepatic Artery / Q000002:abnormalities* / Q000033:anatomy & histology; D006801:Humans; D008297:Male; D017537:Mesenteric Artery, Inferior / Q000002:abnormalities* / Q000033:anatomy & histology; D017538:Mesenteric Artery, Superior / Q000002:abnormalities* / Q000033:anatomy & histology