title: Anatomical discrimination of the differences between torn mesentery tissue and internal organ-surface primo-vessels.
abstract: The most difficult step in the morphological study of the internal organ-surface primo-vessel (Bong-Han duct) system is the correct identification of samples, due to similarities between torn mesentery and primo-vessel tissue. Without proper sample discernment, the subsequent parts of morphological studies cannot be trusted. Here, we present differences between torn mesentery and primo-vessel tissues as determined by minimal operation, using stereoscopic and microscopic observation. Stereoscopic observation revealed that torn mesentery is tightly connected to the organ surface and does not branch; the detached margin has a fan-shaped membrane without any swollen portions. Primo-vessels are slightly connected to the organ surface and branched, while detached margins lack a membrane and possess a swelling termed the primo-node (Bong-Han corpuscle). Microscopic observation shows bundle patterns in primo-vessel tissue, but irregular arrangement in torn mesentery tissue. These characteristics can be used to distinguish torn mesentery from primo-vessels.
authors.affiliation: Division of Standard Research, Acupuncture, Moxibustion and Meridian Research Center, Korea Institute of Oriental Medicine, Daejeon, Korea.
authors.forename: Sanghun
authors.initials: S
authors.lastname: Lee
authors.forename: Yeonhee
authors.initials: Y
authors.lastname: Ryu
authors.forename: Yungju
authors.initials: Y
authors.lastname: Yun
authors.forename: Sungwon
authors.initials: S
authors.lastname: Lee
authors.forename: Ohsang
authors.initials: O
authors.lastname: Kwon
authors.forename: Jaehyo
authors.initials: J
authors.lastname: Kim
authors.forename: Inchul
authors.initials: I
authors.lastname: Sohn
authors.forename: Seonghun
authors.initials: S
authors.lastname: Ahn
mesh_terms: D000818:Animals; D001808:Blood Vessels / Q000033:anatomy & histology*; D007422:Intestines / Q000033:anatomy & histology / Q000098:blood supply*; D016740:Meridians; D008643:Mesentery / Q000033:anatomy & histology* / Q000098:blood supply; D051381:Rats; D017207:Rats, Sprague-Dawley