抄録
This study was undertaken to find a clue to reducing loss of blood during myomectomy. Corrosion-casting specimens (blood vessel mold samples) were prepared from uterine myoma to observe the angioarchitecture surrounding the uterine myomnodes. A laser beam was radiated to the blood vessel mold samples and the amount of transmitted beams was measured to find the degree of vasculatity in the myomnodes and uterine body regions.
The following results were obtained :
1) In a comparison between subserous and intramurales myomas as to the formation of the vascular plexus externally surrounding the myoma muscle a partial defect of the vascular plexus was observed in most cases of subserous myoma.
2) A study of the size of the myomnodes and the intrusion of blood vessels in the nodes revealed that myomnodes smaller than the size of a golf ball had fewer vessels invaded.
3) The number of vessels intruding into the myomnodes was not more than all being less than 1 mm in their lumen.
4) An investigation of the size of the myomnodes and the number of fairly large vessels (lumen : more than 1 mm) contained in the externally surrounding vascular plexus disclosed that large vessles existed in most vascular plexuses externally surrounding myomnodes larger than the size of a golf ball.
5) Measurements of the amount of transmittance of the laser beam showed that the angioarchitecture of the uterine body where no myomnodes existed was denser than that of the uterine body where myomnodes were present.
6) The vascular distribution in the transversal axis direction (a direction connecting the oviduct angles on both sides) of the uterine body seemed to be denser than that in the longitudinal axis direction, but no significant differences were observed in the present study.
