Monro, Alexander: Observations On Crural Hernia: To Which Is Prefixed, A General Account Of The Other Varieties Of Hernia: Illustrated By Engravings (Edinburgh [u.a.], 1803)

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In fig. i st of plate 4th, the obturator artery,
having arisen along with the epigastric artery
by a common trunk, panes on the outer side *
of the hernial sac of a crural hernia, in its
course to the foramen obturatorium. Richter,
in a similar lusus naturae, describes the situa-
tion of the obturator and epigastric arteries,
in respecl: to the hernial tumour, in these
words : " De sorte que le principe du sac
soit environne en devant, en dedans par un
demicercle arteriel forme par l'obturatrice,
en dehors il y a toujours P artere epigaslri-
que."
An intelligent surgeon of this place, Mr
Thomson, ihowed me a drawing of a crural
hernia lately, in which the obturator artery,
after having arisen, along with the epigaslric,
by a common trunk, pasfes on the upper, and
then on the inner side of the neck of the her-
nial sac, and seems as if it surrounded it,
Mr
* By outer side, I mean, on the side next the anterior and
superior process of the os innominatum j by inner, that part of
the hernial sac next the pubis.