Our results revealed that the inferior edge of the median arcuate ligament remained distant from the celiac trunk in 14.46% out of the 83 cadavers (Fig.
The touch of the celiac trunk by the median arcuate ligament was observed in 42.17% of the cadavers, this result different from those found by Brunet et al.
The term "touch" here used means the contact between the median arcuate ligament and the origin of the celiac trunk.
In 43.37% of the cadavers, we observed that the median arcuate ligament was overlapping the celiac trunk, which is not in accordance to 21.05% mentioned by George and those 10% reported by Brunet et al.
Lindner & Kemprud (1971) showed among 72 non-fixed cadavers, 20 (26%) had the origin of the celiac trunk touching the free edge or below the median arcuate ligament, differing from the 71 (85.54%) cadavers found in this study with the median arcuate ligament touching or overlapping the celiac trunk.
Some authors admit that the higher origin of the celiac trunk in the aorta, the lower insertion of the median arcuate ligament or both conditions may explain the anatomic anomaly of the celiac trunk in the compression syndrome (Hivet & Lagadec; Warter et al., 1970b; Lindner & Kemprud and Tridico et al.).
Although it was not our objective to study skeloctopy of the celiac trunk and the median arcuate ligament, we observed some variations in the position of the celiac trunk, sometimes in T12 and in others L1 or L2.
There are controversies on the concept of the own structure, limits and types of the median arcuate ligament. In our study, in five cadavers it was observed the median arcuate ligament in a triangle shape interconnecting the two crura and with no skeleton muscular fibers on it and the basis covering the celiac trunk, finishing like a fibrous ring which formed the inferior margin of the diaphragm crura (Figs.1, 8).
In the histological analysis of the median arcuate ligament, we could observed the presence of dense connective tissue with collagenous fibers infiltrated by adipose cells, blood vessels and nerves.