lesser omentum


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Related to lesser omentum: Lesser sac

lesser omentum

[′les·ər ō′men·təm]
(anatomy)
A fold of the peritoneum extending from the lesser curvature of the stomach to the transverse hepatic fissure.
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Ultrasonography can show a solid, localized, noncompressible hyperechoic mass suggestive of inflammed fat;[sup][3] CT of the abdomen can show a characteristic whirling fatty and fibrous mass near a vascular pedicle, a spiral fatty mass with a whirling pattern, or a circumscribed fatty mass with hyperattenuated streaks and a concentric distribution of fibrous folds.[sup][2],[3] In this case, CT of the abdomen showed a whirling hyperattenuated streaks originating from the lesser omentum. Although the whirling pattern of omental torsion has been documented in the literature, not all omental torsion cases showed such characteristic findings.
In the first part (Supraduodenal) of its course, it lies in the right free margin of the lesser omentum in front of opening into lesser sac.
Furthermore, it is only possible to confirm the presence of an accessory artery by pulsation and inspection inside the lesser omentum in a living during surgery and despite this, sometimes thin accessory arteies (e.g.
There are some lymph nodes in the lesser omentum and many in the greater omentum (12).
On laparotomy cyst was found enclosed within the layers of lesser omentum [Fig.
The dorsal mesentery gives rise to the lesser omentum, falciform ligament and the visceral peritoneum of the liver.
A case of abnormal peritoneal fold connecting the greater omentum with the liver, gall bladder, right kidney and lesser omentum has been observed (Satheesha, 2009).
In non-fixed cadavers, the celiac trunkwas reached by the omentum, opening the flaccid part of the lesser omentum. Ganglions and the nervous tissue of the celiac plexus, involving the initial segment of the celiac trunk, were withdrawn with the aid of a pincer and scissor to allow observing disposition of these inferior phrenic arteries at the celiac trunk.