Omentum

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omentum

[ō′ment·əm]
(anatomy)
A fold of the peritoneum connecting or supporting abdominal viscera.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
The following article is from The Great Soviet Encyclopedia (1979). It might be outdated or ideologically biased.

Omentum

 

a broad and long fold of visceral peritoneum containing areolar tissue rich in blood vessels and fat deposits between its layers. The greater omentum, which consists of four peritoneal layers, originates at the greater curvature of the stomach, becomes attached to the transverse colon, and, covering the intestine anteriorly, descends in the form of an apron. The greater omentum performs a protective function in cases of traumas and inflammatory diseases of the organs of the abdominal cavity, such as appendicitis. The lesser omentum is a double peritoneal fold that stretches between the liver, the upper part of the duodenum, and the lesser curvature of the stomach.

The greater omentum is frequently used both to cover sutures applied during operations of the stomach and intestine and to tamponade wounds of the liver and spleen. Omentitis is an acute inflammation of the greater omentum that may result if the greater omentum is infected, twisted, or injured; this condition is accompanied by the symptoms of acute abdomen.

The Great Soviet Encyclopedia, 3rd Edition (1970-1979). © 2010 The Gale Group, Inc. All rights reserved.
References in periodicals archive ?
Although omental infarction is known as a disease of the pediatric age group, it can be seen in older patients, as in our case.
The treatment TMR1 attained the highest (P<0.05) fat values 0.91, 0.76 and 0.41kg for omental, mesentery and kidney-knob and channel, respectively.
This retrospective diagnostic accuracy review of cases was conducted at Aga Khan University Hospital, Karachi, and comprised records of all patients who underwent CT scans from February 2007 to February 2016 for abdominal distention and had omental biopsy.
Graham's Omental patch closure is the commonest procedure in this study, done in 59 (75.64%) patients.
Omental torsion is a very rare clinical condition having commonly peritonitis signs, in which edema, vascular stasis, ischemia, and necrosis are seen distal to the torsion because of the rotation of the omentum magus around the long axis and deterioration of arterial feeding and venous drainage secondary to this.
No patient underwent lumbar sympathectomy prior to omental transplantation.
(9) The findings of darker fibrous appearing signal on T2-weighted MRI in a whorled pattern and the lack of ascites or omental caking favors DPL as the most likely diagnosis especially when a patient has a coexisting fibroid uterus or has undergone a hysterectomy for a leiomyomatous uterus.
(2009) have found gasless laparoscopic technique useful in steers, in our study insufflation of the abdomen with C[O2] pressure maintained at 25 mm of Hg was found to facilitate separation of omental attachments in abdomen and clear visualization of the abdominal organs such as the ovaries and uterus.
tuberculosis complex was isolated from our patient's omental tissue culture.
However, after careful comparison with a previous CT scan done 3 years earlier, a long aberrant omental artery demonstrating a cockscrew pattern arising from the left gastro-epiploic artery was noted terminating in a large fat containing structure within the lower right abdomen.
Histological examination of omental and peritoneal biopsies disclosed the presence ofnoncaseating, nonnecrotic, sarcoid type granulomas containing multinucleated giant cells (Figures 1 and 2).
Histology report confirmed omental torsion (serosal fibrinous exudate containing acute and chronic inflammatory cells with marked fibrotic reaction and hemorrhagic congestion).