Primary tumours of the greater omentum

Ishida, Hideaki; Ishida, J.

doi:10.1007/s003300050594

Cited by 43 publications

(45 citation statements)

References 11 publications

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“…Metastatic and recurrent tumors of the omentum are common, whereas primary tumors of the omentum are rare [2]. Omental tumors are commonly observed in leiomyosarcoma, hemangiopericytoma, and fibrosarcoma, but liposarcoma occurs in only 1 % of patients [6].…”

Section: Discussionmentioning

confidence: 99%

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Primary omental pleomorphic liposarcoma identified at autopsy in a living donor kidney transplant recipient

et al. 2012

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Metastatic and recurrent tumors of the omentum are common, but primary omental pleomorphic liposarcoma (POPL) is an extremely rare type of solid omental tumor. We describe the case of a patient with POPL who received a renal transplant from a living donor. Despite good allograft function, the volume of peritoneal fluid gradually increased. An exploratory laparotomy could not be performed because the patient was obese and developed hemodynamic instability. Therefore, a shunt was placed between the peritoneal cavity and the internal jugular vein using the Denver Ò shunt system; however, the patient died of respiratory insufficiency. On the basis of the autopsy results, we diagnosed the patient's condition as POPL. We speculated that the malignancy did not originate directly from the donor cells. We report POPL in a living donor renal transplant recipient.

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Section: Discussionmentioning

confidence: 99%

“…Metastatic and recurrent tumors of the omentum are common, but primary tumors of the omentum are relatively rare [2]. Primary tumors of the omentum were first described by Stout in 1943 as a hemangiopericytoma [3].…”

Section: Introductionmentioning

confidence: 99%

Primary omental pleomorphic liposarcoma identified at autopsy in a living donor kidney transplant recipient

et al. 2012

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“…Secondary tumors are from seeding or distal hematogenous metastasis. Omental tumors are also cystic (omental cysts) of solid [23,24]. Of the solid tumors, the most common is metastasis (colon, stomach, pancreas, and ovaries) producing omental cake (Fig.…”

Section: Mesenteric Tumorsmentioning

confidence: 97%

“…22) [27]; however, MRI is not widely used in peritoneal carcinomatosis. Computed tomography is by far the most popular imaging modality [23,28]. It provides direct visualization of the primary and secondary tumors.…”

Section: Imaging Modalitiesmentioning

confidence: 99%

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Peritoneal carcinomatosis

Raptopoulos

Gourtsoyiannis²

2001

Eur Radiol

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The peritoneum is a mesothelial lining of the abdominal cavity (parietal) and intraperitoneal viscera (visceral). The cavity contains a small amount of fluid, which circulates from cephalad to caudal to cephalad, influenced by negative pressure under the diaphragm during exhalation, gravity, and bowel peristalsis. Peritoneal reflections and mesenteries divide the cavity into various compartments (supramesocolic, inframesocolic, and pelvis). These reflections support the peritoneal organs and provide vascular and nervous connections while within the cavity they influence pathway of intraperitoneal fluid circulation. Capillary force over convex surfaces influence stasis of fluid and promotes peritoneal seeding; thus, there are numerous areas in which peritoneal masses are seen more commonly. These areas include the undersurface of the diaphragm (negative pressure and capillary force), the omentum (bathed in fluid), the right lower quadrant (oblique course from left superior to right inferior of the small bowel mesentery), the left lower quadrant (transverse course of the sigmoid), and the pelvis (gravity). Peritoneal carcinomatosis may be either primary (mesothelioma) or metastatic. The mode of spread is by direct invasion, lymphatic permeation, peritoneal seeding or hematogenous. The imaging patterns include fibronodular stranding, nodules, plaques, and masses. Mesenteric thickening may produce pleated or stellate patterns. Spiral CT is the most useful modality in diagnosis and follow-up of peritoneal tumors.

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