Gastric neoplasm: Ultrasound and CT evaluation

Komaiko, Mitchell S.

doi:10.1007/bf01887511

Cited by 12 publications

(6 citation statements)

References 8 publications

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“…Although observations have been made on 63 neoplasms, only 16 CT illustrations appear in the literature to date [2][3][4][5][6][7]9]. In the present report we record our observations on CT of gastric neoplasms illustrating the CT image in 9 additional cases.…”

Section: Discussionmentioning

confidence: 70%

CT of gastric masses: Image patterns and a note on potential pitfalls

Pillari

Weinreb

Vernace

et al. 1983

Gastrointest Radiol

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Computed tomography (CT) was performed in 9 consecutive cases of primary gastric neoplasm. Lesions were surgically or endoscopically proved; cross-sectional images are correlated to specific histopathology in each case. The CT images of leiomyoma and leiomyoblastoma are characterized as models of pure bulging intramural growth resulting in a lunate contrast distribution when imaged in the cross-sectional plane. In 5 cases of lymphoma, distortion of the contrast-filled hollow viscus is relatively consistent. Nodular growth is reflected on the CT image as a series of digitations encroaching on the opacified portion of the gastric lumen. Image pattern recognition, relative to histopathology, is of more than academic interest since endoscopy is frequently unreliable in cases of submucosal and exophytic pathology. Further, biopsy of such lesions is commonly nondiagnostic as a result of random choice of biopsy site or inadequate depth of tissue sample. Additionally, this report includes images of lesions that simulate the primary gastric pathology and may be a source of erroneous interpretation. These include: pseudocyst of the pancreas (2 cases) and enlargement of the left lobe of the liver with encroachment on the gastric lumen (1 case). Image specificity on CT examination is increasingly essential to diagnosis and surgical planning.

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Section: Discussionmentioning

confidence: 70%

CT of gastric masses: Image patterns and a note on potential pitfalls

Pillari

Weinreb

Vernace

et al. 1983

Gastrointest Radiol

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“…Because of the rarity of these lesions, diagnostic evaluation with computed t o m o g r a p h y (CT) has been reported infrequently [3,4] and has been limited to gastric lesions. The CT appearance of leiomyosarcoma metastatic to the liver has recently been described [5,6].…”

Section: Myosarcoma Computed T O M O G R a P H Ymentioning

confidence: 99%

Computed tomography of gastrointestinal leiomyosarcoma

Clark

Alexander

1982

Gastrointest Radiol

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Computed tomography (CT) was performed in 6 patients with gastrointestinal leiomyosarcoma. The characteristic CT findings were a large extraluminal mass, apparently mesenteric in location, with central areas of necrosis. These findings were present in 5 of the 6 patients. Enhancement of the rim of the tumor was seen in 2 of 3 patients who had scans before and after administration of intravenous contrast material. CT identified the site of origin of tumor in only 2 patients. The characteristic CT findings should suggest the diagnosis of gastrointestinal leiomyosarcoma.

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“…Therefore, accurate determination of the extent of tumor growth is essential for the proper management of patients with gastric cancer 1 ) . Abdominal computed tomography (CT) 2 – 10 ) and ultrasonography (US) 11 – 14 ) have been used to preoperatively predict the stage of the gastric cancer.…”

Section: Introductionmentioning

confidence: 99%

“…Abdominal CT or US can demonstrate not only the gastric wall and the perigastric tissue, but also the direct extension of tumor into the contiguous organs and the presence of distant metastases 15 ) . Some investigators have reported that abdominal CT or US provided equally accurate preoperative staging information of gastric cancer 2 – 6 , 12 – 14 ) and have claimed that it could replace the operative exploration in patients with unresectable tumor.…”

Section: Introductionmentioning

confidence: 99%

Preoperative Evaluation of the Curative Resectability of Gastric Cancer by Abdominal Computed Tomography and Ultrasonography: A Prospective Comparison Study

Kim

Jung

Song

et al. 1997

Korean J Intern Med

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ObjectivesWe compared the ability of preoperative abdominal computed tomography (CT) with that of preoperative abdominal ultrasonography (US) in predicting the extent of tumor growth and the curative resectability of gastric cancer.MethodsAbdominal CT and US were done in 95 patients with gastric adenocarcinoma. The radiologic findings were prospectively compared with surgical and pathologic findings.ResultsThe sensitivities of abdominal CT and US in detecting the perigastric lymph node involvement were 26.6% and 20%, respectively. The sensitivity of abdominal CT in predicting the pancreatic invasion (60%) was better than that of abdominal US (20%). However, there were 6 false positive diagnosis of pancreatic invasion by abdominal CT; in contrast, there was no false positive diagnosis of pancreatic invasion by abdominal US. Of 95 patients who underwent surgical exploration, 14 were found to have unresectable tumors because of extragastric organ involvement and distant metastases. Abdominal CT falsely predicted 8 of 74 cases in which curative gastric resection was impossible as resectable. Moreover, abdominal CT falsely predicted 5 of 81 cases in which curative gastric resection was possible as unresectable. Abdominal US falsely predicted 12 of 14 cases in which curative surgery was impossible as resectable.ConclusionPreoperative abdominal CT and US did not accurately predict the tumor extent and the curative resectability of the gastric cancer. Especially, abdominal CT finding of pancreatic invasion by gastric cancer should not be a contraindication for surgical exploration.

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Gastric neoplasm: Ultrasound and CT evaluation

Cited by 12 publications

References 8 publications

CT of gastric masses: Image patterns and a note on potential pitfalls

CT of gastric masses: Image patterns and a note on potential pitfalls

Computed tomography of gastrointestinal leiomyosarcoma

Preoperative Evaluation of the Curative Resectability of Gastric Cancer by Abdominal Computed Tomography and Ultrasonography: A Prospective Comparison Study

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