Stomach cancer CT

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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]Associate Editor(s)-in-Chief: Parminder Dhingra, M.D. [2]

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Overview

Abdominal CT scan may be helpful in the diagnosis of stomach cancer. It is used to evaluate metastatic disease, especially hepatic or adnexal metastases, ascites, or distant nodal spread. Integrated PET/CT imaging can be useful to confirm malignant involvement of CT-detected lymphadenopathy. A negative PET CT is not helpful, since even large tumors with a diameter of several centimeters may not be visible on PET scan if the tumor cells have a fairly low metabolic activity.


CT scan

Demonstration of lesions facilitated by negative contrast agents:[4]

CT shows gastric cancer, source: Case courtesy of Dr Hani Salam, Radiopaedia.org, rID: 10722

PET/CT scan 

PET CT shows gastric cancer, source: Case courtesy of Dr Hani Salam, Radiopaedia.org, rID: 10722

References

  1. Sussman SK, Halvorsen RA, Illescas FF, Cohan RH, Saeed M, Silverman PM; et al. (1988). "Gastric adenocarcinoma: CT versus surgical staging". Radiology. 167 (2): 335–40. doi:10.1148/radiology.167.2.3357941. PMID 3357941.
  2. Kim SJ, Kim HH, Kim YH, Hwang SH, Lee HS, Park DJ; et al. (2009). "Peritoneal metastasis: detection with 16- or 64-detector row CT in patients undergoing surgery for gastric cancer". Radiology. 253 (2): 407–15. doi:10.1148/radiol.2532082272. PMID 19789243.
  3. Kienle P, Buhl K, Kuntz C, Düx M, Hartmann C, Axel B; et al. (2002). "Prospective comparison of endoscopy, endosonography and computed tomography for staging of tumours of the oesophagus and gastric cardia". Digestion. 66 (4): 230–6. doi:10.1159/000068360. PMID 12592099.
  4. http://radiopaedia.org/articles/gastric-carcinoma
  5. Yun M, Lim JS, Noh SH, Hyung WJ, Cheong JH, Bong JK; et al. (2005). "Lymph node staging of gastric cancer using (18)F-FDG PET: a comparison study with CT". J Nucl Med. 46 (10): 1582–8. PMID 16204706.
  6. Stahl A, Ott K, Weber WA, Becker K, Link T, Siewert JR; et al. (2003). "FDG PET imaging of locally advanced gastric carcinomas: correlation with endoscopic and histopathological findings". Eur J Nucl Med Mol Imaging. 30 (2): 288–95. doi:10.1007/s00259-002-1029-5. PMID 12552348.
  7. Kinkel K, Lu Y, Both M, Warren RS, Thoeni RF (2002). "Detection of hepatic metastases from cancers of the gastrointestinal tract by using noninvasive imaging methods (US, CT, MR imaging, PET): a meta-analysis". Radiology. 224 (3): 748–56. doi:10.1148/radiol.2243011362. PMID 12202709.
  8. Yoshioka T, Yamaguchi K, Kubota K, Saginoya T, Yamazaki T, Ido T; et al. (2003). "Evaluation of 18F-FDG PET in patients with advanced, metastatic, or recurrent gastric cancer". J Nucl Med. 44 (5): 690–9. PMID 12732669.

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