Pseudomyxoma peritonei MRI: Difference between revisions
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Abdominal MRI is helpful in the diagnosis of pseudomyxoma peritonei. On abdominal MRI, pseudomyxoma peritonei is characterized by a mass which is hypointense on T1-weighted MRI and hyperintense on T2-weighted MRI.<ref name="AminiMasoumi-Moghaddam2014">{{cite journal|last1=Amini|first1=Afshin|last2=Masoumi-Moghaddam|first2=Samar|last3=Ehteda|first3=Anahid|last4=Morris|first4=David|title=Secreted mucins in pseudomyxoma peritonei: pathophysiological significance and potential therapeutic prospects|journal=Orphanet Journal of Rare Diseases|volume=9|issue=1|year=2014|pages=71|issn=1750-1172|doi=10.1186/1750-1172-9-71}}</ref> | Abdominal MRI is helpful in the diagnosis of pseudomyxoma peritonei. On abdominal MRI, pseudomyxoma peritonei is characterized by a mass which is hypointense on T1-weighted MRI and hyperintense on T2-weighted MRI.<ref name="AminiMasoumi-Moghaddam2014">{{cite journal|last1=Amini|first1=Afshin|last2=Masoumi-Moghaddam|first2=Samar|last3=Ehteda|first3=Anahid|last4=Morris|first4=David|title=Secreted mucins in pseudomyxoma peritonei: pathophysiological significance and potential therapeutic prospects|journal=Orphanet Journal of Rare Diseases|volume=9|issue=1|year=2014|pages=71|issn=1750-1172|doi=10.1186/1750-1172-9-71}}</ref> | ||
==MRI== | ==MRI== | ||
Helical CT is currently the best imaging technique in patients with pseudomyxoma peritonei. However, the limited contrast range of CT makes it difficult to distinguish mucin, ascites, and solid peritoneal tumor, MRI | Helical CT is currently the best imaging technique in patients with pseudomyxoma peritonei. However, the limited contrast range of CT makes it difficult to distinguish mucin, ascites, and solid peritoneal tumor, MRI has better sensitivity whether the mucocele is mucin or ascitic fluid. MRI findings in pseudomyxoma patients may include:<ref name="pmid12096860">{{cite journal |vauthors=Sulkin TV, O'Neill H, Amin AI, Moran B |title=CT in pseudomyxoma peritonei: a review of 17 cases |journal=Clin Radiol |volume=57 |issue=7 |pages=608–13 |date=July 2002 |pmid=12096860 |doi= |url=}}</ref> | ||
*Scalloping margins of liver and spleen visceral layers, mesentery, and peritoneum thickening | *Scalloping margins of liver and spleen visceral layers, mesentery, and peritoneum thickening | ||
*Small bowl displacement | *Small bowl displacement | ||
Revision as of 21:09, 11 January 2019
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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]
Overview
Abdominal MRI is helpful in the diagnosis of pseudomyxoma peritonei. On abdominal MRI, pseudomyxoma peritonei is characterized by a mass which is hypointense on T1-weighted MRI and hyperintense on T2-weighted MRI.[1]
MRI
Helical CT is currently the best imaging technique in patients with pseudomyxoma peritonei. However, the limited contrast range of CT makes it difficult to distinguish mucin, ascites, and solid peritoneal tumor, MRI has better sensitivity whether the mucocele is mucin or ascitic fluid. MRI findings in pseudomyxoma patients may include:[2]
- Scalloping margins of liver and spleen visceral layers, mesentery, and peritoneum thickening
- Small bowl displacement
References
- ↑ Amini, Afshin; Masoumi-Moghaddam, Samar; Ehteda, Anahid; Morris, David (2014). "Secreted mucins in pseudomyxoma peritonei: pathophysiological significance and potential therapeutic prospects". Orphanet Journal of Rare Diseases. 9 (1): 71. doi:10.1186/1750-1172-9-71. ISSN 1750-1172.
- ↑ Sulkin TV, O'Neill H, Amin AI, Moran B (July 2002). "CT in pseudomyxoma peritonei: a review of 17 cases". Clin Radiol. 57 (7): 608–13. PMID 12096860.