Pseudomyxoma peritonei MRI
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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. MRI has better sensitivity in detecting ascitic fluid and mucocele.
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:[1][2]
- Scalloping margins of liver and spleen visceral layers, mesentery, and peritoneum thickening
- Small bowl displacement
References
- ↑ 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.
- ↑ Szklaruk, Janio; Tamm, Eric P.; Choi, Haesun; Varavithya, Vithya (2003). "MR Imaging of Common and Uncommon Large Pelvic Masses". RadioGraphics. 23 (2): 403–424. doi:10.1148/rg.232025089. ISSN 0271-5333.