Update on MR Imaging of cystic retroperitoneal masses



This article reviews the MRI appearance of cystic retroperitoneal (RP) masses.


Lymphangiomas are the most common RP cystic masses and typically appear simple; microscopic fat is a specific but insensitive finding. Location, internal complexity, and enhancement pattern suggest alternative diagnoses which range from normal anatomic variants to congenital abnormalities and importantly include benign, neurogenic, and malignant neoplasms. An approach to the MR imaging of cystic RP masses is presented.

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Nguyen, K., Siegelman, E.S., Tu, W. et al. Update on MR Imaging of cystic retroperitoneal masses. Abdom Radiol 45, 3172–3183 (2020). https://doi.org/10.1007/s00261-019-02196-9

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  • Retroperitoneal
  • Cyst
  • Lymphangioma
  • Neurogenic
  • Magnetic Resonance Imaging MRI