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Abdom Radiol (NY). 2019 Sep 9. doi: 10.1007/s00261-019-02196-9. [Epub ahead of print]

Update on MR Imaging of cystic retroperitoneal masses.

Author information

1
Department of Medical Imaging, The Ottawa Hospital, The University of Ottawa, Ottawa, Canada.
2
Department of Radiology, The Hospital of the University of Pennsylvania, Philadelphia, USA.
3
The Ottawa Hospital, The University of Ottawa, 1053 Carling Avenue, Ottawa, ON, K1Y 4E9, Canada. nschieda@toh.on.ca.

Abstract

OBJECTIVE:

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

CONCLUSION:

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.

KEYWORDS:

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

PMID:
31501965
DOI:
10.1007/s00261-019-02196-9

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