caa a22 4500 605493480 CHVBK 20210128100521.0 cr unu---uuuuu 210128e20151001xx s 000 0 eng 10.1007/s00261-015-0404-1 doi (NATIONALLICENCE)springer-10.1007/s00261-015-0404-1 MR imaging of the retrorectal-presacral tumors: an algorithmic approach [Elektronische Daten] [Hooman Hosseini-Nik, Keyanoosh Hosseinzadeh, Rajesh Bhayana, Kartik Jhaveri] The retrorectal-presacral space is located posterior to the mesorectum and anterior to the sacrum, and can harbor a heterogeneous group of uncommon masses. Retrorectal-presacral tumors may be classified as congenital, neurogenic, osseous, and miscellaneous. Magnetic resonance imaging (MRI) plays a crucial role in directing appropriate management through accurate diagnosis, detection of complications and anatomic extent. MRI aids in the selection of optimal surgical approach such as anterior, posterior, or combined—based on the lesion extent and relationship to adjacent structures. This article reviews the anatomy of the retrorectal-presacral space and the related tumors, optimal MRI protocol, MRI-based approach to differential diagnosis, and finally pertinent reporting pointers and implications of MR imaging findings for surgical management. Springer Science+Business Media New York, 2015 Retrorectal space nationallicence Presacral space nationallicence Magnetic resonance imaging nationallicence Malignant tumor nationallicence Benign tumor nationallicence Neoplasm nationallicence Hosseini-Nik Hooman Joint Department of Medical Imaging (JDMI), University Health Network, Toronto, ON, Canada aut Hosseinzadeh Keyanoosh Department of Radiology, Wake Forest University School of Medicine, One Medical Center Boulevard, 27157, Winston-Salem, NC, USA aut Bhayana Rajesh Department of Medical Imaging, University of Toronto, Toronto, ON, Canada aut Jhaveri Kartik Joint Department of Medical Imaging (JDMI), University Health Network, Toronto, ON, Canada aut Abdominal Imaging Springer US; http://www.springer-ny.com 40/7(2015-10-01), 2630-2644 0942-8925 40:7<2630 2015 40 261 https://doi.org/10.1007/s00261-015-0404-1 text/html Onlinezugriff via DOI BK010053 XK010053 XK010000 Metadata rights reserved Springer special CC-BY-NC licence nationallicence 1 review-article jats NATIONALLICENCE NATIONALLICENCE NL-springer NATIONALLICENCE 856 40 https://doi.org/10.1007/s00261-015-0404-1 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Hosseini-Nik Hooman Joint Department of Medical Imaging (JDMI), University Health Network, Toronto, ON, Canada aut NATIONALLICENCE 700 1- Hosseinzadeh Keyanoosh Department of Radiology, Wake Forest University School of Medicine, One Medical Center Boulevard, 27157, Winston-Salem, NC, USA aut NATIONALLICENCE 700 1- Bhayana Rajesh Department of Medical Imaging, University of Toronto, Toronto, ON, Canada aut NATIONALLICENCE 700 1- Jhaveri Kartik Joint Department of Medical Imaging (JDMI), University Health Network, Toronto, ON, Canada aut NATIONALLICENCE 773 0- Abdominal Imaging Springer US; http://www.springer-ny.com 40/7(2015-10-01), 2630-2644 0942-8925 40:7<2630 2015 40 261