caa a22 4500 605493839 CHVBK 20210128100523.0 cr unu---uuuuu 210128e20151001xx s 000 0 eng 10.1007/s00261-015-0463-3 doi (NATIONALLICENCE)springer-10.1007/s00261-015-0463-3 Imaging of tailgut cysts [Elektronische Daten] [Anup Shetty, Ronald Loch, Naomi Yoo, Vincent Mellnick, Kathryn Fowler, Vamsi Narra] Tailgut cysts are congenital lesions that arise from the primitive hindgut in the true embryonic tail but fail to regress during gestation. These lesions are rare and more frequently encountered later in life and more commonly in women, and are the most common primary retrorectal tumor. Tailgut cysts may be asymptomatic or cause rectal bleeding, pain, or symptoms related to mass effect on the rectum or bladder. Pathologically, tailgut cysts are typically multilocular, lined with a variety of epithelial cell types, and are most frequently benign. Imaging is the linchpin of diagnosis due risks associated with biopsy. The purpose of this pictorial review is to present the spectrum of imaging findings associated with tailgut cysts on CT and MRI with focus on the use of advanced MRI and diffusion-weighted imaging. We present case examples of tailgut cysts, their CT and MR imaging findings, and diagnostic and management considerations. Springer Science+Business Media New York, 2015 Tailgut cyst nationallicence Retrorectal cystic hamartoma nationallicence Magnetic resonance imaging nationallicence Computed tomography nationallicence Diffusion-weighted imaging nationallicence Shetty Anup Mallinckrodt Institute of Radiology, Washington University School of Medicine, 510 South Kingshighway Boulevard, Campus Box 8131, 63110, Saint Louis, MO, USA aut Loch Ronald Mallinckrodt Institute of Radiology, Washington University School of Medicine, 510 South Kingshighway Boulevard, Campus Box 8131, 63110, Saint Louis, MO, USA aut Yoo Naomi Department of Pathology and Immunology, Washington University School of Medicine, Saint Louis, MO, USA aut Mellnick Vincent Mallinckrodt Institute of Radiology, Washington University School of Medicine, 510 South Kingshighway Boulevard, Campus Box 8131, 63110, Saint Louis, MO, USA aut Fowler Kathryn Mallinckrodt Institute of Radiology, Washington University School of Medicine, 510 South Kingshighway Boulevard, Campus Box 8131, 63110, Saint Louis, MO, USA aut Narra Vamsi Mallinckrodt Institute of Radiology, Washington University School of Medicine, 510 South Kingshighway Boulevard, Campus Box 8131, 63110, Saint Louis, MO, USA aut Abdominal Imaging Springer US; http://www.springer-ny.com 40/7(2015-10-01), 2783-2795 0942-8925 40:7<2783 2015 40 261 https://doi.org/10.1007/s00261-015-0463-3 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/s00261-015-0463-3 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Shetty Anup Mallinckrodt Institute of Radiology, Washington University School of Medicine, 510 South Kingshighway Boulevard, Campus Box 8131, 63110, Saint Louis, MO, USA aut NATIONALLICENCE 700 1- Loch Ronald Mallinckrodt Institute of Radiology, Washington University School of Medicine, 510 South Kingshighway Boulevard, Campus Box 8131, 63110, Saint Louis, MO, USA aut NATIONALLICENCE 700 1- Yoo Naomi Department of Pathology and Immunology, Washington University School of Medicine, Saint Louis, MO, USA aut NATIONALLICENCE 700 1- Mellnick Vincent Mallinckrodt Institute of Radiology, Washington University School of Medicine, 510 South Kingshighway Boulevard, Campus Box 8131, 63110, Saint Louis, MO, USA aut NATIONALLICENCE 700 1- Fowler Kathryn Mallinckrodt Institute of Radiology, Washington University School of Medicine, 510 South Kingshighway Boulevard, Campus Box 8131, 63110, Saint Louis, MO, USA aut NATIONALLICENCE 700 1- Narra Vamsi Mallinckrodt Institute of Radiology, Washington University School of Medicine, 510 South Kingshighway Boulevard, Campus Box 8131, 63110, Saint Louis, MO, USA aut NATIONALLICENCE 773 0- Abdominal Imaging Springer US; http://www.springer-ny.com 40/7(2015-10-01), 2783-2795 0942-8925 40:7<2783 2015 40 261