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Abstract
Objective
To provide a review of rare rectal tumors beyond adenocarcinoma.
Results
Rectal cancer is a common malignancy, both in the United States and abroad. In addition to adenocarcinoma, abdominal radiologists will encounter a variety of other less common rectal masses, both benign and malignant neoplasms as well as non-neoplastic mimickers. Familiarity with these conditions and their characteristic features on MRI is useful in clinical practice. In this article, a number of such conditions are discussed, with an emphasis on distinguishing features on MRI of the rectum.
Conclusion
Familiarity with the MRI features of rare rectal tumors beyond adenocarcinoma, as well as a small number of non-neoplastic mimics, is important for abdominal imagers to make diagnostic differentials and to assist in treatment planning.
Details
; Maria Clara Fernandes de Paula 2 ; Horvat, Natally 2 ; Sheedy, Shannon 3 ; Lall, Chandana 4 ; Kassam, Zahra 5 ; Pickhardt, Perry 6 ; Lalwani, Neeraj 7 ; Ganeshan, Dhakshinamoorthy 8 ; Petkovska, Iva 1 1 Department of Radiology, Memorial Sloan Kettering Cancer Center, New York, NY, USA
2 Department of Radiology, Hospital Universitário Clementino Fraga Filho, Rio de Janeiro, Brazil
3 Department of Radiology, Mayo Clinic, Rochester, MN, USA
4 Department of Radiology, University of Florida, Jacksonville, FL, USA
5 Department of Medical Imaging, University of Western Ontario, London, ON, Canada
6 Department of Radiology, University of Wisconsin, Madison, WI, USA
7 Department of Radiology, Wake Forest University and Baptist Health, Winston-Salem, NC, USA
8 Department of Radiology, University of Texas MD Anderson Cancer Center, Houston, TX, USA