Corey Tyler Jensen MD, Presenter: Nothing to Disclose

Gaiane M. Rauch MD, PhD, Abstract Co-Author: Nothing to Disclose

Y. Nancy You MD, Abstract Co-Author: Nothing to Disclose

George J. Chang MD, Abstract Co-Author: Nothing to Disclose

Haesun Choi MD, Abstract Co-Author: Consultant, Novartis AG

Randy Devereux Ernst MD, Abstract Co-Author: Nothing to Disclose

Harmeet Kaur MD, Abstract Co-Author: Nothing to Disclose

Review and further elucidate histopathophysiology, disease pathways, imaging appearances and diagnostic pitfalls related to mucinous rectal adenocarcinoma with the goal of improving oncologic outcomes.

We will present diagnostic challenges associated with mucinous rectal adenocarcinoma, highlighting essential pre- and post-treatment information provided by MRI. Although mucin can be identified by MRI with high accuracy, a similar appearance may occur related to benign fluid collections, rectal implantation cysts, fistula in ano, colitis cystica profunda and necrotic tumors. Example cases will be presented to demonstrate certain pitfalls and to provide suggestions for avoiding misdiagnoses.

Mucinous rectal adenocarcinoma tumor evaluation requires knowledge of certain disease features, imaging characteristics and assessment pitfalls to achieve improved diagnostic accuracy. Through the use of proper techniques, MRI of this tumor subset improves oncologic evaluation.

Jensen, C, Rauch, G, You, Y, Chang, G, Choi, H, Ernst, R, Kaur, H, Mucinous Adenocarcinoma of the Rectum: Disease Patterns and Pitfalls.  Radiological Society of North America 2011 Scientific Assembly and Annual Meeting, November 26 - December 2, 2011 ,Chicago IL. http://archive.rsna.org/2011/11005246.html