Sarah Kyung Oh MD, Presenter: Nothing to Disclose

Zina Joan Ricci MD, Abstract Co-Author: Nothing to Disclose

Jeffrey Harmon Roberts MD, Abstract Co-Author: Nothing to Disclose

Victoria Chernyak MD, Abstract Co-Author: Nothing to Disclose

Alla M. Rozenblit MD, Abstract Co-Author: Nothing to Disclose

Fernanda Samara Mazzariol MD, Abstract Co-Author: Nothing to Disclose

Milana Flusberg MD, Abstract Co-Author: Nothing to Disclose

Marjorie Werner Stein MD, Abstract Co-Author: Nothing to Disclose

Ellen Leslie Wolf MD, Abstract Co-Author: Nothing to Disclose

Teaching points: Review multimodality (CT, Ultrasound, and MRI) imaging of malignant disease in the abdomen which simulates benign conditions, raising awareness of overlapping features and highlighting key imaging pearls for correct diagnosis. 1. Malignant disease can simulate benign conditions. 2. Superimposed infectious or inflammatory process may obscure the primary pathology. 3. Behavior on follow up exam can be helpful in distinguishing malignant disease from benign conditions.

A. Discuss differences between imaging modalities in the evaluation of tumor within the abdomen. B. Present cases where malignant disease simulates a benign condition. C. Present cases where a superimposed infectious or inflammatory process obscures the primary pathology. D. Highlight key features that may aid in correct diagnosis. E. Review imaging surveillance recommendations. Cases include but are not limited to the following: - Mucinous hepatic metastases as biliary hamartomas - HCC as FNH - Scirrhous colon carcinoma as diffuse colitis with toxic megacolon - Mucinous appendiceal neoplasm as acute appendicitis - TCC as normal renal sinus fat - Seminoma as orchitis - Psammomatous ovarian calcification as fibroids - Krukenberg tumors as tubo-ovarian abscesses - Buttock carcinoma as sacral decubitus ulcer

http://abstract.rsna.org/uploads/2014/14014287/14014287_78f7.pdf

Oh, S, Ricci, Z, Roberts, J, Chernyak, V, Rozenblit, A, Mazzariol, F, Flusberg, M, Stein, M, Wolf, E, A Wolf in Sheep’s Clothing: Tumor in the Abdomen Mimicking Benign Conditions.  Radiological Society of North America 2014 Scientific Assembly and Annual Meeting, - ,Chicago IL. http://archive.rsna.org/2014/14014287.html