Luis Curvo-Semedo MD, PhD, Presenter: Nothing to Disclose

Daniel Andrade MD, Abstract Co-Author: Nothing to Disclose

Jorge Brito MD, Abstract Co-Author: Nothing to Disclose

Filipe Caseiro-Alves, Abstract Co-Author: Nothing to Disclose

The main purposes of this work are: - To recognize uncommon imaging findings of tumor and tumor-like conditions of the rectum as seen on cross-sectional imaging studies, with emphasis on MRI (including DWI). These include both primary staging and restaging examinations. - To review the clinical and imaging features of some rare neoplasms and neoplasm-like lesions occuring in the rectum.

1. Uncommon imaging findings of adenocarcinoma of the rectum - synchronous tumors - intussusceptions - invasion / fistulization to other organs - rare findings on restaging examinations after neoadjuvant chemoradiation therapy 2. Rare rectal tumors and tumor-like lesions - mucinous carcinoma - gastrointestinal stromal tumors - endocrine tumors - malignant melanoma - lymphoma - metastases - villous tumors - endometriosis - invasion from other neoplasms such as squamous cell carcinoma of the anal canal - other  

http://abstract.rsna.org/uploads/2014/14015421/14015421_iojy.pdf

Curvo-Semedo, L, Andrade, D, Brito, J, Caseiro-Alves, F, Tumor and Tumor-like Lesions of the Rectum: Uncommon Imaging Findings and Rare Pathological Entities.  Radiological Society of North America 2014 Scientific Assembly and Annual Meeting, - ,Chicago IL. http://archive.rsna.org/2014/14015421.html