Illustrate the primary role of imaging in the evaluation of response in solid tumors Provide an educational toll to make it easier to use these criteria by clinicians in the evaluation and guidance of cancer treatments

RECIST = Response Evaluation Criteria In Solid Tumors It's a Tumor response evaluation system for solid cancers RECIST doesnt work for: žlymphoma, žGlioblastoma and leukemia Why do we need an evaluation system ? žAn international standard for an objective evaluation of tumor response ž To reduce interobserver variability ž To provide a robust referencial for classifying the therapeutic response ž To improve the comparison between different studies ž To better evaluate tumor response after chemotherapy ž To allow better care support for cancer patients That’s...

CASE N1 45 years old male, followed for poorly differentiated neuroendocrine carcinoma of the pancreas with liver metastasis, diagnosed in December 2016 Fig. 8 Fig. 9 We defined 3 target lesions (pancreas tail + 2 liver metastasis) Initial RECIST(SLD) was : SLD:44+57+37=138 mm resultsAfter 3 chemotherapy sessions shown in the CT of March 2017 Fig. 10 table showing the evolutionin the longest diamteres of the target lesions: target lesions december 2016 March 2017 seg 2 MTS 44 mm 49 mm seg 7 MTS 57 mm...

RECIST žTumor response evaluation systemž Sometimes difficult to use, indeed žHelps imporve the quality of routine examsž A powerful Productivity and communication tool žCase-by-case discussion is often necessary in multidisciplinary staff to resolve challenging cases

Eisenhauer EA,Therasse P,Bogaerts J,Schwartz LH,Sargent D,Ford Rand al .New response evaluation criteria in solid tumours: revised RECIST guideline (version1.1).EurJCancer.2009Jan;45(2):228-47.doi:10.1016/j.ejca.2008.10.026.