Rammohan Vadapalli MD, Presenter: Nothing to Disclose

Abhijit Roychowdhury MD, Abstract Co-Author: Nothing to Disclose

Harshavardhan KR MD, Abstract Co-Author: Nothing to Disclose

Abhinav Sriram Sriram Vadapalli, Abstract Co-Author: Nothing to Disclose

Pramod Kumar Reddy Kaila MD, Abstract Co-Author: Nothing to Disclose

To high light the cardinal Imaging features of Gastro intestinal Stromal tumours with Pattern recognition approach on CT,MRI and PET-CT with Radio Pathological correlation. Familiarize the viewer with Spectrum of atypical Manifestations of GIST with Illustrative examples Pathophysiology and Concepts of GIST at a Glance Magnetic resonance imaging (MRI) Imaging Avatars of GISTs: The masses tend to be isointense relative to skeletal muscle on T1-weighted images and hyper intense on T2-weighted images./Signal-intensity voids if gas in the tumour MR findings vary, owing to the degree of necrosis and haemorrhage . The solid components of the tumour show  Hetrogeneous enhancement  Post contrast T1 images.  

-Cardinal CT and MRI findings of GIST are described with clinical Examples with a emphasis on Pattern Recognition-Endo luminal, Exophytic / ExoEnteric with homogenous CT attenuation -Atypical Features like large size, Heterogeneity, Enhancing borders, Multiloculated cystic Pattern Calcifications, necrosis, bubble -lucencies, matrix air, Fluid Fluid levels Adjacent visceral Invasion are Illustrated with a brief discussion on Differential Diagnosis -GISTs with Hepatic ,peritoneal and Bone metastases are highlighted to familairize the viewer with the malignant Variant. -  

http://abstract.rsna.org/uploads/2014/14009719/14009719_7xwq.pdf

Vadapalli, R, Roychowdhury, A, KR, H, Vadapalli, A, Kaila, P, Gastro Intestinal Stromal Tumours Reexplored—Many Orthodox and Unorthodox Avatars: A Pictorial Essay.  Radiological Society of North America 2014 Scientific Assembly and Annual Meeting, - ,Chicago IL. http://archive.rsna.org/2014/14009719.html