Sang Won Kim MD, Presenter: Nothing to Disclose

Hyun Cheol Kim, Abstract Co-Author: Nothing to Disclose

Dal Mo Yang, Abstract Co-Author: Nothing to Disclose

Kyung Jin Lee MD, Abstract Co-Author: Nothing to Disclose

1. To review complications that are associated with GISTs 2. To illustrate various cases of GISTs that were misdiagnosed on initial CT and present with unusual imaging findings 3. To discuss the diagnostic clues that allow making a diagnosis of GIST on CT  

A. Typical imaging findings of GISTs B. Complications of GIST   1. Rupture of GIST     1) presenting as hemoperitoneum     2) presenting as pneumoperitoneum and panperitonitis   2. Intestinal bleeding   3. Intussusception & bowel obstruction C. GISTs misdiagnosed as   1. advanced gastric cancer   2. duodenal cancer   3. hepatic tumor   4. pancreatic tumor   5. uterine or ovarian tumor   6. prostate tumor   7. postoperative traumatic neuroma D. Uncommon presentations of GISTs   1. Large GIST presenting without necrosis   2. GIST with cystic necrosis   3. Pedunculated GIST   4 GIST with lymph nodes metastases   5. GISTs in patients with neurofibromatosis E. Clues to make a correct diagnosis of GIST   : embedded organ sign, beak sign, feeding vessel sign   : value of adding MR exam  

http://abstract2.rsna.org/uploads/2014/14016144/14016144_qscg.pdf

Kim, S, Kim, H, Yang, D, Lee, K, Gastrointestinal Stromal Tumor (GIST) with a Thousand Faces: Uncommon Manifestations and Causes of Misdiagnosis on CT  .  Radiological Society of North America 2014 Scientific Assembly and Annual Meeting, - ,Chicago IL. http://archive.rsna.org/2014/14016144.html