Imaging finding in GIST
Reference-Gastrointestinal stromal tumors: CT and MRI findings. in Eur Radiol 2005 Jul;15(7):1407-14. Epub 2005 Mar 11 By Sandrasegaran K
"Primary tumors were typically exophytic, larger than 5 cm, and inhomogeneously enhancing.Central necrosis of all tumors and aneurysmal dilation of enteric tumors (33%) were less common. Metastases were most commonly to mesentery or liver. Less common findings were ascites and omental caking . Liver metastases were hypervascular in 92% of patients and rapidly became cystic following therapy with imatinib mesylate. Lung metastases, bowel obstruction, vascular invasion, and significant lymphadenopathy were not seen in any patient. GISTs have some specific CT findings which could help differentiate them from other gastrointestinal tumors. Liver metastases became cystic following therapy, mimicking simple cysts. MRI was better than single-phase CT for assessing liver metastases, while CT was more sensitive for mesenteric metastases."
"Primary tumors were typically exophytic, larger than 5 cm, and inhomogeneously enhancing.Central necrosis of all tumors and aneurysmal dilation of enteric tumors (33%) were less common. Metastases were most commonly to mesentery or liver. Less common findings were ascites and omental caking . Liver metastases were hypervascular in 92% of patients and rapidly became cystic following therapy with imatinib mesylate. Lung metastases, bowel obstruction, vascular invasion, and significant lymphadenopathy were not seen in any patient. GISTs have some specific CT findings which could help differentiate them from other gastrointestinal tumors. Liver metastases became cystic following therapy, mimicking simple cysts. MRI was better than single-phase CT for assessing liver metastases, while CT was more sensitive for mesenteric metastases."
Imaging finding in GIST
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Reviewed by Sumer Sethi
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Tuesday, September 05, 2006
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Sumer Sethi
Unique blend of academic excellence and entrepreneurship, heading leading firms in India- Teleradiology Providers, pioneering company providing teleradiology services and DAMS (Delhi Academy of Medical Sciences) Premier test preparation institute in India for MD/MS/MCI preparation. He has also been an invited faculty member at various conferences, including Teleradiology in IRIA 2008 and 2011, Hospital Build Middle East, Congress of the Brain Tumor Radiology in Neuro-oncology Society. Dr. Sethi is Editor-in-Chief of Internet Journal of Radiology. He has a keen interest in Web 2.0 technologies and in maintaining his famous radiology blog, which has been featured in multiple international journals.
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