Gastrointestinal Stromal Tumors of the Duodenum: CT and Barium Study Findings
Hyo-Cheol Kim1,
Jeong Min Lee1,
Kyu Ri Son1,
Se Hyung Kim1,
Kyoung Ho Lee1,
Kyoung Won Kim2,
Minjin Lee3,
Joon Koo Han1 and
Byung Ihn Choi1
1 Department of Radiology, Seoul National University College of Medicine,
Institute of Radiation Medicine, Seoul National University Medical Research
Center, and Clinical Research Institute, Seoul National University Hospital,
28 Yongon-dong, Chongno-gu, Seoul 110-744, Korea.
2 Department of Radiology, Asan Medical Center, University of Ulsan College of
Medicine, Seoul, Korea.
3 Department of Pathology, Seoul National University College of Medicine, Seoul
National University Hospital, Seoul, Korea.

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Fig. 1A. 55-year-old woman with gastrointestinal stromal tumor of
duodenum with low malignant potential. Barium study shows well-circumscribed
mass (arrows) in first portion of duodenum.
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Fig. 1B. 55-year-old woman with gastrointestinal stromal tumor of
duodenum with low malignant potential. Contrast-enhanced CT scan shows
well-defined mass (arrow) with peripheral high-attenuating rim and
central areas of low attenuation between gallbladder and pancreas.
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Fig. 2A. 45-year-old man with malignant gastrointestinal stromal tumor
of duodenum. Barium study shows extrinsic compression on third portion of
duodenum and focal collection of barium (arrow) in cavity.
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Fig. 2B. 45-year-old man with malignant gastrointestinal stromal tumor
of duodenum. Contrast-enhanced CT scan shows cavitary mass lesion
(arrows) with airfluid level.
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Fig. 3. 27-year-old woman with malignant gastrointestinal stromal
tumor of duodenum. Contrast-enhanced CT scan shows well-enhancing round
homogeneous mass (arrow) with intact overlying mucosa
(arrowhead).
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Fig. 4. 68-year-old woman with malignant gastrointestinal stromal
tumor of duodenum. Contrast-enhanced CT scan shows lobulated mass lesion
encasing right renal vessels (straight arrow) and inferior vena cava
(curved arrow). Note stomach is dilated as result of duodenal
obstruction.
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Fig. 5A. 58-year-old man with gastrointestinal stromal tumor of
duodenum with multiple liver metastases. Contrast-enhanced CT scan shows
well-defined heterogeneous mass lesion (arrow) abutting duodenal
wall.
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Fig. 5B. 58-year-old man with gastrointestinal stromal tumor of
duodenum with multiple liver metastases. Contrast-enhanced CT scan obtained
during arterial phase shows multiple small high-attenuating lesions
(arrows) in liver.
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Fig. 5C. 58-year-old man with gastrointestinal stromal tumor of
duodenum with multiple liver metastases. Contrast-enhanced CT scan obtained
during portal venous phase shows no focal lesion in liver.
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Copyright © 2004 by the American Roentgen Ray Society.