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KMID : 1103720100630050463
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Journal of the Korean Society of Radiology
2010 Volume.63 No. 5 p.463 ~ p.469
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Islet Cell Tumors of the Pancreas: A Variety of Multiphase Dynamic Imaging Findings with Pathologic Correlations Focusing on Nonfunctioning Tumors and Insulinomas
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Hong Yoo-Jin
Yu Jeong-Sik
Park Chan-Il
Kwon Ji-Eun
Chung Jae-Joon
Kim Joo-Hee
Kim Ki-Whang
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Abstract
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Islet cell tumors (ICTs) are rare pancreatic neoplasms of neuroendocrine origin, posing a diagnostic challenge to radiologists. We illustrated a spectrum of features of pancreatic ICTs that could be found on multiphase dynamic CT or MRI, and elucidated the histopathologic characteristics by determining the contrast enhancement pattern of the lesions. Various enhancement patterns were dependant on the internal composition of the tumor, that is, the proportion of vascular densities for early enhancement and non-hypervascular interstitial tissue for late enhancement regardless of the size or functional behavior. This knowledge of the imaging-pathologic spectrum of ICTs could be helpful for the proper differential diagnosis from other pancreatic tumors.
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KEYWORD
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Pancreatic Neoplasms, Tomography, X-ray Computed, Islet Cell Tumor
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