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Multi-detector row CT of pancreatic islet cell tumors Horton KM; Hruban RH; Yeo C; Fishman EKRadiographics 2006[Mar]; 26 (2): 453-64Pancreatic islet cell tumors (ICTs) are neuroendocrine neoplasms that produce and secrete hormones to a variable degree. These neoplasms can present a diagnostic challenge, both clinically and radiologically. ICTs can be classified as either syndromic or nonsyndromic on the basis of their clinical manifestations. Multi-detector row computed tomography (CT) plays an important role in the diagnosis and staging of both syndromic and nonsyndromic ICTs. In general, syndromic ICTs are less than 3 cm in size. They are typically hyperenhancing and are usually best seen on CT scans obtained during the arterial phase. Nonsyndromic ICTs tend to be larger than syndromic ICTs at presentation and are more likely to be cystic or necrotic. It is important for the radiologist to be familiar with appropriate CT protocol for the evaluation of patients with suspected pancreatic ICT and to understand the variable CT appearances of these neoplasms.|Diagnosis, Differential[MESH]|Humans[MESH]|Image Enhancement/*instrumentation/*methods[MESH]|Islets of Langerhans/*diagnostic imaging[MESH]|Neuroendocrine Tumors/*diagnostic imaging[MESH]|Pancreatic Neoplasms/*diagnostic imaging[MESH]|Practice Guidelines as Topic[MESH]|Practice Patterns, Physicians'[MESH]|Tomography, X-Ray Computed/*instrumentation/*methods[MESH]|Transducers[MESH] |
