GASTROINTESTINAL IMAGINGG iven the extensive use of medical cross-sectional imaging, the incidental detection of adrenal lesions has concomitantly increased, occurring in approximately 5%-8% of patients undergoing CT (1-5). Although most incidental adrenal lesions are benign adenomas, the most common clinical dilemma has been the differentiation between adenomas and metastases, particularly among patients with a history of extra-adrenal malignancy (1-3). Because the presence of metastasis can affect treatment strategies and patient prognosis, accurate and noninvasive discrimination between the two entities is critical.Adrenal adenomas have two key CT imaging features: (a) low unenhanced attenuation reflecting intracytoplasmic fat content and (b) maximized contrast enhancement during the portal venous phase followed by rapid washout during the delayed phase (5)(6)(7)(8)(9)(10)(11)(12). Approximately 70% of adenomas can be diagnosed as lipid-rich adenoma based on unenhanced attenuation (10 HU) (5-8), whereas most lipid-poor adenomas (.10 HU) can be diagnosed based on the high washout rate calculated at multiphasic adrenal CT (7-12

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• MRCP acquisition time was 95% shorter with GRASE than with 3D TSE. • Overall image quality of GRASE was significantly better than 3D TSE. • Pancreaticobiliary tree visibility with GRASE was better than that with 3D TSE.

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