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Purpose: Intraductal papillary neoplasm of the bile duct (IPN-B) is known as a premalignant lesion of invasive cholangiocarcinoma. The purpose of this study was for radiologic–pathologic correlation of morphologic features of IPN-B and to correlate the subclassifications with biological behavior in regard to the bile duct wall invasion. Materials and Methods: A pathologist classified gross morphology...
Purpose The purpose of this study is to evaluate the “mushroom cap” sign on T2-weighted MR imaging in patients with submucosal tumors in the rectosigmoid colon. Methods From January 2001 to August 2009, 12 patients with four different diseases presenting or mimicking submucosal tumors in the rectosigmoid colon underwent colonic resection. All patients with deep endometriosis (n = 6), gastrointestinal...
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