Management of branch duct-type intraductal papillary mucinous tumor of the pancreas based on magnetic resonance imaging

Abstract

MRI was useful to identify nonmalignant IPMTs of the branch duct type, and close follow-up observation with serial MRI examinations may be appropriate in the management of such patients.

Utility of Multidetector Row CT in Diagnosing Branch Duct IPMNs of the Pancreas Compared with MR Cholangiopancreatography and Endoscopic Ultrasonography

“…MRCP is currently being investigated as the preferred imaging modality for diagnosis and follow-up of branch duct IPMNs of the pancreas [4,5]. CT remains the most commonly used imaging method, as well as the initial method of choice for evaluating patients with pancreatic disease.…”

Dynamic computed tomography findings of malignant intraductal papillary mucinous tumor compared with invasive ductal adenocarcinoma

“…Many reports have described the imaging fi ndings to determine the likelihood of malignancy, and one of the acceptable predictive signs for malignancy is the presence of mural nodules 3,9,11 (papillary projection with a diameter of ≥3 mm 6,10,12 or ≥5 mm 13 ) within the tumor. Other signs for malignancy are dilation of the main pancreatic duct (<5 mm, 9 ≥7 mm, 6 or 12 mm 12 ), entire lesion size ≥30 mm 6,11-13 , and so on.…”

“…However, malignant IPMT is often resectable and has a more favorable prognosis than IDAC. 6-10 Some investigators have reported that a good prognosis is limited until the lesions are noninvasive carcinoma 4,9,10,12,14,15 or invasive stage I IPMT. 16 Conlon reported that the 5-year survival rate of IPMT patients was 83%-100% for noninvasive carcinoma cases and 44%-65% for invasive car-A B D C Fig.…”

“…5 Malignant IPMT is often resectable and may have a more favorable prognosis than IDAC. [6][7][8][9][10] Therefore, it is necessary to review the radiological fi ndings of IPMT to differentiate this tumor from IDAC. The purpose of this study was to evaluate the effectiveness of dynamic CT imaging in differentiating malignant IPMT with a large mural nodule from IDAC.…”

Imaging features of intraductal papillary mucinous neoplasms of the pancreas in multi-detector row computed tomography

“…Therefore, correct evaluation of IPMN is extremely important as a recent analysis has suggested that this entity is one of the few surgically curable pancreatic neoplasms [18] . Prior investigations showed MRI with MRCP was useful for assessment of IPMN as a noninvasive approach [23,35,36] . However, its spatial resolution is not as high as that of CT.…”