Primary hepatic neuroendocrine tumor:the radiologic features and correlation with pathology
10.3969/j.issn.1002-1671.2017.07.012
- VernacularTitle:肝脏原发性神经内分泌肿瘤影像学表现及病理对照
- Author:
Lixia WANG
;
Tao JIANG
- Keywords:
liver neoplasm;
neuroendocrine tumor;
computed tomography;
magnetic resonance imaging
- From:
Journal of Practical Radiology
2017;33(7):1029-1032
- CountryChina
- Language:Chinese
-
Abstract:
Objective To investigate CT and MRI findings of primary hepatic neuroendocrine tumor (PHNET) and the correlation with the pathology.Methods 14 patients with pathologically confirmed PHNET were analyzed retrospectively.All the patients underwent CT and 9 patients underwent MR.The CT and MRI findings were analyzed and the correlation with pathology was evaluated.Results Single lesion was found in 8 cases, and multiple nodular lesions in 5 cases, diffuse nodular lesions of the liver in 1 case.The lesions showed low density on CT images in all patients, and liquid-liquid level was visible in 1 lesion associated with internal bleeding.Contrast-enhanced CT in arterial-phase phase showed nodular or marginal ring enhancement in 13 cases, diffuse enhancement in 1 case, and in portal venous and delayed phases the enhancement of lesion subsequently decreased, compared with surrounding liver parenchyma.MRI showed hypointensity on T1WI and hyperintensity on T2WI, intralesional hemorrhage appeared as hyperintensity on T1WI and hypointensity on T2WI, and the enhancement pattern of MRI was similar to that of CT.With the increase of pathology grade,G1 presented as a single solid nodule,G2 as solid or cystic-solid nodules, and G3 as diffuse nodules or intrahepatic metastasis was found.The lesions showed hyperintensity on DWI.Conclusion CT and MRI can show characteristic appearances of PHNET and its certain histological characteristics.
