Department of Radiology and Research Institute of Radiological Science, Severance Children's Hospital, Yonsei University College of Medicine, Seoul 120-752, Korea.
Korean J Radiol. 2013 Mar-Apr;14(2):361-5. doi: 10.3348/kjr.2013.14.2.361. Epub 2013 Feb 22.
Congenital mesoblastic nephroma (CMN) is the most common renal tumor in the first year of life. Here, we present unique findings of cellular variant CMN seen on prenatal and postnatal MRI with diffusion-weighted imaging (DWI).The mass was well-visualized on prenatal MR DWI with diffusion restriction in the solid portions. After excision of the mass, follow-up whole body MRI with DWI helped identify local tumor recurrence with suspicious liver metastasis. This hepatic lesion also showed diffusion restriction.
先天性中胚层肾瘤（CMN）是生命第一年最常见的肾脏肿瘤。在此，我们展示了产前和产后磁共振成像（MRI）与弥散加权成像（DWI）所见的细胞变异型 CMN 的独特表现。肿块在产前 MR DWI 上显示良好，实性部分弥散受限。肿块切除后，行全身 MRI 随访加 DWI 有助于发现局部肿瘤复发和可疑肝转移。该肝病变也显示弥散受限。
