title: Cellular mesoblastic nephroma with liver metastasis in a neonate: prenatal and postnatal diffusion-weighted MR imaging.
abstract: 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.
authors.affiliation: Department of Radiology and Research Institute of Radiological Science, Severance Children's Hospital, Yonsei University College of Medicine, Seoul 120-752, Korea.
authors.forename: Seok-min
authors.initials: SM
authors.lastname: Ko
authors.forename: Myung-Joon
authors.initials: MJ
authors.lastname: Kim
authors.forename: Young-Jae
authors.initials: YJ
authors.lastname: Im
authors.forename: Kook-In
authors.initials: KI
authors.lastname: Park
authors.forename: Mi-Jung
authors.initials: MJ
authors.lastname: Lee
mesh_terms: D000328:Adult; D003131:Combined Modality Therapy; D038524:Diffusion Magnetic Resonance Imaging / Q000379:methods*; D005260:Female; D006801:Humans; D007231:Infant, Newborn; D007680:Kidney Neoplasms / Q000151:congenital* / Q000628:therapy; D008113:Liver Neoplasms / Q000556:secondary* / Q000628:therapy; D018201:Nephroma, Mesoblastic / Q000151:congenital* / Q000628:therapy; D011247:Pregnancy
keywords: Congenital mesoblastic nephroma; Diffusion-weighted imaging; MRI