CT and MRI Imaging Findings of Malignant Rhabdoid Tumor of the Kidney in Children
Objective To investigate the CT and MR imaging features of Children Malignant rhabdoid tumor of kidney(MRTK)in children.Methods 8 cases of MRTK confirmed pathologically in Shanghai Children's Hospital from May 2008 to March 2021 were analyzed retrospectively.All 7 cases underwent plain and enhanced CT and 4 cases underwent plain and enhanced MRI.We observed and analyzed the location,shape,size,density/signal,enhancement pattem,and the metastasis of the tumor.Results 6 cases occurred in the left kidney and 2 cases in the right kidney.2 cases in MRTK were round or ellipse and 6 cases was irregular shape.Renal pelvis was invaded in 6 cases.5 cases were iso-or slightly hyper-density and 2 cases such as density on CT scans,The tumor average maximum diameter is about 8.6cm;2 cases with bleeding.The renal capsule/sub capsule effusion/hemorrhage was in 3 cases,8 cases were merged cystic necrosis.T1WI signals of 4 cases were low or equal to the renal cortex on MRI scans,T2WI signals of 3 cases were high or equal to the renal cortex and 1 case was mixed signal.2 cases with high signal on DWI and low signal on ADC.All cases were slightly enhanced.5 cases with metastasis.Conclusion MRTK have characteristic imaging findings,especially Children in the renal parenchyma mass,including the lesion with Punctate and patchy calcifications.With merge bleeding,high signal on DWI and low signal on ADC,with mild to moderate enhancement.May need to be mindful of the disease.
ChildrenTomography ComputedMagnetic Resonance imagingMalignant Rhabdoid Tumor of Kidney
NETL
NSTL
万方数据
