Objective:To investigate the gray-scale ultrasound and contrast-enhanced ultrasound(CEUS)features of metanephric adenoma(MA)to improve our understanding and diagnostic accuracy.Methods:Contrast-enhanced ultrasound fin...Objective:To investigate the gray-scale ultrasound and contrast-enhanced ultrasound(CEUS)features of metanephric adenoma(MA)to improve our understanding and diagnostic accuracy.Methods:Contrast-enhanced ultrasound findings and clinical data of a patient with MA are reported.Results:The possibility of renal malignancy was considered after CEUS and computed tomography.A left renal nephron-sparing operation was performed using an endoscope,and MA was confirmed via surgical pathology.Conclusion:Preoperative diagnosis of MA is difficult because of atypical imaging findings.The possibility of MA should be considered when a renal mass is found,and CEUS shows a“slow-in,fast-out”enhancement pattern.展开更多
Objective To analyze the clinical manifestations and the imaging mainly CT of metanephric adenoma in chidren. Methods We reviewed the manifestations of clinics and the imaging mainly CT at our institution and reported...Objective To analyze the clinical manifestations and the imaging mainly CT of metanephric adenoma in chidren. Methods We reviewed the manifestations of clinics and the imaging mainly CT at our institution and reported observations on the diagnosis of metanephric adenoma in children based on these 2 patients and an additional 10 cases from the literature. Results More cases of metanephric adenoma could have polycythemia at presentation. Also in more patiens, US image depicted well-circumscribed hyperechoic mass. Un-enhanced CT scan showed the higher attenuation mass with calcification, some cases had cystic mass with a single solid mural nodule. At contrast-enhanced CT, the degrees of enhancement varied. In our new cases, one showed a large polycystic mass abounded with fat-attenuation material. Conclusion Manifestations of metanephric adenoma varied from each other, we should analyze the clinical manifestations as well as the characteristics of imagings and it would help for diagnosis. But the diagnosis of the tumors must be based on histological examinations.展开更多
Rhabdoid tumor of kidney （RTK） is a highly malignant tumor that occurs in infants and children, and approximately 80% of patients are diagnosed in the first two years of life. It was firstly described in 1978, and w...Rhabdoid tumor of kidney （RTK） is a highly malignant tumor that occurs in infants and children, and approximately 80% of patients are diagnosed in the first two years of life. It was firstly described in 1978, and was defined as an independent disease in 1981. In the reported literatures, there were less in adolescents and extremely rare in adults.展开更多
文摘Objective:To investigate the gray-scale ultrasound and contrast-enhanced ultrasound(CEUS)features of metanephric adenoma(MA)to improve our understanding and diagnostic accuracy.Methods:Contrast-enhanced ultrasound findings and clinical data of a patient with MA are reported.Results:The possibility of renal malignancy was considered after CEUS and computed tomography.A left renal nephron-sparing operation was performed using an endoscope,and MA was confirmed via surgical pathology.Conclusion:Preoperative diagnosis of MA is difficult because of atypical imaging findings.The possibility of MA should be considered when a renal mass is found,and CEUS shows a“slow-in,fast-out”enhancement pattern.
文摘Objective To analyze the clinical manifestations and the imaging mainly CT of metanephric adenoma in chidren. Methods We reviewed the manifestations of clinics and the imaging mainly CT at our institution and reported observations on the diagnosis of metanephric adenoma in children based on these 2 patients and an additional 10 cases from the literature. Results More cases of metanephric adenoma could have polycythemia at presentation. Also in more patiens, US image depicted well-circumscribed hyperechoic mass. Un-enhanced CT scan showed the higher attenuation mass with calcification, some cases had cystic mass with a single solid mural nodule. At contrast-enhanced CT, the degrees of enhancement varied. In our new cases, one showed a large polycystic mass abounded with fat-attenuation material. Conclusion Manifestations of metanephric adenoma varied from each other, we should analyze the clinical manifestations as well as the characteristics of imagings and it would help for diagnosis. But the diagnosis of the tumors must be based on histological examinations.
文摘Rhabdoid tumor of kidney （RTK） is a highly malignant tumor that occurs in infants and children, and approximately 80% of patients are diagnosed in the first two years of life. It was firstly described in 1978, and was defined as an independent disease in 1981. In the reported literatures, there were less in adolescents and extremely rare in adults.
