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Year : 2018  |  Volume : 4  |  Issue : 2  |  Page : 15-20

Ultrasound and Computed Tomography Evaluation of Paediatric Renal Neoplasms

1 Senior Resident, Dept. of Radiodiagnosis, IGIMS, Patna, India
2 Professor, Dept. of Radiodiagnosis, IGIMS, Patna, India
3 Professor, Dept. of Pathology, IGIMS, Patna, India

Correspondence Address:
Sanjay Kumar Suman
Professor and Head Dept. of Radiodiagnosis, IGIMS, Patna, Bihar
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Source of Support: None, Conflict of Interest: None

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Background: Previously, many different types of solid renal tumors were clubbed together under the heading of "Wilms Tumor". However, some of these have been proved to be distinct pathological entities in their own right which include Nephroblastomatosis, Renal cell Carcinoma, Mesoblastic nephroma, Multilocular cystic renal tumor, Clear cell sarcoma, Rhabdoid tumor etc. Aim: We aim to evaluate Ultrasound and Computed Tomography features of malignant renal neoplasms in paediatric population and correlate the same with histopathological findings to assess the diagnostic accuracy of these two imaging modalities. Material and methods: A prospective study of 30 patients was done and data was summarized under location, size, extent of involvement and imaging characteristics of renal tumours and metastases. Calculation of sensitivity, specificity, positive and negative predictive value and accuracy of the imaging modalities was done. Result: Mean age at presentation was 3.74 years with male to female ration being 1.73:1. Spectrum of features on Ultrasound and CT scan is diverse and wide-ranging with variable amounts of necrosis, calcification and vascular thrombosis. Wilms tumor was found in 24(80%) cases making it the most common renal neoplasm in children followed by cystic nephroma. One case each of mesoblastic nephroma, clear cell sarcoma, renal cell carcinoma and secondary lymphoma was seen. Internal architecture is varied and it is often difficult to differentiate these tumors from Wilms Tumor. Conclusion: A vast majority of renal tumors do not have characteristic imaging features and may sometimes remain indistinguishable from Wilms tumor on both US and CT scan.

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