Abstract

ULTRASOUND VERSUS COMPUTER TOMOGRAPHY SCAN FOR EVALUATION RENAL MASSES

Dr. Hana Abdul Ridha Ali AL.Dynori*, Dr. Farah Abdul- Khalik Zaki

ABSTRACT

Background: With introduction of cross sectional imaging, the diagnostic approach for the evaluation of renal masses has been completely changed. It has been suggested that CT should be performed in any patient in whom a renal mass is suspected as a small renal neoplasms being missed by urography and linear tomography. CT remains to be the s most important technique in the detection and diagnosis of renal masses. The current imaging techniques especially the CT make accurate preoperative staging of renal cell carcinoma. Objective: To verify the optimum imaging modality for the evaluation of the renal masses. Patients and methods: 30 patients referred to the radiological department for assessment as a cases of hematuria. Name, age and sex were recorded.US, native and contrast CT were performed for each case with postoperative follow up to record the ultimate findings. Results: From 30 patients 19 were females and 11 were males. The results of US, native and contrast CT for characterization of consistency of renal mass were 63.4%,56.7% and 60% respectively for the solid, while for the cystic were 23.3%,23.3% and 26.6% and for a complex 13.3%,20% and 13.4% respectively. Regarding the compatibility between the US and the CT scan for the assessment of renal mass size was compatible in 60% of cases and incompatible in 40% of them. while for mass surface regularity was compatible in 93.4% and incompatible in 6.6% of cases. The comparative results between the US and the CT scan for the mass position determination exhibit 96.7% confined to the kidney and 4.3% extended outside in US examination while 66.6% limited inside and 36.6% invading outside the kidney in CT examination which nearly approximate the postoperative findings that in 60% localized to kidney and 40% extending outside the kidney. Conclusion: US plays important role in detection and evaluation of renal masses as initial technique for kidneys studies in the course of abdominal imaging. Sonography is very accurate in distinguishing cystic from solid tissue. CT scan remains to be the single most important technique in the detection, diagnosis and staging of renal masses.

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