Contrast enhanced ct evaluation of solid renal masses

Bhoomi Angirish., Chandresh Bharada., Harshad Shah and Rasesh Vyas

Objective: The objective of the study was to evaluate solid renal masses using CECT and to differentiate them on the basis of their attenuation and contrast enhancement characteristics.

Materials And Methods: The present study included 60 patients. The study was conducted from December 2014 to December 2016. Somatom Emotion 16 slice CT machine was used. All patients were evaluated with detailed history and clinical reports.

Results: Out of 60 patients, 33 patients had benign etiology. Rest 27, had a malignant etiology of the renal mass. There were 20 cases of renal cell carcinoma with the most common age group of 50-60 years affected by RCC. Benign masses included angiomyolipoma (6.6%), oncocytoma (3.3%), renal abscess (18.3%), hematoma (13.3%).

Conclusion: For a suspected renal mass, contrast enhanced CT performed in corticomedullary, nephrogenic and excretory phases play a major role in defining the characteristics of the lesion.Renal neoplasm shows greater enhacement in nephrogenic phase compared to corticomedullary phase. CT helps to determine the perinephric extension, invasion into renal vein and IVC, lymph node assessment and evaluation of distant metastasis. Pattern of enhancement of benign masses depends on the etiology. Imaging of renal masses includes accurate characterization of the lesion, assistance with treatment planning, and evaluation of treatment response.

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