Small (< or = 3-cm) renal masses: detection with CT versus US and pathologic correlation.

Abstract

A substantial proportion of lesions under 1 cm were not detected with either modality. Neither CT nor US was superior in the characterization of lesions 3 cm or less. CT and particularly US screening studies in patients with von Hippel-Lindau disease should be interpreted cautiously because missed or mischaracterized small renal lesions are a frequent problem in these patients.

Comparative Evaluation of Ultrasonography and Computed Tomography Findings in Renal Masses.

“…CT was better in detecting perinephric extension and lymph nodal involvement in renal masses. Our study correlates with the studies of Kostakopoulos et al [29] (1990) and Jamis-Dow et al [39] (1996) which showed better 2179 sensitivity of CT in detection of small lesions of kidney but this sensitivity is directly proportional to the size of lesion.…”

“…CT modality was found to be more sensitive in detection of small lesions as one lesion missed on USG was detected on CT, which was measuring less than 3 cm (2.6 cm) in size as shown in Table 9. Similarly, the studies by Kostakopouloset al [29] (1990) and Jamis-Dow et al [39] (1996) showed better sensitivity of CT in detection of small lesions of kidney in comparison to USG but a substantial proportion of small lesions were not visualized with either modality. Study of Bowen et al [1] also concluded that CT and MRI imaging are nearly ideal techniques for the detection, diagnosis, staging, and preoperative evaluation of small renal masses.…”

Canadian guidelines for the management of asymptomatic microscopic hematuria in adults

“…However, like IVU, it has limited sensitivity for small renal masses. 12 It also has a limited sensitivity for diagnosing transitional cell carcinoma.…”

The role of renal biopsy in small renal masses

“…However, the use of US seems to be closely related to the size of the lesion, with small lesions being very difficult to diagnose and characterized. 6 Therefore, in SRM the role of CEUS alone is limited. Multiphasic multislice CT has been considered the standard imaging test for characterizing renal masses in the last three decades.…”