Detection of renal masses: sensitivities and specificities of excretory urography/linear tomography, US, and CT.

Abstract

A prospective blinded study of 201 patients was performed to determine the relative sensitivities and specificities of excretory urography/linear tomography (EU/LT) and ultrasound (US) for the diagnosis of renal parenchymal masses. Computed tomography (CT) was used as a standard. EU/LT permitted detection of 10% of CT-confirmed masses (cystic or solid) less than 1 cm, 21% of lesions greater than or equal to 1 cm but less than 2 cm, 52% of lesions greater than or equal to 2 cm but less than 3 cm, and 85% of lesions 3 cm or more in diameter. US permitted detection of 26% of CT-confirmed lesions less than 1 cm, 60% of lesions greater than or equal to 1 cm but less than 2 cm, 82% of lesions greater than or equal to 2 cm but less than 3 cm, and 85% of lesions 3 cm or more in size. The results confirm the relative insensitivity of EU/LT for masses less than 3 cm in diameter and of US for masses less than 2 cm. Further, they suggest that CT may have a role not only in evaluation of cases in which the urographic or sonographic results are questionable or positive, but also in confirmation of apparently negative urographic findings when clinical suspicion of a lesion is high.

Canadian guidelines for the management of asymptomatic microscopic hematuria in adults

“…Intravenous urography (IVU), ultrasonography (US), and enhanced computed tomography (CT) are the modalities used most commonly. Although there are numerous studies describing the application of these modalities in this setting, [8][9][10][11] there are no comparative studies that can help establish an evidence-based policy.…”

“…However, fewer centres are offering IVU and the study has a limited sensitivity for diagnosing renal cell carcinoma. 11 Ultrasound is also widely available. Moreover, it is noninvasive, does not require ionizing radiation or intravenous contrast and, compared to CT, is less expensive.…”

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

“…In studies conducted by Linblad [50] , Lipworth et al [51] and NG et al [52] renal cell carcinoma emerged as the commonest tumour in men than in women. In study conducted by Warshauer et al [25] specificity, positive predictive value and negative predictive value of USG for the detection of renal masses were 91%, 82% and 73% respectively. Our study correlates with study of Levitt et al [11] which concluded that CT and USG offer complementary and supplementary role in the evaluation of renal and pancreatic disease.In their study specificity, sensitivity, positive predictive value and negative predictive value of CT for detection of renal masses were 100%, 90%, 100% and 96.88%.…”

RECURRENT PERI-OP HAEMATURIA IN REPEAT LOWER SEGMENT CAESAREAN SECTION: an unusual Presentation of Renal Cell Carcinoma in Pregnancy (A Case report with Literature Review)

“…USG is the safest method for diagnosis of the renal tumours in pregnancy with the equal sensitivity of 85% as compared to Intravenous pyelography (IVP) and CT. 11 MRI is a suitable option due to its least radiation exposure and no harm to the fetus. CECT in pregnancy is usually not recommended due to radiation hazards to the fetus, though this is more sensitive to detect pulmonary metastasis.…”