Diagnostic ultrasound ( PDFDrive )

CHAPTER 9 The Kidney and Urinary Tract 345
A
B
FIG. 9.51 Renal Oncocytoma. (A) Sagittal sonogram shows a large, isoechoic, partially exophytic renal mass that cannot be differentiated
from renal cell carcinoma. (B) Ultrasound-guided biopsy of an isoechoic renal lesion (arrowheads) in another patient, performed before possible
cryoablation, conirms an oncocytoma.
A
B
C
D
E
FIG. 9.52 Venous Thrombosis With Renal Cell Carcinoma. (A) Sagittal sonogram shows a huge iniltrating right upper-pole renal cell carcinoma.
(B) Transverse ultrasound and simultaneous color Doppler image shows nonocclusive but expansile malignant thrombus within right renal vein and
inferior vena cava (IVC). (C) Sagittal ultrasound of the same patient shows echogenic, nonocclusive thrombus within suprarenal IVC. Clot extends
to 1 cm below the hepatic venous conluence. (D) Sagittal sonogram in another patient shows expansile, malignant thrombus within retrohepatic
IVC. (E) Transverse sonogram in the same patient in D showing partially adherent malignant thrombus in the IVC.