Abstract
Scrotal ultrasound with high-resolution transducers and additional display of vascularisation in colour-coded ultrasonography is the method of choice for the detection and characterisation of testicular tumors. Within the last decade, testicular ultrasonography has been further refined and improved by the possibilities of contrast-enhanced ultrasound (CEUS).CEUS may be especially helpful in the assessment of vascularisation disorders (e.g., incomplete torsion, segmental perfusion disorders, abscesses) or testicular foci remaining equivocal even after colour-coded ultrasonography.The basic idea in the application of CEUS in scrotal sonography is the possibility to differentiate between avascular, hypo- and hypervascular findings, with alack of perfusion generally considered as asign of benignity. Vice versa, detection of vascularisation speaks for neoplasia but not necessarily for malignity (e.g., Leydig cell tumors). CEUS is especially valuable in the correct classification of small (<1.5 cm) testicular foci.This review summarizes the present knowledge on indications, implications and limitations of the application of CEUS in testicular tumors.
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