The purpose of this study was to retrospectively analyze the diagnostic accuracy of magnetic resonance imaging (MRI) examinations of the scrotum in comparison with standard ultrasound (US) and histopathology.
A retrospective multi-center analysis of MRI examinations of the scrotum performed between 06/2008 and 04/2021 was conducted.
A total of n = 113 patients were included. A total of 53 histopathologies were available, with 52.8% malignant and 50.9% benign findings. Related to histopathology, imaging was true negative, false negative, false positive, and true positive in 4.1%, 2.1%, 25.0% and 37.5% for standard ultrasound (US) and 9.1%, 1.8%, 25.5% and 43.6% for MRI. Sensitivity, specificity, positive predictive value and negative predictive value were 94.7%, 20.0%, 36.0% and 88.9% for US and 85.7%, 72.8%, 52.1% and 93.7% for MRI, respectively. Benign lesions were significantly smaller than malignant ones in standard US (p = 0.001), histopathology (p = 0.001) and MRI (p = 0.004). The size of malignant tumors did not differ significantly between histopathology and standard US (0.72) and between histopathology and MRI (p = 0.88).
MRI shows good sensitivity and specificity for the estimation of testicular tumors in this collective. Benign lesions are significantly smaller than malignant ones. Both MRI and US can estimate the size of malignant tumors adequately.
Cancers. 2022 Jul 23*** epublish ***
Susanne Deininger, Lukas Lusuardi, Maximilian Pallauf, Stefan Hecht, Rosemarie Forstner, Matthias Meissnitzer, Florian A Distler, Eva Erne, Sebastian Graf, Sebastian Lenart, Juliane Putz, Christian Deininger, Peter Törzsök
Department of Urology and Andrology, Paracelsus Medical University, 5020 Salzburg, Austria., Department of Radiology, Paracelsus Medical University, 5020 Salzburg, Austria., Department of Urology, Paracelsus Medical University, 90419 Nürnberg, Germany., Department of Urology, Eberhard Karls University, 72076 Tübingen, Germany., Department of Urology and Andrology, Kepler University, 4020 Linz, Austria., Department of Urology and Andrology, Barmherzige Brüder Hospital, 1020 Vienna, Austria., Department of Urology, Carl Gustav Carus University, Technische Universität Dresden, 01307 Dresden, Germany., Institute of Tendon and Bone Regeneration, Spinal Cord Injury & Tissue Regeneration Center Salzburg, 5020 Salzburg, Austria.