case_images: PMC9673600_01
case_images: (a) B-mode sonography of the left testis shows an intratesticular mass with concentric rings of alternating echogenicity with a more echogenic central core. (b) Color Doppler sonography shows the absence of a vascular signal within the mass and a more echogenic central core (arrowhead).
case_images: jbsr-106-1-2951-g1.jpg
case_images: PMC9673600_02_jbsr-106-1-2951-g1.jpg
case_images: F1
case_images: The lesion demonstrated an 'onion ring' appearance with an echogenic central target appearance and was avascular on color Doppler sonography (Figure 2, Video 1).
case_images: PMC9673600_02
case_images: (a) B-mode sonography of the left testis shows an intratesticular mass with concentric rings of alternating echogenicity with a more echogenic central core. (b) Color Doppler sonography shows the absence of a vascular signal within the mass and a more echogenic central core (arrowhead).
case_images: jbsr-106-1-2951-g1.jpg
case_images: PMC9673600_02_jbsr-106-1-2951-g1.jpg
case_images: F1
case_images: The lesion demonstrated an 'onion ring' appearance with an echogenic central target appearance and was avascular on color Doppler sonography (Figure 2, Video 1).
case_images: Ultrasonography of the right hemiscrotum shows a mild hydrocele and an extratesticular intrascrotal mass with concentric rings of alternating echogenicity. Note the hyperechogenic central core (arrowhead).
case_images: jbsr-106-1-2951-g2.jpg
case_images: PMC9673600_02_jbsr-106-1-2951-g2.jpg
case_images: F2
case_images: The lesion demonstrated an 'onion ring' appearance with an echogenic central target appearance and was avascular on color Doppler sonography (Figure 2, Video 1).