What is the most common extratesticular scrotal tumor?
Spermatic cord lipoma is the most common extratesticular scrotal tumor. On US, it is echogenic, and it does not have increased blood flow on Doppler US. On CT and MRI, it has attenuation and signal intensity properties similar to those of fat elsewhere in the body.
The major differential diagnostic consideration for a spermatic cord lipoma is a fat-containing inguinal hernia.
