"The presentation can be similar to those of malignant germ cell tumours. Patients typically present with a painless and non-tender, testicular mass between 1-3 cm in diameter."
"extra-testicular epidermal inclusion cyst, typically arises from the scrotal wall 8"
"T1: overall signal can be variable; may show alternating rings of high and low signal"
"T2: may show a low-intensity rim 3; may also show alternating rings of high and low signal"
"If the diagnosis of an epidermoid is suspected at the preoperative ultrasound, the lesion can be enucleated and frozen sections obtained to confirm the diagnosis. However, treatment is controversial; some authorities advocate orchidectomy, others suggest organ-sparing surgery."