Regarding ultrasound of scrotum,
1. Increased blood flow to the epididymis is the most sensitive sign of epididymitis
2. Epidermoid cysts have characteristic alternating hyper and hypoechoic bands
3. Epididymal papillary cystadenomas are associated with Osler-Rendu-Weber syndrome
4. Adenomotoid tumors are the most common spermatic cord tumours.
5. Adenomatoid tumours of the epididymis most often arise from the head.
Answers: F, T, F, F, F
Notes: Increased size of epididymis and/or scrotum is the most sensitive sign of epididymoorchitis on ultrasound. Epididymal papillary cystadenomas are associated with von Hippel Lindau syndrome. Adenomatoid tumors are the most common benign solid tumours of epididymis (most often arise from tail), and lipomas are the commenest spermatid cord tumours.
Reference: Stengel JW et al. Sonography of the scrotum: case based review. AJR June 2008. S35-S45
