What portion of the prostate gland surrounds the central zone & comprises 70-75% of the gland?

For the graduated cylinder shown below the the volume should be reported to the [place1] value.  

What is the name of the congenital anomaly in which a huge fourth ventricle cyst occupies the area where the cerebellum usually lies, with secondary dilation of the third and lateral ventricles?

A 43 year old woman presents for a breast ultrasound after noticing a bloody  discharge from her nipple. On your scan you note a mass in the subareolar area. What does this most likely represent?

This image was obtained from a 6 month old female patient with the loss of power in her lower extremities. What is the most likely diagnosis?   

What does this image represent?  

How are ultrasound contrast agents excreted from the body?

What is the pathology demonstrated in these images?  

Which one of the following is the most likely condition to lead to cirrhosis in neonatal patients?

This contrast enhanced image of a liver mass was taken on a patient with a history of alcoholism and cirrhosis and a positive alpha fetoprotein. What is the likely diagnosis?