Normal prostate (MRI)

Discussion:

Normal volume of the prostate should be less than 30 ml. This is calculated by 0.52 x length x width x height.

MRI imaging is helpful in differentiation the prostatic zonal anatomy (best demonstrated on T2WI).

Special techniques are used to improve the early detection of prostate cancer such as DWI, dynamic-contrast enhanced MRI and MR spectroscopy.

The majority of cancers arise from the peripheral zone (PZ).

The central gland has heterogeneous signal in older men secondary to benign prostatic hypertrophy (BPH), the BPH nodules usually involves the transition zone. 

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