Majority of penile metastases comes from primary malignancies of which organ system ?
Genitourinary tract malignancies such as prostate and bladder cancers.
The sagittal and coronal T2 weighted images show erect penis with both corpora cavernosa infiltrated with innumerable hypointense nodules of variable sizes. Contrast-enhanced fat suppressed T1 weighted sagittal and coronal images show these nodules to be hypoenhancing as compared to barely spared enhancing normal corpora.