What is the definition or description of: penile cancer?

A penile skin cancer. Most penile cancers arise in the skin of the penis from the squamous cell layer (surface.) the pathology is typically a squamous cell cancer. http://www.cancer.gov/cancertopics/types/penile.
Not a common. Cancer. Occurs more commonly in uncircumcized, older men; usually on the glans rather than the shaft, starts and looks like a sore or even chancre, but biopsy shows malignant squamous cells. Viral origin postulated and being investigated.