What is penile cancer?
The penis is part of the urinary system. It contains the urethra, which carries urine from the bladder to the outside of the body.
The penis is also a male sex organ. During an erection, nerves signal the blood vessels
inside the corpora cavernosa of the penis to fill with blood. When the blood flow
increases, the spongy tissue expands and causes the penis to stiffen and enlarge. This
allows the penis to be inserted into the vagina during sexual intercourse.
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Martini FH, Timmons MJ, Tallitsch RB. Human Anatomy. 7th ed. San Francisco: Pearson Benjamin Cummings; 2012.
Trabulsi EJ, Gomell LG . Cancer of the urethra and penis. DeVita VT Jr, Lawrence TS, Rosenberg SA. Cancer: Principles & Practice of Oncology. 10th ed. Philadelphia: Wolters Kluwer Health/Lippincott Williams & Wilkins; 2015: 69:981-987.