- Duplication of the penis.
- Rare anomaly that may range from small accessory penis to the real deal – times two (image A).
- Associated anomalies: hypospadias, bifid scrotum, duplicated bladder, renal agenesis/ ectopia, etc.
Aphallia (penile agenesis)
- Results from failure of the genital tubercle to develop.
- Incidence: 1/10,000,000 live male births (only 70 reported cases).
- Usually has appearance of well-developed scrotum with bilaterally descended testes, but no penile shaft (image B).
- Urethral opening most often on the anal verge adjacent to a small skin tag; otherwise, may be in rectum.
- Associated anomalies: cryptorchidism, horseshoe kidney, renal agenesis, imperforate anus, etc.