Congenital malformations of penis and scrotum
Clinical signs
- Hypospadia:
- deficient closure of urethral sulcus in 11th – 12th week of gestation
- urethra leads into any place on the lower side (ventral surface)
of the penis from glans penis to perineum
- ventral penis flexion is caused by fibrous band (chorda urethrae)
- incidence is 1 : 350
- more serious hypospadia (urethra leads to the scrotum, perineum) is a symptom of
feminization and has to be differentiated from intersex
- Epispadia:
- congenital malformations of genital tubercle
- urethra leads to the dorsum of the penis
- see urinary bladder extrophy
- Complete penoscrotal transposition (synonyms: prepenile scrotum, transposition of the penis)
- abnormal development of indifferent external genitalia in 4th – 5th week of gestation
- very rare defect, occurs sporadically
- sometimes part of syndromes, e.g. Smith-Lemli-Opitz
Pictures
Hypospadia:
SLOS, Macro, autopsy (72456)
Penoscrotal transposition; penis is under scrotum, serious
hypospadia, associated with defects of kidneys and efferent
urinary tracts, 24-week fetus:
Penoscrotal transposition, Macro, autopsy (72454)
Penis transposition, perineal hypospadia:
Penoscrotal transposition, perineal hypospadia, Macro, autopsy (72455)