3. With regard to the functions of the pelvic viscera, urine may
be passed by both penises, by one only, or by neither. In the
last instance it finds exit by an aperture in the perineum. There
is reason to believe that semen may be passed in the same way;
but in most of the recorded cases there has been sterility, if
not inability to perform the sexual act.
4. All the degrees of duplication have been met with, from a
fissure of the glans penis to the presence of two distinct
penises inserted at some distance from each other in the inguinal
regions.
5. The two penises are usually somewhat defective as regards
prepuce, urethra, etc.; they may lie side by side, or more rarely
may be situated anteroposteriorly; they may be equal in size, or
less commonly one is distinctly larger than the other; and one or
both may be perforate or imperforate.
6. The scrotum may be normal or split; the testicles, commonly
two in number, may be normal or atrophic, descended or
undescended; the prostate may be normal or imperfectly developed,
as may also the vasa deferentia and vesiculae seminales.
7. The commonly associated defects are: More or less completely
septate bladder, atresia ani, or more rarely double anus, double
urethra, increased breadth of the bony pelvis with defect of the
symphysis pubis, and possibly duplication of the lower end of the
spine, and hernia of some of the abdominal contents into a
perineal pouch.
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