A published scientific report stated that men with congenital bilateral absence of vas deferens
(CBAVD) have a mild form of cystic fibrosis (CF) (60).
8) divided these cases according to anatomic and functional properties, such as having drainage to an epididymis and vas deferens
, which is suggestive of reproductive function.
Phase II clinical trial of a vas deferens
injectable contraceptive for the male, Contraception, 1997, 56(4):245-250, <http://www.
enters the bulb from the upper side between these two lobes.
They are usually found within the epididymis or along the course of the vas deferens
It consists of enlarge veins (varicose veins) around the epididymis and vas deferens
Removal of uterus and its derivatives can be performed provided, care is taken not to damage the vas deferens
, if there is some spermatogenesis.
3) Both may be secondary to testicular failure or obstruction inside the testis, epididymis, vas deferens
or ejaculatory duct.
The total length of the vas deferens
was cut equally into the proximal, middle and distal portions.
Leung (1988) classified cases of polyorchidism into four types, of which the triorchid hummingbird seems to fit into 'type C', which is characterized by the supernumerary testis having its own epididymis and sharing the ductus deferens
with the regular testis in a parallel fashion.
Sadler in this regard also mentioned that anterior tubes and glomeruli of mesonephros, appear degenerative changes and until the end of the second month most of them disappear and in a small number of males only the posterior duct of mesonephros tubes remain and involved in the formation of the genital system (epididymis, vas deferens
channels, vesicles seminal, etc.
Spectrum of CFTR mutations in cystic fibrosis and in congenital absence of the vas deferens