Page 201 - Manual of Equine Field Surgery

Cryptorchid Castration 197

A B c

Figure lS-1 Three different positions of a retained testicle ( cryptorchidism). A, Inguinal retention within the

inguinal canal. B, Incomplete or partial abdominal retention. C, Complete abdominal retention.

Superficial iguinal
.
nng

-.'t.

l~-

~QJ\/,)~:t:.·~

Figure lS-2 Location of the superficial inguinal

ring. Straight dotted line indicates the cranial border of Figure lS-4 The inguinal extension of the guber-

the pubis.
naculum (small arrow) has been used to locate the

vaginal process (large arrow) in a cryptorchid.

abdominal cryptorchids will have only the epi-

didymis present in the vaginal tunic, and with

gentle traction and occasional enlargement of

the vaginal ring, the testicle can be found and

Figure lS-l Schematic view of the inguinal exten- removed. It is important that the descended tail of

sion of the gubernaculum. the epididymis not be mistaken for a small testi-

cle and removed without removal of the abdom-

inal testicle (Figures 35-6 and 35-7).

sion of the gubernaculum or the vaginal process

(Pigures 35-3 and 35-4). Noninvasive Inguinal Approach

If the testicle is inguinal, it will be identified at

this point and can be removed using emasculation If the testicle is abdominal, the cranial medial

(Figure 3 5-5). The vaginal tunic should be opened aspect of the superficial inguinal ring is searched

to confirm the presence of a testicle. Incomplete for the inguinal extension of the gubernaculum