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In the rutting season the testes become much larger and descend into the scrotal sacs, at other times of the year being apparently more or less abdominal. In rabbits and hares, which have a much more impulsive progression, the organs seem to be always in the scrotal sacs.
If these veins, however, dilate until they form a considerable mass, known as VARICOCELE, they may affect the sexual apparatus deleteriously in two ways: The increased weight in the scrotal sac may cause the sac to become elongated and to annoy the subject by its traction on the spermatic cord.
These glands are lodged in the scrotal sack, situated between the two thighs. Lying along the superior border of the testicle is a mass of ducts, the epididymis. The vas deferens is the canal or duct that passes from the epididymis to the region of the bladder and terminates near its neck by emptying into the seminal vesicles.
In this form of hernia the size of the sac is sometimes enormous, the accompanying illustration showing extreme cases of both scrotal and labial hernia. Umbilical hernia may be classed under three heads: congenital, infantile, and adult. Congenital umbilical hernia occurs most frequently in children, and is brought about by the failure of the abdominal walls to close.
There the abdominal wall on either side of the middle line becomes thin and distended to form a pouch, the scrotal sac, into which the testis passes, still remaining attached to the peritoneum which lines the pouch, while the distal end of the vas deferens retains its original connexion with the urethra.
We have here, then, in the position of the testes in Mammalia a condition which is not in the slightest degree 'adaptive' in the ordinary sense that is, fulfilling any special function or utility. The condition must be regarded as distinctly disadvantageous, since the organs are more exposed to injury, and the abdominal wall is weakened, as we know from the risk of scrotal hernia in man.
Scrotal tumors are recorded that weighed over 200 pounds; and a limb affected with elephantiasis may attain an astonishing size. Delamater is accredited with a report of a tumor that weighed 275 pounds, the patient only weighing 100 pounds at death. Benign tumors will be considered first. Pure adenoma of the breast is a rare growth.
He cites an instance of six testicles four of which were of usual size and two smaller than ordinary. Baillie, the Ephemerides, and Schurig mention fusion of the testicles, or synorchidism, somewhat after the manner of the normal disposition of the batrachians and also the kangaroos, in the former of which the fusion is abdominal and in the latter scrotal.
This complication is not usually serious, and can be prevented and controlled by observing proper precautions in cutting off the cord, or by picking up the cut ends of the vessel and ligating it. Packing the scrotal sack with sterile gauze or absorbent cotton, and closing the incision with sutures may be practised for the purpose of stopping this form of haemorrhage.
Accordingly hernia, with Gilbert, includes not only scrotal hernia, but also hydrocele, orchitis, tumors of the testicles, etc. This is apparent, too, in his treatment of hernia, which consists usually in the employment of various poultices and ointments, bleeding from the saphena, cups over the kidneys, etc., though hydrocele is tapped and a seton inserted.
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