TREATMENT.—Since these cysts do not ordinarily affect the general health or grow to a very large size, they should, as a rule, be let alone. Whenever grounds for interference arise the cyst should be aspirated, for sometimes after being wholly emptied it does not refill. Should, however, the fluid return, the cyst must be extirpated in precisely the same way as an ovarian tumor. When it is without a pedicle it will have to be carefully enucleated from between the folds of the broad ligament, which then cover it. If this cannot be done, all of the cyst possible should be removed, the edges stitched to the abdominal wound, and a drainage-tube put in. This is the advice ordinarily given, but I have not yet met with a cyst of this variety which could not be removed. Were such a one to occur in my practice I should be tempted to remove all of the cyst possible, and to close up the adherent portion in the cavity of the abdomen without resorting to a drainage-tube. The fluid secreted by a parovarian cyst is so bland that I believe no mischief would arise. The late Washington L. Atlee was accustomed to make merely a large circular opening in the cyst, without attempting to remove it.

Cysts of the Oviducts, or Fallopian Dropsy.

These tumors may contain either fluid or pus. In the former case the cyst is called hydro-salpinx; in the latter, pyo-salpinx. They are caused by salpingitis, or inflammation of the oviduct, which exists rarely per se, unless of gonorrhoeal origin, but is one of the sequels of pelvic peritonitis. The distension of the tube is due to the occlusion of each of its ends. Thus by pelvic inflammation the fimbriæ become glued to the ovary, sealing up the ovarian end, while an endometritis closes the uterine opening. In addition to the dropsy of the tube, I have repeatedly met with small cysts, or bladder-like bodies outside of the tube proper, very analogous to those found on the umbilical cord.

This affection is by no means an uncommon one, every age being liable to it, and it is often the unrecognized cause of ill-health. Since Tait first called the attention of the profession to the frequency of the disease and the means for its cure, many cases have been reported in which obscure pelvic symptoms were cured by the removal of the ovaries and of the oviducts—the uterine appendages, as they are called.

DIAGNOSIS.—This is difficult, because the symptoms are those of pelvic peritonitis or of pelvic cellulitis, the disease of the oviduct being usually associated with that of the broad ligament. In some cases the womb will be found movable, with a sausage-like tumor behind it; the diagnosis is then easy. Usually, the symptoms are negative, and the diagnosis is based upon constant groin-pains and recurring attacks of pelvic inflammation.

TREATMENT.—Like hydrocele of Nuck's canal, hydro-salpinx occasionally heals spontaneously, but more frequently it will need aspiration, together with injections of iodine or of carbolic acid. When pus is present, absorption probably never takes place, and an operation will be needed. If the symptoms are grave enough to warrant an exploratory incision, and dropsy of the tubes be discovered, both the tube and its ovary should be extirpated, for in the great majority of cases the corresponding ovary will have undergone follicular or interstitial degeneration. Unless there are very good reasons for adopting a different course, both ovaries and tubes should be removed, because the sound ovary, together with its tube, is liable to become diseased. The incision should always be abdominal, and not larger than to admit two fingers. The broad ligament is transfixed between the tube and the ovarian ligament by a double ligature and tied on either side. The operation is, in fact, analogous to that of öophorectomy. When the tubes contain pus, they are liable to become adherent to the sigmoid flexure, to the rectum, or to the small intestines, making their removal very difficult—sometimes, indeed, impossible. The separation of such adhesions requires the greatest care and delicacy.

Cysts of the Terminal Vesicle of the Oviduct.

A little bladder-like body, not larger than a pea, is often found hanging by a thread-like stalk from one of the fimbriæ of the oviduct. It is a relic of foetal life, being probably the remains of the Wolffian body, and sometimes goes by the name of the hydatid or vesicle of Morgagni. The walls are very thin and covered by peritoneum. What rôle these vesicles play in the economy is uncertain, but they have been found to undergo cystic degeneration. They rarely attain to a size larger than that of an orange, and then either remain stationary or else burst. I have met with several examples of cysts which, after reaching the above size, did not grow any larger. I have also met with one case in which, after attaining the bulk of a small apple, the cyst burst, and immediately refilled, to burst again and again at intervals of from four to six weeks.13 The collapse of the sac was attended each time by colicky pains, but of no great severity.

13 "Bursting Cysts of the Abdominal Cavity," by Wm. Goodell, Trans. Amer. Gynæcol. Soc., 1881, p. 228.