19 Elsner, Dublin Journal Medical Sciences, May, 1882, p. 380.
20 Diseases of Ovaries, by L. Tait, 4th ed., p. 177.
SYMPTOMS.—These congenital tumors begin early in life, and usually remain dormant until puberty. Then the periodic congestions of menstruation usually stimulate them into growth. Sometimes they need the increased vascularization of pregnancy. They are more liable than ovarian cysts to inflammation and suppuration, but they grow much more slowly, and very rarely reach the large size of the latter. They are also very liable to contract adhesions to every structure they touch, making their extirpation very difficult and sometimes impossible. Often they create pain out of all proportion to their size. Occasionally, they break and empty their contents through fistulous communications with the intestines, bladder, or the abdominal wall. But collapse of the usually thick walls of the cyst does not take place, and a cure results far less frequently than in pelvic abscesses, which empty themselves through analogous channels. The cyst ordinarily does not lessen in size; suppuration goes on with hectic fever and exhaustion, which finally carry off the patient.
DIAGNOSIS.—Quiescent or slow-growing pelvic tumors, semi-solid to the feel, and first discovered at the age of puberty, are usually dermoid cysts. Their small size is also an aid to diagnosis, for they very rarely reach the bulk of the adult head. On several occasions I have found them in Douglas's pouch, fig-shaped and flattened in their antero-posterior diameter. From its attachments to neighboring structures a dermoid cyst is very liable to be mistaken for the cyst of an extra-uterine foetation. But the exclusion of the history of pregnancy and the slow growth of a dermoid cyst, unless suppuration has taken place, ought to distinguish the one from the other.
TREATMENT.—While quiescent the cyst should not be touched, as it is very vulnerable and liable to resent the slightest injury, even from the slender trocar of the aspirator. If suppuration takes place and the tumor points to the surface, it should be treated, like any other abscess, by a free incision, by the evacuation of its contents, by the introduction of a drainage-tube, and by the injection of antiseptic solutions. Small cysts lying in Douglas's pouch can sometimes be cured by aspiration; at least I have twice succeeded in obliterating them in this way. The operation was, however, followed by suppuration of the cyst, the abscess bursting into the vagina. If after an exploratory incision an abdominal cyst turns out to be dermoid, it should be extirpated. But if extensive adhesions preclude such an operation, the cyst should be opened, evacuated, and thoroughly cleansed. The edges of the opening should then be stitched to those of the abdominal wound and a drainage-tube put in. The after-treatment of such a case will be analogous to that of an ovarian cyst under like conditions, to which the reader is referred.
Cystic Tumors of the Ovary.
These represent by far the most frequent variety of ovarian tumors, and as such demand our best attention. They consist, in probably the majority of cases, in a dropsical enlargement of one ovisac or of more—viz. in a follicular dropsy. Indeed, as Cazeaux has aptly said, the ovisacs, or Graäfian follicles, are ovarian cysts in miniature. These cysts are divided into three classes, which depend wholly upon the number of ovisacs involved. Thus, a single, or barren, cyst, containing merely fluid, is called a monocyst or unilocular cyst. Such a cyst would be due to the dropsical enlargement of but one ovisac. It is extremely rare—so much so that its existence is denied. The probability is that a one-chambered sac does not begin as such, but it becomes so through the breaking of the walls of other contained cysts. A multiple cyst is caused by the simultaneous growth of two or more ovisacs, one of which usually takes the lead in growth and keeps the others dwarfed. This form of cyst is by far the most common. It grows with great rapidity, and may reach a weight of over one hundred pounds. I have successfully removed one weighing one hundred and twelve pounds. A proliferous cyst is a mother-cyst packed with innumerable child-cysts of varying size. These endogenous cysts multiply by exogenous and endogenous growth. The proliferous cyst rarely attains to the size of the multiple cyst, but surgically it is a solid tumor, because it cannot be emptied by tapping, and therefore often needs a long incision for its removal. It also usually possesses a very thin wall, which is liable to be torn during the needful manipulation for its removal. Racemose cysts are occasionally met with. They consist of a number of isolated cysts of varying size attached to one common stalk like a bunch of grapes. I have met with two such examples. Tait thinks that they are "produced by the retention of the ova in the Graäfian follicles, and the distension of their cavities by a continuous secretion of the liquor folliculi."
The pedicle or stalk by which an ovarian cyst is attached to the womb consists of the corresponding broad ligament, oviduct, ovarian ligament, and vessels. The pedicle is sometimes long and slender, at other times short and broad. There is one form of ovarian cyst which has no proper pedicle. It grows between the two layers of the broad ligament, and tends to develop downward into Douglas's pouch. It is called the intra-ligamentous cyst, and needs careful and tedious enucleation for its removal. Sometimes, indeed, extirpation is out of the question, and the cyst has to be treated by the drainage-tube, as will hereafter be shown.
The contents of ovarian cysts vary very greatly in color and in consistency. In monocysts the fluid is often limpid and colorless. In multiple cysts the contents are usually syrupy, thick, and turbid. Sometimes the color is quite dark, as much so as weak coffee. The surface of the fluid, after standing, will be covered with a pellicle of cholesterin crystals, which sparkle in the sunlight. In proliferous cysts the contents are usually viscid, sometimes as much so as jelly, and to this the term colloid is applied. Foulis, who is an authority on this subject, states that he has "never found that an ovarian fluid, however long kept, ever deposited a precipitate spontaneously. Whereas very frequently in the case of an ascitic fluid such a spontaneous precipitate appeared within a period varying from a few hours to a few days."21 Again he observes: "After ten years of observation made on fluids withdrawn by the aspirator, I found that ovarian fluids never throw down a precipitate of a fibrinous character. An ovarian fluid was always a pure cellular secretion. An ascitic fluid was always the result of obstruction to the circulation or of inflammatory action in the peritoneum, and ascitic fluids allowed to stand for a short time nearly always showed a precipitate with the character of felted material under the microscope. If they tapped the patient and subjected the fluid to this test, two or three days would suffice to tell in cases in which there was doubt. The deposit in ovarian fluids showed cellular, not fibrinous, elements under the microscope."22
21 Edinburgh Medical Journal, July, 1885, p. 76.