It is probable also that the process is sometimes arrested in the second stage, neither resolution nor suppuration taking place, the serous portion of the liquor sanguinis being absorbed, the remainder undergoing a change to plastic lymph, so called, which proceeds to organization, resulting in persistent induration of the affected parts; or, instead of being absorbed, the serum may remain encysted within cavities formed for it by the lymph. This likewise subjects the patient to the constant menace of a renewal of the inflammation. The late D. Warren Brickell of New Orleans has called special attention to what he named the serous form of pelvic inflammation, and which he thought had been too much neglected.2 I have met with at least one well-marked case which supports Brickell's views.

2 "The Treatment of Pelvic Effusions," Amer. Journ. of the Med. Sciences, Philada., April, 1877.

The usual course, however, of an acute parametritis which has advanced to suppuration is evacuation of the pus by the most favorable channel—i.e. through the rectum or vagina. If through the latter organ, the point of perforation is either directly posterior to, or a little to the side of, the cervix. But if the inflammation be located in the vesico-uterine space—which is rare, however—the point of rupture may be anterior to the cervix. Less frequently the bladder is perforated and the pus discharged with the urine. More rarely the abscess is discharged through the abdominal wall, groin, or saphenous opening, and still more rarely through the sacro-ischiatic and obturator foramina. It may also find exit through the floor of the pelvis near the anus, and it may rupture into the peritoneal cavity, but the latter termination is fortunately the least common. This is probably due to the fact that the slightest irritation and pressure, under these circumstances especially, result in adhesive inflammation between the peritoneal surface of the abscess and that of the intestine with which it may be in contact, thus favoring rupture into the intestinal tract. Then, rupture into the intestine is conservative and protective, and the other is not, for should the pus be discharged into the peritoneal cavity the patient would most likely perish.

When the abscess opens at its most dependent portion, which is the rule, it is kept thoroughly drained of the pus, and if a single cavity exists it gradually contracts, and under favorable circumstances soon disappears, the trouble ending by absorption of the wall of the abscess. This is the most favorable termination of a parametritis, and belongs only to the acute form.

When the pus has not been evacuated from the bottom of the sac, or when there is more than a single cavity and only one is drained, or where the pus has taken one of the circuitous routes mentioned above, the disease merges into the chronic form, and may then be indefinitely prolonged by the formation and evacuation of abscess after abscess, until the pelvic cellular tissue becomes involved throughout and riddled by fistulous tracts connecting them.

SYMPTOMATOLOGY.—Pain is probably the first symptom to attract the attention of the patient, and if the attack is sudden or acute the pain is usually attended by a chill of more or less severity. The pain may be so sharp and lancinating as to cause the patient to cry out in agony, or it may be of a throbbing, aching character. If the former, it indicates either intense congestion of the vessels and tissues involved, or that the peritoneum is largely implicated, probably both. Where the pain is of this character the attack is usually of shorter duration, since it is soon followed by the second stage, exudation, when the symptom is at once modified, becoming less acute and resembling now the pain attending an attack of less severity. Of course the location of the pain corresponds to the seat of the inflammatory process. If it is in one or the other broad ligament, the pain is greater in the right or left iliac regions, most frequently in the left. Pain is often experienced in the hypogastric and sacral regions in the beginning of, or preceding, an attack of parametritis, and it is due to congestion of the endometrium and uterus, from which the disease is spreading to the looser cellular-tissue spaces in the ligaments. If, however, sacral pain persists throughout the course of the disease, or exists in that region chiefly, it indicates that the inflammation has become general or has invaded the utero-sacral ligaments. But it would not be correct to estimate the extent of the disease by the amount of pain complained of, for that symptom depends so largely upon the temperament of the patient and her station in life that it is not trustworthy. Some women suffer so much that they become inured to it or acquire the habit of suffering in silence; others, from temperament, do not actually experience pain; whilst others, again, from a love of hardihood, do not complain, although they may be enduring constant and severe pain. To one of these classes those cases must belong which are said to pass through an attack of parametritis without suffering. That cases do rarely present themselves, on account of mild but persistent symptoms, which are found on examination to contain a large pelvic exudation, I can attest; but I have so constantly found on careful questioning that the usual symptoms of pelvic inflammation were present at some time during the course of the existing illness that I cannot agree with the statement made by some authors that this disease may develop "without causing any particular disturbance" (Emmet).

As a rule, the bladder and rectum are reflexly affected, the former sometimes becoming very irritable, so that there often exists a constant desire to micturate. Constipation is the rule, though I have known a severe diarrhoea to accompany the disease, the result, I thought, of reflex irritation. The stomach also is often sympathetically affected, nausea, and sometimes vomiting of an aggravated form, being present.

With a subsidence of the chill the temperature begins to rise, and continues to increase, with evening exacerbations, until it reaches 102° to 103°, usually its highest point. It may, however, rise suddenly and reach as high as 104° or even 105°—rarely above the latter point. The pulse is usually full, and beats from 112 to 120 per minute, sometimes oftener.

In severe cases tympanites exists, with great tenderness in the hypogastric region; the thighs are also flexed upon the abdomen to protect the parts from pressure and to relieve the abdominal muscles from tension. But when these symptoms are marked it may be confidently concluded that the peritoneum is extensively involved.

Within a few days to a week from the initial symptoms the stage of effusion is probably completed or well advanced, when the symptoms are usually ameliorated. Pain is diminished and the temperature decreased, and if, happily, resolution begins, the patient may gradually recover during the succeeding two or three weeks. But, unfortunately, this very favorable course is not the usual one. Instead of it, the disease often advances to the third stage, that of suppuration. This stage is very commonly ushered in and manifested by rigors or chill, followed by a rise in temperature and an increase in the pulse-rate. There may now be daily afternoon exacerbations of temperature, followed by sweating, until the pus is disposed of, usually by evacuation.