Although in gynecologic and surgical literature and textbooks the varying clinical manifestations caused by dermoids are well known and frequently noted, it is only in rare instances that they are brought to the attention of the urologist. Such growths may at times, however, give rise to marked disturbance and involvement of the urinary tract, and it is to emphasize this fact that the following case histories are reported:
REPORT OF CASES
Case 1 (7888).
—Dermoid cyst of the vesicovaginal septum, causing ulceration of the bladder with profuse hematuria.
—A married woman, aged 25, entered the Peter Bent Brigham Hospital complaining of hematuria. She had had two children without any complications of delivery. Nine years before her entrance into the hospital, there had occurred occasional attacks of urgent urination. About one year previously, these attacks had become more severe, and at this time undue frequency of urination also appeared. There