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Results of a prospective study with comparison of clinical, endosonographic, computed tomography, magnetic resonance imaging and pathologic staging of advanced gynecologic carcinoma and recurrence.

Between January 1988 and April 1991, 57 patients with advanced gynecologic carcinoma were preoperatively evaluated by gynecologic examination and endosonography (ESG) using general anesthesia. Abdominopelvic computed tomography (CT) was performed in 49 patients and magnetic resonance imaging (MRI) in 21 patients. There were 34 primary tumors and 23 instances of recurrence. Causes of gynecologic carcinoma were 38 carcinomas of the cervix uteri (26 primary and 12 recurrences), eight carcinomas of the ovary (four primary and four recurrences), three recurrences of carcinoma of the endometrium, five sarcomas of the uterus (one primary and four recurrences) and three primary carcinomas of the vagina. All of the patients were operated upon. This perspective study compares the data from clinical and imaging examinations to the data obtained from histologic examination of surgical sections. According to anterior or posterior tumor extension, the accuracy of clinical evaluation and preoperative imaging were studied for the posterior vesical wall and the vesicovaginal septum and the anterior rectal wall and the rectovaginal septum. Histologic examination revealed vesical involvement in 17 patients and of the involvement of vesicovaginal septum in 21 patients. The accuracy of the clinical examination, ESG, cystoscopy, CT and MRI was 83, 88, 87, 75 and 81 percent, respectively, for vesical extension. Cystoscopy was not taken into account for evaluation of extension to the vesicovaginal septum--accuracy was 80, 90, 67 and 86 percent for clinical examination, ESG, CT and MRI. Histologic examination showed involvement in the rectum in 14 patients and involvement in the rectovaginal septum in 19 patients. Rectoscopy was performed 13 times. The accuracy of clinical examination, ESG, CT and MRI was 91, 98, 89 and 71 percent, respectively, for extension to the anterior rectal wall. Rectoscopy was not taken into account for evaluation of extension to the rectovaginal septum--accuracy was 80, 96, 75 and 57 percent for clinical examination, ESG, CT and MRI. Endosonography would seem to be useful to complete examinations for regional extension of advanced gynecologic carcinomas. Its accuracy is superior to that of other examinations. Because it is performed using general anesthesia, there is no discomfort for the patient during this low cost procedure.