Pelvic mass biopsy by operative transvaginal sonography (OTVS).

Operative transvaginal sonography (OTVS) is widely used in clinical Obstetrics and Gynecology, however it has no definite role in Gynecologic Oncology. Between January 1990 and February 1991, we performed 18 ultrasonically-guided biopsies on suspected pelvic malignancies. The aim of our work was to assess to efficiency of OTVS in imaging, evaluating and biopsying pelvic masses. Fifteen patients had already been treated for gynecological malignancy, 3 were at their first evaluation. We used a Bruel KJAER mechanical transducer (7.5 MHz, type 8538). Biopsy needles were Menghini type (Surecut) 23 cm long, 16 or 18 G. The paper describes the results of the 18 biopsies. One false negative histological evaluation and one inadequate sample were obtained. No complications were observed. From our preliminary data, ultrasound-guided transvaginal scans may be usefully used in imaging and biopsying pelvic masses. It is a safe technique, easy to perform and well accepted by the patients.