Ovarian Tumor Cases Which Were Preoperatively Diagnosed as Benign but Postoperatively Confirmed as Borderline or Malignant After Laparoscopic Surgery, Tumors

This study retrospectively reviewed cases in our hospital that underwent surgery based on the preoperative diagnosis of benignancy but postoperatively proved to be borderline or malignant to evaluate clinical and histological factors as well as prognosis. Subjects and methods The study group was comprised of 1,322 women who underwent a laparoscopic procedure on the basis of a preoperative diagnosis of a benign ovarian tumor in our hospital between 1995 and 2011. The rate of borderline and malignant cases, histology, and postoperative treatment were investigated. Results Of the 1,322 cases, 15 (1.1%) were postoperatively diagnosed as a borderline malignancy with varied histological types and all had a good prognosis; four (0.3%) were postoperatively diagnosed as malignant with varied histological types among which two required emergency surgery. All four cases underwent additional surgery and chemotherapy with no recurrence to date. Discussion Some cases diagnosed preoperatively as benign proved postoperatively to be malignant. Appropriate postoperative treatment was effective in improving the prognosis. Particular attention should be paid to a possible occult malignancy that may manifest postoperatively, especially in cases of emergency surgery. We recommend preoperative MR imaging even for emergency cases to improve preoperative diagnosis.
Source: Gynecology and Minimally Invasive Therapy - Category: OBGYN Source Type: research