We report a case of left mucinous borderline ovarian tumor and right ovarian and tubal absence. A 36-year-old patient felt discomfort in her lower abdomen and visited our hospital for further examination. Magnetic resonance imaging (MRI) revealed an approximately 16-cm multilocular tumor. The tumor of the right ovary was extracted via laparoscopically assisted cystectomy. Intraoperatively, we noticed the absent left adnexa. Pathological examination revealed that the right ovarian tumor was a mucinous borderline tumor. During the follow-up, no postoperative recurrence was observed. Two causes have been identified for congenital absence of unilateral ovary and fallopian tube, namely congenital developmental defect and torsion of the adnexa. The present case likely resulted from an asymptomatic torsion because of the absence of other genitourinary anomalies and the strong adherence of the left fallopian tube angle to the sigmoid colon despite that the patient had no surgical history.

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I n spite of many advanιes in medicine , anesthetic technique and surgical managements, p 비 monary problems are the most frequent postoperative complications, particularl y after abdominal surgery.As postoperative pulmonary complications, atelectasis, pleural effusion , pneumonia, chronic bronchitis and lung abscess can be occured. The results were as foll ows:1. 70 cases out of total 2006 cases (3 .5 %) developed flostoperative chest complications, 51 cases (5.5 %) in male.19 cases (1 .8%) in female.2. The complication rate was increased according to the increase of age. The incidence of the postoperative complications over 40 years of age was higher than the overall average complication rate.3. The most common postoperative pulmonary complication was pleural effusion , next pneumonia, atelectasis and pulmonary edema respectively. 4. The complication rate of the group of upper abdominal surgery is much higher than the group of lower abdom inal surgery. 5. Complication rate was increased according to increase of the duration of operation.6. There were significant correlations between the operation site and side of the complicated hemithorax .