[Risk of systematic celioscopic treatment of ovarian diseases. 2 cases].

We report 2 cases of malignant ovarian tumours. These tumours had been missed at a first laparoscopic examination, and a second examination detected the presence of cancer cells disseminated in the peritoneum and the abdominal wall. The risk of propagation of an overlooked cancer makes it necessary to carry out a preoperative thorough evaluation based on clinical and ultrasonographic data before any attempt at laparoscopic surgery. If a laparoscopic treatment is decided, it must be performed under strict conditions and include meticulous exploration of the abdominal cavity, systematic peritoneal cytology, needle cytology of the cyst, emptying of the cyst in a water-tight manner, extemporaneous biopsy in case of doubt, peritoneal cleansing, and extraction of the cyst or the ovary in a bag. If malignancy is suspected, laparotomy must be performed immediately.