[A case of ovarian cancer in which a remarkable effect was seen with low-dose CDDP intratumoral injection of CPT-11].

We treated an ovarian cancer patient in whom low-dose CDDP intratumoral injection with CPT-11 therapy was very effective. The patient was a 63-year-old woman. She showed symptoms of peritonitis. Carcinomatous peritonitis was suspected on abdominal CT scan and tumor markers were at high levels (CA125 10,827 U/ml, SLX 82 U/ml). At laparotomy, massive ascites (3,000 ml), omental cakes and disseminated peritoneal tumors were revealed. Her uterus and adnexa were not enlarged. The omental tumor and ovaries were biopsied and revealed serous adenocarcinoma. The patient was treated with combined chemotherapy of CDDP and CPT-11. CDDP (20 mg/day) was administered by intraperitoneally for 3 days, and CDDP (10 mg/day) was administered by intratumoral injection (percutaneous for omental tumor) for 5 days. CPT-11 (40 mg/day) was administered twice a week. As a result, marked shrinkage of the tumors was confirmed. This low-dose CDDP intratumoral injection with CPT-11 may be effective for such omental tumors with carcinomatous peritonitis.