A case of minimal deviation adenocarcinoma (MDA: adenoma malignum) of the uterine cervix associated with ovarian mucinous carcinoma is documented. Diagnosis was possible only retrospectively after surgery by histological examinations including immunohistochemistry. Three courses of chemotherapy, consisting of cisplatin, doxorubicin and ifosfamide, could eradicate the residual diseases of ovarian cancer from the peritoneal cavity, but was insufficiently effective against lymph node metastases of the cervical MDA. Subsequently, the disease flared-up retroperitoneally during the sixth course of treatment course, suggesting chemoresistance developed, and further chemotherapy using different regimens were not effective. Therapeutic intractability of MDA as well as the diagnostic difficulty was again emphasized.