Malignant neoplasm of ovary (C56)

• ICD-10 Index

  • Neoplasms (C00–D48)

    • Malignant neoplasms of female genital organs (C51-C58)

      • Malignant neoplasm of ovary (C56)

        • C56 - Malignant neoplasm of ovary NON-BILLABLE CODE
        • C56.1 - Malignant neoplasm of right ovary BILLABLE CODE
        • C56.2 - Malignant neoplasm of left ovary BILLABLE CODE
        • C56.3 - Malignant neoplasm of bilateral ovaries BILLABLE CODE
        • C56.9 - Malignant neoplasm of unspecified ovary BILLABLE CODE

Clinical Information for Malignant neoplasm of ovary (C56)

Choriocarcinoma - A malignant metastatic form of trophoblastic tumors. Unlike the HYDATIDIFORM MOLE, choriocarcinoma contains no CHORIONIC VILLI but rather sheets of undifferentiated cytotrophoblasts and syncytiotrophoblasts (TROPHOBLASTS). It is characterized by the large amounts of CHORIONIC GONADOTROPIN produced. Tissue origins can be determined by DNA analyses: placental (fetal) origin or non-placental origin (CHORIOCARCINOMA, NON-GESTATIONAL).

Choriocarcinoma, Non-gestational - A highly malignant CHORIOCARCINOMA derived from the non-placental origin such as the totipotent cells in the TESTIS, the OVARY, and the PINEAL GLAND. It produces high levels of CHORIONIC GONADOTROPIN and can metastasize widely through the bloodstream to the lungs, brain, liver, bone, and other viscera by the time of diagnosis.

Hereditary Breast and Ovarian Cancer Syndrome - Autosomal dominant HEREDITARY CANCER SYNDROME in which a mutation most often in either BRCA1 or BRCA2 is associated with a significantly increased risk for breast and ovarian cancers.

Neoplastic Syndromes, Hereditary - The condition of a pattern of malignancies within a family, but not every individual's necessarily having the same neoplasm. Characteristically the tumor tends to occur at an earlier than average age, individuals may have more than one primary tumor, the tumors may be multicentric, usually more than 25 percent of the individuals in direct lineal descent from the proband are affected, and the cancer predisposition in these families behaves as an autosomal dominant trait with about 60 percent penetrance.

Instructional Notations

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