A carcinoma that arises from the ovary and is characterized by the presence of large malignant cells exhibiting neuroendocrine differentiation. The prognosis is poor. The disease is MONDO_0003049 (ovarian large-cell neuroendocrine carcinoma). Also known as: large cell neuroendocrine carcinoma of ovary, large cell neuroendocrine carcinoma of the ovary, large-cell neuroendocrine carcinoma of ovary, large-cell neuroendocrine carcinoma of the ovary, non-small-cell type neuroendocrine carcinoma of ovary, non-small-cell type neuroendocrine carcinoma of the ovary, ovarian large cell NEC, ovarian large cell neuroendocrine carcinoma.