Primary neuroendocrine tumors of ovary: A clinicopathological spectrum in a tertiary care hospital with review of literature.

Aim: Primary neuroendocrine tumors in the ovary are rare. These tumors arise from the neuroendocrine cell system of ovarian stroma and surface epithelium, and may also arise from teratoma. We present four primary ovarian neuroendocrine tumors and discuss clinical, histomorphological, and immunohistochemical findings.