Ovarian sex cord stromal tumor with annular tubules in a 7-year-old child: A case report.

A seven-year-old girl who presented with precocious puberty was diagnosed with an estrogen-secreting right ovarian tumor. Right salpingo-oophorectomy with staging was performed by gynecologic oncologists. Intraoperative frozen section reported sex cord stromal tumor. Histopathological report confirmed sex cord stromal tumor with annular tubules with brisk mitotic counts (17 per 10 high-power fields). The post-operative course was uneventful. She remained asymptomatic with normalisation of serum estradiol upon six-month follow-up.