Sertoliform Endometrioid Carcinoma of the Ovary in a Young Woman: Diagnostic Challenges for the Pathologist

Introduction Sertoliform endometrioid carcinoma (SEC) is a rare variant of ovarian endometrioid carcinoma commonly affecting older women. The morphology of this tumour closely resembles that of Sertoli and Sertoli–Leydig cell tumours. Microscopically, the tumour is composed of anastomosing cords, nests, trabeculae and tubules lined by pseudostratified columnar epithelium with elongated nuclei. We present a case of Sertoliform endometrioid carcinoma in a 24-year-old woman.