Fibrotic cyst wall showing partial lining by columnar non-secretory endometrial cells with related endometrial stroma and interstitial hemorrhage. Wall shows few islands of irregular and branching endometrial glands with separating stroma. No evidence of specific granulomas. No evidence of atypia or malignancy.
Large left ovarian cyst with chocolate material.
An open ovarian cyst measuring 9.5 x 7.5 x 1.3 cm, exhibiting a smooth outer surface.
Lt. ovarian cyst, excision biopsy: