case_images: PMC3784108_01
case_images: Transvaginal ultrasound indicating a large 10x8x7 cm3 sized cystic mass at the center of the pelvic cavity, with internal septation and no apparent solid portion.
case_images: ogs-56-50-g001.jpg
case_images: PMC3784108_01_ogs-56-50-g001.jpg
case_images: F1
case_images: Transvaginal ultrasound examination revealed no uterus and a large 10x8x7 cm3 sized well defined cystic mass located at the center of the pelvic cavity, with internal septation and no apparent solid portion (Fig. 1).
case_images: An abdominopelvic computed tomographic scan after enhancement shows a 10x8 cm sized cystic mass in the left ovary, with internal septation (arrow) and a solid portion (arrowhead), which is enhanced by contrast media.
case_images: ogs-56-50-g002.jpg
case_images: PMC3784108_01_ogs-56-50-g002.jpg
case_images: F2
case_images: There was no lymph node enlargement or ascites, but the liver showed signs of cirrhosis (Fig. 2).
case_images: (A) Histological specimen shows large aggregates of tumor cells with abundant eosinophilic to clear cytoplasm, with a granular appearance and vacuolization (H&E, x200). (B) Immunohistochemical staining shows the tumor cells exhibiting a diffuse positive reaction for inhibin (brown) (x200). (C) Immunohistochemical staining shows a diffuse positive reaction of the tumor cells for calretinin (dark red) (x100).
case_images: ogs-56-50-g003.jpg
case_images: PMC3784108_01_ogs-56-50-g003.jpg
case_images: F3
case_images: Microscopic findings exhibited diffuse tumor cells with abundant eosinophilic granular cytoplasm and vacuolization, with no signs of nuclear atypicality and a mitotic count of 5 per 10 HPF (Fig. 3A). Immunohistochemistry revealed a positive reaction to inhibin, calretinin, and vimentin, a moderately positive reaction to CD99, and a negative reaction to pan-CK, S-100, placenta-like alkaline phosphatase, and chromogranin (Fig. 3B, C).