case_images: PMC4189054_01
case_images: Right ovarian solid mass.
case_images: gr1.jpg
case_images: PMC4189054_01_gr1.jpg
case_images: fig0005
case_images: Transvaginal ultrasonography revealed a right adnexial mass 38.9 mm x 36 mm in diameter that showed a homogeneously isoechoic pattern (Fig. 1).
case_images: Fascicles of smooth muscle cells (H&E, x100).
case_images: gr2.jpg
case_images: PMC4189054_01_gr2.jpg
case_images: fig0010
case_images: Pathologic examination revealed a tumour composed of interlacing bundles of fusiform cells, resembling a leiomyoma (Fig. 2).
case_images: The smooth muscle cells are uniformly spindle shaped or elongated with blunt-ended or cigar-shaped nuclei. Mitotic activity is absent or very low, and cellular and nuclear pleomorphisms are absent.
case_images: gr3.jpg
case_images: PMC4189054_01_gr3.jpg
case_images: fig0015
case_images: There was no atypia or pleomorphism, and mitotic count and necrosis were absent (Fig. 3).
case_images: Marked immunoreactivity for smooth muscle actin (x200).
case_images: gr4.jpg
case_images: PMC4189054_01_gr4.jpg
case_images: fig0020
case_images: Immunohistochemical staining showed strong and diffuse positive staining for smooth muscle actin (SMA) (Fig. 4).
case_images: Very low Ki-67 proliferation index (x400).
case_images: gr5.jpg
case_images: PMC4189054_01_gr5.jpg
case_images: fig0025
case_images: Ki-67 proliferation index was low (Fig. 5).