Late menstruation with an ovarian sclerosing stromal tumor: A case report

Figure 1 Preoperative magnetic resonance imaging showing a very large, rounded mass was observed in the pelvis, with clear borders and a visible periphery. A and B: Representative longitudinal sections; C: Transverse section.

Figure 2 Postoperative hematoxylin and eosin staining pathology findings consistent with ovarian sclerosing mesenchymal tumors. A: Magnification (100 ×); B: Magnification (200 ×); C: Magnification (400 ×).

Figure 3 Immunohistochemical staining of the pathological sections. A: Calretinin (+); B: Epithelial membrane antigen (-); C: Smooth muscle actin (partial +); D: Α-inhibin (+). Images were taken at magnification (100 ×).

Figure 4 Intraoperative section of the ovarian. A and B: Gross view of the ovarian mass, showing a huge solid mass, grayish white in color, textured, and hard and very rich in surface blood vessels; C: Section of the left ovarian mass.