PMC7168706_01
Lobulated mass of the ovary with yellow-orange cut surface.
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fig1
The cut section of the specimen showed a lobulated and yellow-orange color (Figure 1).
A diffuse tumor cell proliferation with fibrous septa (hematoxylin eosin 40x).
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fig2
These cells were intermingled with large cells with vacuolated and pale cytoplasm (Figures 2 and 3).
Tumor cells were polygonal with granular eosinophilic cytoplasm. They were intermingled with some large pale and vacuolated cells (hematoxylin eosin 40x).
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fig3
These cells were intermingled with large cells with vacuolated and pale cytoplasm (Figures 2 and 3).
(a) Oil-red-O stain demonstrates numerous lipid droplets (40x); (b) positive staining of tumor cells for inhibin (400x); (c) positive staining of tumor cells for CD56 (400x); (d) positive staining of tumor cells for Melan A (400x).
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fig4
The staining of Oil-red-O has revealed numerous intracellular lipid droplets (Figure 4(a)). Immunohistochemical study showed strong and diffuse positivity of tumor cells for inhibin, CD56, calretinin, and Melan A (Figures 4(b)-4(d)).