PMC3687716_01
Microscopic findings of uterine mass specimen showing (a) cartilaginous foci (HES x10), with (b) presence of glandular formations (HES x20), and (c) ovoid cells involved in a fibrillar background (HES x40).
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fig1
The immature component was dedifferentiated cells around epithelial tubes with the presence of mitoses (Figure 1). 
Histology of biopsy specimen revealing (a) diffuse sheets of neoplastic cells arranged in pseudorosettes and glandular formations (HES x20), with (b) cytonuclear atypia and high mitotic index (HES x40).
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fig2
Histological examination of the vaginal biopsy revealed a malignant embryonic proliferation with neuroepithelial component and mesenchymal areas, exhibiting high mitotic activity (Figure 2).
Immunohistochemical analysis showing positive staining for (a) NSE and (b) GFAP, with focal positive staining for (c) S100 protein.
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fig3
Also, there was positive focal staining of tumor cells for S100 protein (Figure 3).