PMC6083536_01
Heterologous elements on frozen section showing solely mucinous epithelium with angulated glands concerning invasion but without a definitive desmoplastic response; H&E at 200x.
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fig1
A few of the glands were angulated and concerning invasion but lacked a definitive desmoplastic response (Figure 1).
Areas of trabecular growth composed of Sertoli cells with ovoid nuclei, punctate nucleoli, and nuclear molding; H&E at 400x.
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fig2
The predominant cell population was characterized by ovoid nuclei lacking appreciable grooves, lightly basophilic cytoplasm, and punctate nucleoli consistent with Sertoli cells (Figure 2).
Retiform pattern with "staghorn" slit-like tubules; H&E at 100x.
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fig3
A distinct retiform pattern was also identified consisting of irregular networks of elongated and slit-like tubules with a "staghorn" appearance (Figure 3).
Nests of Leydig cells with abundant eosinophilic cytoplasm and round nuclei; H&E at 400x.
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fig4
A second population of Leydig cells with round nuclei and abundant eosinophilic cytoplasm was interspersed throughout the neoplasm (Figure 4).