PMC7732967_01
Right sex cord tumor with annular tubules predominantly cystic (A,B) At higher power, the tumor has many concentric tubules dispersed in the ovarian stroma. (C,D,E) the tubules have prominent basement-type material in the center with antipodal arrangement or the nuclei.
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The nuclei were uniformly rounded with inconspicuous nucleoli (Figs. 1, 2).
Left ovarian cortex with confluent annular tubules encircle hyalinized center (A,B) nuclei palisade at periphery of nest and around hyaline material. The tumour cells are columnar and have clear cytoplasm and hypercrhromatic nuclei with small nucleoli.
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The nuclei were uniformly rounded with inconspicuous nucleoli (Figs. 1, 2).
(A) Inhibin is typically positive in sex cord tumour with annular tubules. (B) The cell tumors show characteristically strong expression of Calretinin.
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Inmunohistochemical staining for inhibin and calretinin was strongly positive in the tumor cells, cytoplasm, and nuclei (Fig. 3).