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Fig. 4 | Diagnostic Pathology

Fig. 4

From: Rapid growth of mitotically active cellular fibroma of the ovary: a case report and review of the literature

Fig. 4

Histopathological findings of the right ovarian tumor. a The capsule of the tumor was intact without necrosis and hemorrhage; (b) dense cellular proliferations of spindle fibroblast-like cells, arranged in a fascicular structure with ovoid to spindle-shaped nuclei and a scant cytoplasm, and (c) tumor cell proliferations in a trabecular pattern with a collagen band distributed around the stroma; and (d) absence of significant cytological atypia. The mitotic activity index was estimated at >15 mitotic figures per 10 high-power fields (hematoxylin and eosin staining; original magnification [a] × 20, [b, c] × 100, and [d] × 400)

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