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Fig. 2 | Gynecological Surgery

Fig. 2

From: Primary retroperitoneal cystic mucinous borderline tumour mimicking an ovarian neoplasm: a case report and literature review

Fig. 2

Microscopy: cyst lining comprising intestinal-type columnar mucous-secreting epithelium. The tumour displays a complex glandular architecture without stromal invasion (a–d). Stratification of the epithelium with a thickness of two to three cell layers (c, d). High-power view showing mild to moderate nuclear atypia with mitoses (d). Immunohistochemistry: the tumour exhibits diffuse strong expression of CK 7 (e) and patchy strong expression of CK 20 (f)

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