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Figure 3 | Journal of Medical Case Reports

Figure 3

From: Perivascular epitheloid cell tumour (PEComa) of the retroperitoneum – a rare tumor with uncertain malignant behaviour: a case report

Figure 3

Histological Findings. A: The perivascular epitheloid cells proliferate haphazardly around slit-like vascular channels, with aggregation of lymphoid cells. B: Tumour cells with expression of the HMB45-antigen. (immunohistochemistry with the avidin-biotin-peroxidase-complex method; counterstain haematoxylin; original magnification × 100). C: Focal coagulative necrosis of tumour cells (H&E; original magnification × 200).

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Journal of Medical Case Reports

ISSN: 1752-1947