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Fig. 4 | Diagnostic Pathology

Fig. 4

From: Patient with composite haemangioendothelioma containing angiosarcoma-like areas in the setting of congenital lymphoedema mimicking Stewart-Treves syndrome: a case report

Fig. 4

Light microscopy of retiform hemangioendothelioma-like component of the composite hemangioendothelioma - dermal based vascular tumour with retiform arrangement resembling rete testis, which consisted of branching vascular channels lined with hobnail-shaped bland endothelial cells (a H&E staining, 200x). At some portions, papillary protrusions with hyalinised cores were found (b H&E staining, 200x). Immunohistochemistry showed diffuse CD31 positivity (c IHC, 200x), while CD34 was negative (not shown). Proliferation marker Ki-67 was low with positivity of isolated cells (d IHC, 200x)

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Diagnostic Pathology

ISSN: 1746-1596

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