Fig. 1
From: Retiform hemangioendothelioma: a case series and review of the literature
Case 1. a Computed tomography scan showing multiple heterogeneously enhancing soft tissue masses in the mediastinum, one in the right side is seen in the image (star). b Hematoxylin & Eosin stained sections of tumor showing characteristic arborizing retiform architecture of the vascular channels, appreciable on low power (20×). c The vascular channels are lined by endothelial cells with prominent hobnailing of the uniform appearing nuclei. These endothelial cells are positive for immunohistochemistry stains d CD31 and e ERG