Figure 2
From: Hemangiopericytoma of the spleen: Unusual presentation as multiple abscess
(a) shows dilated, sinuous vascular channels surrounded by oval to spindle tumor cells, having scanty cytoplasm and hyperchromatic nuclei, mitotic figures occasional present (Hematoxylin & Eosin ×200); (b) Reticulin stain (×200) shows intricate reticulum laid down around tumor cells and dilated vascular channels; (c) & (d) shows fibrous capsule of the tumor along with areas of necrosis (Hematoxylin & Eosin ×50).