Case Report
Angiosarcoma of Small Bowel Presenting with Obstruction: Novel Observations on a Rare Diagnostic Entity with Unique Clinical Presentation
Figure 4
(a) Hemosiderin deposition in tumor; (b) anastomosing vascular channels; (c) frequent atypical mitotic figures and intra-cytoplasmic “vascular channels;” (d) dense collagen deposition in basement membrane type pattern.