Case Reports in Gastrointestinal Medicine / 2012 / Article / Fig 4

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.
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(a)
480135.fig.004b
(b)
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(c)
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(d)