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. 2015 Mar-Apr;26(2):70–81. doi: 10.5830/CVJA-2015-017

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Fig. 3. — Histopathology of HIV aneurysmal disease: active vasa vasorum inflammation (A), and luminal narrowing (*) (haematoxylin and eosin, 240×); vasa vasorum fibromuscular hyperplasia (B) (haematoxylin and eosin, 240×); peri-adventitial slit-like vascular channels with inflammatory cells (C); and haemosiderin pigment (arrows) (haematoxylin and eosin, 240×). Vessel wall (D) with fragmentation of the internal elastic lamina (arrows) (* = intima) (elastic van Gieson, 240×) and medial calcification (E) (von Kossa, 240×).