Figure 3
From: Thrombosed traumatic aneurysm of the occipital artery: a case report and review of the literature
Histopathologic examination shows a true aneurysm. Histopathologic examination demonstrates a true aneurysm which includes all three layers of the arterial wall: the intima, media and adventitia. (A) and (C) show the artery under 20× magnification with intraluminal thrombus (*) and thickened intima (#). Residual smooth muscle fibers of the media are also seen (arrow head) in (A). (C) shows a portion of the arterial wall dilated by the aneurysm. (B) and (D) are 100× magnifications of the margin of (A) and (B.)