Figure 10b. Hepatic angiomyolipoma. (a) Contrast-enhanced CT scan shows a well-circumscribed, heterogeneous tumor of the right lobe with foci of fat (arrow). (b) Photograph of the gross specimen shows that the tumor is large and lobulated with areas containing fat (arrow). (c) Photomicrograph (original magnification, x200; hematoxylin-eosin stain) shows proliferating smooth muscle (arrow), vessels, and adipose tissue (arrowheads).