Figure 4e. Hemangioma. (a) US scan shows a heterogeneous, hypoechoic mass. (b, c) CT scans obtained before (b) and after (c) injection of contrast material show a well-circumscribed soft-tissue mass with a punctate calcification (arrow in b) and peripheral nodular enhancement (arrow in c). (d) FLASH two-dimensional gradient-echo T1-weighted MR image (690/12) obtained immediately after intravenous injection of gadolinium contrast material shows enhancement similar to that in the CT scan (c). (e) Corresponding MR image obtained 7 minutes later shows centripetal incomplete filling of the lesion. (f) Photograph of the gross specimen shows peripheral vascular lakes (arrows) and central fibrosis (*). (g) Photomicrograph (original magnification, x4; hematoxylin-eosin stain) shows hemangiomatous proliferation dissected by a hematoma (*) and surrounded by a thick fibrotic wall (arrow). Arrowhead = residual peripheral adrenal elements.