Fig. 1

Twenty-eight years old female patient presented with abdominal pain. Imaging findings: grey scale B-mode ultrasonography (a): normal sized liver with an ill-defined hyperechoic focal lesion seen in segment IV and VIII measuring 9.2 × 8.6 cm with 1.9 cm depth from the skin. Color-coded shear wave sono-elastography: the lesion showed faint blue color (b, c, d), while the liver parenchyma showed dark blue color (e, f, g). Shear wave sono-elastography stiffness value of the focal lesion: E1 = 9.55 kPa (b), E2 = 8.31 kPa (c), and E3 = 9.26 kPa (d). Calculated average stiffness value of the lesion = 9.04 kPa. Shear wave sono-elastography stiffness values of the parenchyma: E1 = 6.86 kPa (e), E2 = 5.99 kPa (f), E3 = 5.75 kPa (g).Calculated average stiffness value of the parenchyma = 6.2 kPa. • Lesion/parenchyma stiffness ratio = 1.57. Axial contrast enhanced triphasic CT study (arterial (h), portal (i), and delayed (j) phases): average sized liver with a large well defined focal lesion seen in segment IV and VIII. It shows peripheral nodular enhancement in the arterial phase, progressive filling in the portal phase with persistent enhancement is seen in the delayed phase (close iris pattern). Diagnosis: Hemangioma