Basket pattern blood flow signals discovered in a case of splenic hamartoma by power Doppler ultrasonography

Figure 1 Splenic hamartoma on ultrasonogram. A: A homogeneous hamartoma on gray-scale sonogram with evidence of cystic changes in the mass (arrows); B: multiple circular blood flow signals within the mass on power Doppler sonogram (basket pattern); C: arterial and venous flow in the mass on duplex Doppler sonogram.

Figure 2 A low-density mass in the spleen shown by plane CT scan (arrows).

Figure 3 Isointense mass on standard T1-weighed MRI mass on (A) and mild hyperintense T2-weighed MRI (arrows B).

Figure 4 Dilated vessels (arrowheads) and border of the mass and normal splenic parenchyma (arrows) (A) and a mass consisting of red pulp (B) (HE×100).