Fig. 4From: Contrast-enhanced ultrasound of the spleen: an introduction and pictorial essayHypoechoic heterogenous focal splenic mass (arrows) on B mode (a) is biopsy-proven diffuse B cell lymphoma. It has homogenous enhancement at 10 s (b), begins to washout by 30 s (c) and has clearly washed out by 60 s (d)Back to article page