Imaging findings of splenic hamartoma

Figure 1 CT scans of splenic hamartoma. A: Homogeneous mild hypodensity lesion within the spleen found by unenhanced CT scan, B: Mild-homogeneous enhancement of the mass found by enhanced CT scan on hepatic artery phase, C: Isodense tumor with normal spleen on delayed enhanced CT images.

Figure 2 MR images of splenic hamartoma. A: Round-like mass with isointensity relative to the spleen on MR T₁-weighted images, B: Mild-hypointense mass on MR T₂-weighted images, C: Diffuse heterogeneous enhancement of mass by enhanced MR scan on early portal venous phase.

Figure 3 Obviously hyperintense tumor with normal spleen on delayed enhanced MR images.

Figure 4 Red marrow tissue and some blood sinusoid structures with lymphocytes and macrophages in hamartoma. Fibrosis was remarkable. (HE, original magnification × 100).