INFLAMMATORY PSEUDOTUMORS OF THE SPLEEN - CT AND MRI FINDINGS

Objective: Our goal was to elucidate the CT and MRI findings of inflam matory pseudotumors of the spleen. Methods: The CT and MRI findings of three patients with inflammatory pseudotumors of the spleen were revi ewed and compared with the pathologic findings. Results: On the early phase of CT, the masses were hypodense to the normal spleen, and on th e delayed phase, they demonstrated delayed enhancement, On T1-weighted MR images, the masses were isointense to the normal spleen, and on T2 -weighted images, the masses had heterogeneous low signal intensities. After administration of Gd-DTPA, the masses showed delayed enhance me nt, Conclusion: Inflammatory pseudotumors of the spleen were character ized by low signal intensity on T2-weighted MR images and delayed enha ncement after contrast material administration on CT and MRI. The fibr ous stroma may contribute to these unusual findings.