Inflammatory pseudotumor of the spleen: ultrasound and computed tomographic findings.

Inflammatory pseudotumor of the spleen is an extremely rare benign lesion characterized by a wide spectrum of nonspecific inflammatory and reparative changes. The ultrasound and computed tomographic (CT) findings of inflammatory pseudotumor affecting the spleen in an asymptomatic patient are reported. The CT scanning revealed a partially calcified mass showing a nonhomogeneous enhancement after contrast injection. After 3 min of bolus administration, an unenhanced central area, which corresponds to a focal area of fibrosis, was demonstrated.