Inflammatory pseudotumor of the spleen in a 6-year-old child: a clinicopathologic study.

Inflammatory pseudotumors of the spleen are extremely rare in children. To our knowledge, only 3 cases of splenic inflammatory pseudotumors have been reported. An inflammatory pseudotumor of the spleen was found incidentally during the workup of vesicoureteral reflux disease in a 6-year-old girl. The clinical, pathologic, immunophenotypic, and molecular features and the differential diagnostic features are discussed here. Splenic inflammatory pseudotumors, although rare, should be considered in the differential diagnosis of a mass lesion of the spleen in children.