Inflammatory pseudotumor of the bladder in a child

Inflammatory pseudotumors of the bladder are rare in children. We report here the case of an 11-year-old child who presented with lower urinary tract symptoms. Ultrasonography and computed tomography imaging of abdomen showed an intravesical mass/thickening arising from the right lateral wall. Biopsy of the lesion revealed a lesion that showed uniform elongated spindle cells within a background of myxoid stroma. The cells were loosely packed from a smooth muscle lesion, which had a densely packed cellular stroma. The child improved with a course of antibiotics and a repeat imaging showed disappearance of the lesion.