Preschooler with abdominal pain

CT of Henoch-Schonlein purpura
Axial (above), coronal (below) and sagittal (right) CT with contrast of the abdomen shows a thickened mildly enhancing loop of proximal jejunum in the anterior midline of the abdomen. There is also a small amount of ascites present

The diagnosis was Henoch-Schonlein purpura affecting the small bowel.