Unexpected Radiologic Findings for a Casting Type of Radiolucent Colorectal Foreign Body Composed of Polyurethane Foam.

Radiologic diagnosis of colorectal foreign bodies is usually not very difficult, because inserted materials are often clearly visible on plain abdominal radiographs. However, when they are radiolucent, a plain abdominal radiograph has been reported to be useless. As radiolucent colorectal foreign bodies appear as radiolucent artificial contours or air-trapped materials in the pelvis, almost always the diagnosis itself can be made by careful evaluation of plain abdominal radiographs.

Small bowel intussusception caused by intestinal angiosarcomatosis: usefulness of MR enteroclysis with infusion of water through a nasojejunal catheter.

We report a case of intestinal angiosarcomatosis manifesting as jejuno-jejunal intussusception.