Abstract
We present the case of a 3-year-old child with esophageal foreign bodies. In the preoperative X-rays we mistook a 5 yen coin overlapping a 1 yen coin for only a 5 yen coin. One yen coins made of 100% aluminum can be easily missed on X-ray images. In the diagnosis of an esophageal foreign body by X-ray therefore, we must bear in mind the possibility of the presence of a radiolucent foreign body and radioopaque foreign body at the same time. Furthermore, it is also important to obtain lateral-view X-rays in addition to posteroanterior-view X-rays, in order to obtain optimal information from X-ray images.
