[Computer tomography in the search for iatrogenic foreign bodies].

CT enables the identification and localization of foreign bodies which cannot be visualised at all or only slightly so via conventional x-ray film, iatrogenic foreign bodies not recognisable by the usual methods were identified by us by means of CT in two cases direct and in one case indirect as a "soft part finding". Basing on these three cases the article discusses the validity of CT when searching for foreign bodies.