RT Journal Article SR Electronic T1 Case Report: Extra-Pulmonary Accumulation of Xenon-133 Gas JF Journal of Nuclear Medicine Technology JO J. Nucl. Med. Technol. FD Society of Nuclear Medicine SP 158 OP 159 VO 8 IS 3 A1 Kemper, Keith W. YR 1980 UL http://tech.snmjournals.org/content/8/3/158.abstract AB Ventilation scanning using xenon-133 gas is a common nuclear medicine procedure used to diagnose pulmonary problems. Findings of V/Q match or mismatch and trapping are well documented for various conditions. The following case is presented because of the very unusual appearance manifested during the wash-out phase.