RT Journal Article SR Electronic T1 Mediastinal masses in nuclear medicine studies: A diagnostic algorithm. JF Journal of Nuclear Medicine Technology JO J. Nucl. Med. Technol. FD Society of Nuclear Medicine SP jnmt.116.176461 DO 10.2967/jnmt.116.176461 A1 Feraco, Dana A1 Al-faham, Zaid A1 roumayah, yezzin A1 Jolepalem, Prashant YR 2016 UL http://tech.snmjournals.org/content/early/2016/06/29/jnmt.116.176461.abstract AB There are multiple reasons of an anterior mediastinal mass. In this case, we discuss possible etiologies offer an algorithm to narrow the differential diagnosis. When the mass is unable to be diagnosed radiographically, the next step in imaging is a physiologic assessment with radionuclide modalities.