Balon H R, Meier D A
Department of Nuclear Medicine, William Beaumont Hospital, Royal Oak, Michigan 48072.
Clin Nucl Med. 1990 Nov;15(11):806-8. doi: 10.1097/00003072-199011000-00007.
A pulmonary perfusion defect was caused by an extremely large anterior mediastinal mass subsequently proved by I-131 imaging to be an intrathoracic extension of a cervical goiter. Substernal goiter is not known to be reported previously as one of the causes of a perfusion defect in lung scanning.