[Abnormal lung uptake of 123I-BMIPP].

An eighty-one-year-old male patient with a feeling of chest pressure was admitted to our hospital for investigation of the heart. 201T1/123I-BMIPP dual scintigraphy was performed and multiple uptakes of 123I-BMIPP were detected in the lung, but not of 201T1. His chest X-ray and chest CT showed no abnormal lesions in the corresponding regions. There have been no reports that 123I-BMIPP accumulate in the lung. The possible cause of the lung uptake was embolism from aggregated 123I-BMIPP due to cold tempetatures.