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Focal Pulmonary Uptake on 99mTc-Sestamibi Parathyroid Scintigraphy Due to Iatrogenic Microembolism
Ying Kou1, Guohua Shen, Xiaohong Ou
1From the Department of Nuclear Medicine, West China Hospital of Sichuan University, Chengdu, Sichuan, People's Republic of China.
Abstract:
A middle-aged woman underwent Tc-sestamibi parathyroid scintigraphy because of parathyroid disease, and a focal pulmonary uptake of Tc-sestamibi was incidentally found on both planar and SPECT/CT images without corresponding pulmonary abnormality on the CT images. After 10 days, a subsequent parathyroid scintigraphy revealed no pulmonary accumulation. Therefore, the pulmonary intense Tc-sestamibi focus that once appeared in the first scan might be an artifact of iatrogenic microembolism from injection site.
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