On brain perfusion SPECT, a primary brain lesion presents as a localized defect that corresponds to the mass lesion. (99m)Tc-HMPAO images generally show a focal defect in the region of abnormality, whether containing necrotic tissue, recurrent tumor, or both. Further characterization with MR imaging is needed to confirm the diagnosis, as demonstrated in this case report.
Keywords: HMPAO; SPECT; brain; meningioma.
© 2016 by the Society of Nuclear Medicine and Molecular Imaging, Inc.