Figure 8
From: Early-onset dementias: diagnostic and etiological considerations
Structural and functional neuroimages of patients presenting with early onset dementia associated with atypical parkinsonism. (a) Axial 99mTc-ethylcysteinate dimer (99mTc-ECD) perfusion single photon emission computed tomography (SPECT) and T1 magnetic resonance imaging (MRI) of a patient with pathologically confirmed corticobasal degeneration. (b) Axial T2 MRI of a patient with Wilson's disease demonstrating the face of the giant panda sign. (c) Axial 99mTc-ECD perfusion SPECT of a patient with early-onset Lewy body spectrum disorder demonstrating biparietal hypoperfusion extending into lateral occipital areas. (d) Sagittal T1 MRI of a patient with progressive supranuclear palsy demonstrating the humming bird sign.