Abstract

Crossed Cerebellar Diaschisis (CCD) and Ipsilateral Thalamic Diaschisis (ITD) are the hypoperfusion/hypometabolism of contralateral cerebellum and ipsilateral thalamus due to the distant cortical or subcortical lesions. In this case, we utilized the Single Photon Emission Computed Tomography (SPECT) to identify the two aforementioned diseases. From the SPECT images, the cerebral blood flow (rCBF) in the right hemisphere of cerebrum was more than the left one and the rCBF of left (ipsilateral) thalamus decreased as well. However, the hypoperfusion of right-sided (contralateral) thalamus exists in the images simultaneously. To the best of our knowledge, it is the first case that shows CCD with ipsilateral and contralateral diaschisis observed from SPECT in a stroke case. In addition, there are more evidence manifesting the difference between ipsilateral and contralateral thalamic diaschisis.