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Following the intravenous administration of Ioflupane I-123 (DaTscan), the obtained SPECT images demonstrate asymmetric tracer activity in the corpus striatum. Specifically, activity in the region of the putamen of the right hemisphere is absent with respect to the contralateral side. Activity is still visible in the caudate nuclei of both hemispheres resulting in a characteristic comma or crescent shape in the left and a roughly circular or oval focus in the right. The background uptake is within accepted limits.