PMC8138257_01
a An illustration of the supernumerary motor phantom limb (SPL) drawn by the patient himself. b An illustration of the SPL drawn by the therapist according to the patient's statement.
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F1
On day 57, the patient reported noticing for the first time an SPL involving his left arm, originating at the level of the elbow during rehabilitation (Fig. 1).
a Fluid-attenuated inversion recovery MR images. The lesions were observed in the right temporal lobe subcortex, subfrontal cortex, putamen, internal capsule, and thalamus. b Single-photon emission computed tomography images were analyzed using the voxel-based stereotaxic extraction estimation software program. Hypoperfusion is displayed as extent%: (1) superior, middle and inferior temporal gyrus, 96%; (2) inferior parietal lobule, 97.9%; (3) inferior frontal gyrus, 95.9%; (4) Brodmann area 6, 55.7%; (5) medial frontal gyrus, 61.8%; (6) lenticular nucleus, 97.4%; and (7) thalamus, 70.3%.
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F2
On day 28, brain magnetic resonance imaging (MRI) demonstrated a hematoma of irregular shape with a maximum diameter of 9 cm in the right temporal lobe subcortex, subfrontal cortex, putamen, internal capsule, and thalamus (Fig. 2a). The easy Z-score imaging system and voxel-based stereotaxic extraction estimation analyses of the single-photon emission computed tomography images displayed more widespread hypoperfusion in the right hemisphere than had been noted on MRI (Fig. 2b).