case_images: PMC11236749_01
case_images: Panels (A,B) depict T1-weighted imaging (T1WI) and T2-weighted imaging (T2WI) of the thoracic vertebrae in the sagittal plane, revealing no significant abnormalities. Panel (C) provides a detailed magnification of the T10 to T12 segment, showcasing a faint, slender, longitudinally aligned high signal within the posterior compartment of the spinal cord, this phenomenon is recognized as a truncation artifact.
case_images: fneur-15-1416557-g002.jpg
case_images: PMC11236749_01_fneur-15-1416557-g002.jpg
case_images: fig2
case_images: The T1-weighted imaging (T1WI) sequences (Figure 2A) and sagittal T2-weighted imaging (T2WI) sequences (Figure 2B) demonstrated no significant abnormalities within the thoracic spinal cord. Notably, the subtle, linear, longitudinally oriented hypersignal observed in the posterior spinal area at the T10-T12 level corresponds to a truncation artifact (Figure 2C).
case_images: (A) On the T2-weighted imaging (T2WI) sequence of the transverse section, small spot-like signals were detected in the posterior and lateral funiculus of the spinal cord at the T10 level, with slightly more significant presence on the left side. (B) Following gadolinium contrast enhancement scanning on the T1-weighted imaging (T1WI), a "reverse V-shaped" high signal was evident.
case_images: fneur-15-1416557-g003.jpg
case_images: PMC11236749_01_fneur-15-1416557-g003.jpg
case_images: fig3
case_images: Within the T10 horizontal transverse section, T2WI sequence images illustrated small focal abnormal signals localized to the posterior and lateral aspects of the spinal cord (Figure 3A). T1WI scanning at this level revealed a prominent "inverted V" pattern with high signal intensity (Figure 3B). This distinctive imaging characteristic, coupled with the patient's signs of neurological impairment, corroborates the diagnosis of subacute combined degeneration of the spinal cord.