“…62 Short segments of focal spinal cord atrophy are typical of MS, but long segments of atrophy suggests other disorders. 63 Although lesions from MS can occur in any segment of the spinal cord, involvement restricted to the conus medullaris should prompt consideration of MOGAD. 53,64 Lesions selectively and extensively involving the spinal cord grey matter, the anterior spinal cord or anterior horn cells, or the dorsal or lateral columns, should prompt consideration of alternative diagnoses (Table 2).…”