Which of the following clinical features of demyelinating myelopathy least likely suggests a progression to multiple sclerosis?
(A) Complete cord transection (B) Bilateral visual loss (C) Absence of oligoclonal bands (D) Poor prognosis
(C) Answer: c. Absence of oligoclonal bands (Ref Harrison I9/e p2656. 18/e p3372)Oligoclonal bands are variable; but when bands are present, a diagnosis of MS is more likely, thus absence of oligoclonal bands suggests a less likely progression to MS.