Intermediate Syndrome and Marchiafava-Bignami Syndrome: Double Trouble in Weaning Off.

Intermediate syndrome affects 10-40% of those with severe organophosphorus poisoning, causing delayed weakness in the proximal parts of the body, neck flexors, and breathing muscles. We present the case of organophosphorus poisoning that advanced to intermediate syndrome and subsequently worsened, with imaging later revealing the Marchiafava-Bignami condition, which aggravated the intermediate syndrome.