Case 18-2026: A 53-Year-Old Man with Leg Weakness, Pain, and Weight Loss

The provided article content is too brief and does not contain sufficient information about the case (diagnosis, treatment, outcomes) to create a factual summary of 6-8 sentences. It only includes the case title and publication details from the New England Journal of Medicine, Volume 394, Issue 24, Pages 2460-2469, dated June 25, 2026.