Case ReportPublished 23 January 2026Case Report: Durable response to PD-1 blockade after failure of ALK-targeted therapy and chemoimmunotherapy in ALK-positive large B-cell lymphomaGuilherme Gasparini Spiandorelo · Ahmed Alnughmush · Olivia Crum · Dragan Jevremovic · J. C. VillasboasFrontiers in Hematologydoi 10.3389/frhem.2025.1683981