Obinutuzumab-Induced Inflammatory Bowel Disease-Like Colitis

This case demonstrates a severe instance of obinutuzumab-induced pancolitis with IBD-like features, emphasizing the need for clinicians to consider drug-induced etiologies in patients presenting with new gastrointestinal symptoms during obinutuzumab therapy. Timely diagnosis and a multidisciplinary approach are crucial for effective management. Further reports are needed to better understand the full spectrum of gastrointestinal toxicity associated with obinutuzumab and guide future treatment.