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Our understanding of multiple sclerosis (MS) has led to the development of new therapeutic strategies, including ocrelizumab, a third-generation humanized anti-CD20 antibody. Ocrelizumab is largely well tolerated with favorable effectiveness, however, it has been associated with reports of colitis presenting weeks to months following infusion. We present a case of severe localized colitis in the setting of recent surgery and chronic ocrelizumab use. High-dose IV hydrocortisone was initiated, and the patient showed gradual improvement. Repeat imaging after discharge showed near-complete resolution of the patient's condition. This case aims to increase awareness of possible postoperative severe localized colitis in MS patients on Ocrevus.
Chowdhury et al. (Thu,) studied this question.
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