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Abstract

Sclerosing mesenteritis (SM) is a rare idiopathic fibroinflammatory disorder of the bowel mesentery adipose tissue.While the use of rituximab has been documented in IgG4-related SM, its effectiveness in idiopathic, IgG4-unrelatedSM remains unknown. We present a case of idiopathic SM successfully managed with rituximab, suggesting thatthis treatment may be an option for patients who either have contraindications to or have not responded to current first-line therapies.

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