Recurrent Pouchitis Uncovering De Novo Celiac Disease.

We present the case of a 39-year-old woman with a history of severe ulcerative colitis (UC) that was refractory to 5-aminosalicylates, corticosteroids, and biologics, and who subsequently underwent total colectomy with ileal pouch-anal anastomosis (IPAA). She developed chronic antibiotic-refractory pouchitis (CARP) characterized by recurrent abdominal pain, cramping, and diarrhea unresponsive to standard treatments. A comprehensive workup, including testing for anti-tissue transglutaminase IgA antibodies, led to the diagnosis of de novo celiac disease, confirmed by endoscopic and histopathologic findings. Initiation of a gluten-free diet resulted in the resolution of symptoms, with no relapse observed during a 9-month follow-up. Our case highlights the importance of considering secondary etiologies such as celiac disease in patients with chronic refractory pouchitis and emphasizes the need for tailored management strategies.