Autoimmune Enteropathy in an Ulcerative Colitis Patient.

Area of Science:

• Gastroenterology
• Immunology
• Internal Medicine

Background:

• Autoimmune enteropathy (AIE) is a rare disorder characterized by immune-mediated intestinal damage.
• Patients with inflammatory bowel disease (IBD) may develop secondary AIE, complicating management.
• Refractory symptoms post-surgery necessitate exploring alternative therapeutic strategies.

Observation:

• A 54-year-old female with refractory ulcerative colitis and prior colectomy presented with high ostomy output (4 L/d).
• Ileoscopy revealed severe chronic active ileitis, and enteroscopy showed diffuse chronic enteritis suggestive of AIE.
• Initial treatment with budesonide and solumedrol failed to control symptoms.

Findings:

• Tacrolimus therapy led to significant clinical improvement and normalization of ostomy output.
• This suggests tacrolimus is a viable option for managing AIE in post-colectomy patients.
• Cyclosporine was used prior to tacrolimus, with tacrolimus demonstrating superior efficacy.

Implications:

• This case underscores the importance of considering AIE in patients with unexplained enteritis, especially after gastrointestinal surgery.
• Tacrolimus offers a promising therapeutic avenue for refractory autoimmune enteropathy.
• Further research into the role of AIE in post-surgical complications is warranted.