Takayasu arteritis in an adolescent with untreated Crohn's disease: A case report.

Extraintestinal manifestations in inflammatory bowel disease (IBD) most frequently involve the joints, skin, and organs such as the liver and pancreas. Inflammation of the aorta is less commonly described in pediatrics, although it has been described in adults. We report a case of an adolescent female with Crohn's disease who presented with worsening diarrhea, vomiting, and weight loss, found to have aortitis on imaging. We review the pathogenesis and clinical features of Takayasu arteritis, as well as some of its similarities to IBD to raise awareness, as early detection of this less-known extraintestinal manifestation has been associated with better outcomes.