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Background: Takayasu arteritis and ulcerative colitis are immune-mediated inflammatory diseases; genetic factors are assumed to play an important role in the pathogenesis of these 2 diseases. However, the coexistence of these 2 diseases has rarely been reported., Case Report: In this report, we present a rare case of a 29-year-old man with a 4 years history of ulcerative colitis who developed Takayasu arteritis. He was found to carry the following human leukocyte antigens (HLA): A11, A24, B52, B62, DR4, and DR9., Conclusions: We present a case report and review of the pertinent literature on serological analysis of HLA haplotype of the patients who exhibit both these diseases. In patients with both Takayasu arteritis and ulcerative colitis, high frequency of HLA-A24, B52, and DR 2 is observed. The pathological relevance of HLA-A24, B52, and DR2 to concomitant Takayasu arteritis and ulcerative colitis requires further investigation.

Background: Aortic valve sclerosis, calcification, and stenosis are common in the elderly. Increased life expectancy has resulted in a growing population of elderly people, with a corresponding increase in the number of patients with these degenerative aortic valve diseases., Case Report: We report a case of severe aortic stenosis in an 82-year-old woman with bleeding due to colonic angiodysplasia. The patient presented with anemia unexpectedly before her aortic valve replacement. Colon fiberscopy revealed that colonic angiodysplasia was responsible for the bleeding. The lesion was treated with endoscopic clipping before the successful aortic valve replacement. Additionally, her immunoblot analysis detected a decrease of large molecular weight multimers of von Willebrand factor., Conclusions: The relationship between aortic valve stenosis, acquired von Willebrand disease and gastrointestinal bleeding in elderly patients is known as Heyde syndrome. Clinicians should be aware of the possibilities of acquired von Willebrand disease and gastrointestinal bleeding from angiodysplasia in patients with aortic valve stenosis.