Internal medicine
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The misdiagnosis of intestinal tuberculosis (ITB), such as Crohn's disease (CD), and subsequent treatment with immunosuppressive therapies can lead to severe outcomes. However, the differential diagnosis between these two conditions can be challenging. ⋯ In the international medical community, we encounter patients from countries, such as Myanmar, where tuberculosis is endemic. Therefore, it is necessary to understand the epidemiological background of each country to accurately distinguish between CD and ITB.
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A 78-year-old woman with a history of intractable otitis media presented with a fever, hearing impairment, thigh pain, and a skin rash. She had renal dysfunction, positive myeloperoxidase-antineutrophil cytoplasmic autoantibody, otitis media, and multiple nodules in both lungs. ⋯ Induction therapy with rituximab and avacopan without glucocorticoids promptly resolved her fever and thigh pain and improved her auditory acuity and nodule in the right lung. The patient experienced no adverse effects with rituximab or avacopan.