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J Korean Neurol Assoc. 2012 Feb;30(1):42-44. Korean. Case Report.
Seok JI , Park SH , Kim KC .
Department of Neurology, School of Medicine, Catholic University of Daegu, Daegu, Korea. jihelpgod@cu.ac.kr
Department of Internal Medicine, School of Medicine, Catholic University of Daegu, Daegu, Korea.
Abstract

Antineutrophil cytoplasmic antibodies (ANCA) are closely linked to primary systemic vasculitis, and ANCA detection has became an important diagnostic hallmark of ANCA-associated vasculitis (AAV). However, it has been reported that tuberculosis is associated with positivity for ANCA and it is difficult to differentiate clinically between tuberculosis and AAV. We report a patient with the concomitant appearance of AAV and pulmonary tuberculosis. Positivity for ANCA should be carefully interpreted as indicative of AAV, especially in countries with a high prevalence of tuberculosis.

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