Noninvasive methods for the bacteriological diagnosis of early-stage Mycobacterium ulcerans infection are not available. It was recently shown that fine-needle aspiration (FNA) could be used for diagnosing M. ulcerans infection in ulcerative lesions. We report that FNA is an appropriate sampling method for diagnosing M. ulcerans infection in nonulcerative lesions.
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Cassisa et al. (2010) studied this question.
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