A 37-year-old man was seen in the oral and maxillofacial surgery clinic because of a painful lesion on the tongue. On examination, there was a tender, irregular, shallow ulcer on the left ventral surface of the tongue and a mobile, smooth, tender lymph node in the left anterior cervical chain. Scattered areas of erythema and blisters were present on the lower legs.
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Flynn et al. (2010) studied this question.
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