A 56-year-old female was referred to dermatology by her primary care physician for evaluation of a moderately painful lesion on her tongue. On examination, a 2-cm, ovoid-shaped erosion was noted on the left lateral aspect of the tongue. No significant lesions were found on the patient’s nails, buccal mucosa, face, trunk, or extremities. She denied any personal or family history of skin disorders and stated she was an otherwise healthy person. She denied the use of tobacco and alcohol. A biopsy of the lesion was taken.
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