A 39year-old man presented with a deep-seated nodule with central ulceration of the upper lip for a three-month duration.
A 39year-old man presented with a deep-seated nodule with central ulceration of the upper lip for a three-month duration.
一个39岁的男病人，在上唇深处有一颗持续三个月的结节，后来其表面的中央生成溃疡。