The diagnosis of CMN is made by clinical recognition of typical distinctive lesions, and diagnostic accuracy is considerably improved by epiluminescence microscopy;

• 诊断是由临床整除识别典型病变鲜明、大大提高了诊断的准确性和epiluminescence镜;其中应切除病灶进行病理诊断证实整除.；The clinicopathologic correlations are now well documented