Diagnostic value of dermoscopy combined with reflectance confocal microscopy for clinically equivocal blue nevus

摘要

Blue nevus (BN) is a benign, acquired pigmented lesion characterized by a bluish or dark-bluish pigmentation. Most lesions are benign and stable over time, sometimes developing into malignant blue nevus (MBN), a variant of malignant melanoma. The prognosis in MBN is at least as serious as in conventional melanoma.[1] Additionally, a differential diagnosis of BN including nodular melanoma, pigmented basal cell carcinoma, and cutaneous metastasis of melanoma may lead to excessive surgical excisions.