Eruptive melanocytic nevi in a patient with amelanotic melanoma: a paraneoplastic phenomenon?

Eruptive melanocytic nevi (EMN) describes the sudden onset of cutaneous nevi over weeks or months. Such a clinical event is generally seen in young adult patients and may be related to several possible causes. We report here a case of EMN in an old male patient followed up for a thick amelanotic cutaneous melanoma. A few months after the eruption, multiple hepatic masses, diagnosed as melanoma metastasis, were detected. The presented case may suggest that EMN may be a paraneoplastic phenomenon of alert in patients being followed for melanoma or other malignancies.

Automated summary

The translation provides a definition, clinical features, and possible causes of eruptive melanocytic nevi (EMN), and reports a case of EMN associated with melanoma metastasis. The case suggests the importance of being alert to the possibility of EMN in patients being followed for melanoma or other malignancies.